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RSC - Lab Chip latest articles RSC - Lab Chip latest articles

  • Microfluidic neural probes: in vivo tools for advancing neuroscience
    by Joo Yong Sim on March 27, 2017 at 11:00 pm

    Lab Chip, 2017, Advance ArticleDOI: 10.1039/C7LC00103G, Critical ReviewJoo Yong Sim, Matthew P. Haney, Sung Il Park, Jordan G. McCall, Jae-Woong JeongThis review discusses recent advances in microfluidic neural probe systems, which hold immense potential as in vivo tools for manipulating neural circuits in complex nervous systems.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • The 2016 edition of the Art in Science of MicroTAS
    by Darwin R. Reyes on March 27, 2017 at 11:00 pm

    Lab Chip, 2017, Advance ArticleDOI: 10.1039/C7LC90030A, EditorialDarwin R. ReyesVaibhav Jain (center) from Purdue University wins the MicroTAS 2016 Art in Science award, presented by Sam Keltie (right) from Lab on a Chip/The Royal Society of Chemistry and Darwin Reyes (left) from NIST.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • Rapid contrast matching by microfluidic SANS
    by Marco Adamo on March 27, 2017 at 11:00 pm

    Lab Chip, 2017, Accepted ManuscriptDOI: 10.1039/C7LC00179G, PaperMarco Adamo, Andreas Poulos , Ruhina M Miller, Carlos Gonzalez Lopez, Anne Martel, Lionel Porcar, Joao T CabralWe report a microfluidic approach to perform small angle neutron scattering (SANS) measurements of contrast variation and matching, extensively employed in soft and biological matter research. We integrate a low...The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • Directly embroidered micro-tubings for fluid transport in wearable applications
    by Rahim Rahimi on March 24, 2017 at 12:00 am

    Lab Chip, 2017, Accepted ManuscriptDOI: 10.1039/C7LC00074J, PaperRahim Rahimi, Wuyang Yu, Manuel Ochoa, Babak ZiaieWe demonstrate, for the first time, a facile and low-cost approach for integrating highly flexible and stretchable microfluidic channels into textile-based substrates. The integration of the microfluidics is accomplished by...The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • Recognition-Mediated Particle Detection Under Microfluidic Flow with Waveguide-Coupled 2D Photonic Crystals: Towards Integrated Photonic Virus Detectors
    by James Baker on March 24, 2017 at 12:00 am

    Lab Chip, 2017, Accepted ManuscriptDOI: 10.1039/C7LC00221A, PaperJames Baker, Rashmi Sriram, Benjamin Locke MillerLabel-free biodetection schemes compatible with standard CMOS fabrication methods constitute an important goal, as these are enabling tools for the mass production of high-sensitivity biosensors. Two-dimensional slab photonic crystal (2D...The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • Frequency tuning allows flow direction control in microfluidic networks with passive features
    by Rahil Jain on March 24, 2017 at 12:00 am

    Lab Chip, 2017, Advance ArticleDOI: 10.1039/C7LC00058H, CommunicationRahil Jain, Barry LutzA bidirectional pump created by rectifying oscillating flow driven at engineered fluidic series and parallel resonance frequencies.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • In vitro nasal mucosa gland-like structure formation on a chip
    by Kyuhawn Na on March 24, 2017 at 12:00 am

    Lab Chip, 2017, Accepted ManuscriptDOI: 10.1039/C6LC01564F, PaperKyuhawn Na, Mingyu Lee, Hyun-Woo Shin, Seok ChungThe emergence of microfluidic epithelial models using diverse types of cells within a physiologically relevant microenvironment has the potential to be a powerful tool for preclinical drug screening and pathophysiologic...The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • Biophysical isolation and identification of circulating tumor cells
    by James Che on March 22, 2017 at 12:00 am

    Lab Chip, 2017, Accepted ManuscriptDOI: 10.1039/C7LC00038C, PaperJames Che, Victor Yu, Edward B Garon, Jonathan Goldman, Dino Di CarloIsolation and enumeration of circulating tumor cells (CTCs) from blood is important for determining patient prognosis and monitoring treatment. Methods based on affinity to cell surface markers have been applied...The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • Microfluidic magnetic fluidized beds
    by Iago Pereiro on March 22, 2017 at 12:00 am

    Lab Chip, 2017, Accepted ManuscriptDOI: 10.1039/C7LC00063D, PaperIago Pereiro, Sanae Tabnaoui, Marc Fermigier, Olivia du Roure, Stephanie Descroix, Jean-Louis Viovy, Laurent MalaquinFluidization, a process in which a granular solid phase behaves like a fluid under the influence of an imposed upward fluid flow, is routinely used in many chemical and biological...The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • Recent advances in the design of polymeric microneedles for transdermal drug delivery and biosensing
    by Min Wang on March 21, 2017 at 12:00 am

    Lab Chip, 2017, Accepted ManuscriptDOI: 10.1039/C7LC00016B, Critical ReviewMin Wang, Lianzhe Hu, Chenjie XuMicroneedles is an efficient and minimally-invasive approach of transdermal drug delivery and extraction of skin interstitial fluid. Compared to solid microneedles made of silicon, metals and ceramics, polymeric microneedles have...The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • Device and programming abstractions for spatiotemporal control of active micro-particle swarms
    by Amy T. Lam on March 16, 2017 at 12:00 am

    Lab Chip, 2017, Advance ArticleDOI: 10.1039/C7LC00131B, PaperAmy T. Lam, Karina G. Samuel-Gama, Jonathan Griffin, Matthew Loeun, Lukas C. Gerber, Zahid Hossain, Nate J. Cira, Seung Ah Lee, Ingmar H. Riedel-KruseWe present a hardware setup and a set of executable commands for spatiotemporal programming and interactive control of a swarm of self-propelled microscopic agents (Euglena gracilis) inside a microfluidic chip.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • Simple microfluidic formation of highly heterogeneous microfibers using a combination of sheath units
    by D. H. Yoon on March 16, 2017 at 12:00 am

    Lab Chip, 2017, Advance ArticleDOI: 10.1039/C7LC00157F, PaperD. H. Yoon, K. Kobayashi, D. Tanaka, T. Sekiguchi, S. ShojiThis paper presents the formation of complex cross-sectional microfibers using three-dimensional microfluidic devices.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • Correction: Electrowetting without external voltage using paint-on electrodes
    by Collin B. Eaker on March 16, 2017 at 12:00 am

    Lab Chip, 2017, Advance ArticleDOI: 10.1039/C7LC90029E, Correction Open Access &nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Collin B. Eaker, Ishan D. Joshipura, Logan R. Maxwell, Jason Heikenfeld, Michael D. DickeyTo cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • Power-free, digital and programmable dispensing of picoliter droplets using a Digit Chip
    by A. Mepham on March 15, 2017 at 12:00 am

    Lab Chip, 2017, Advance ArticleDOI: 10.1039/C7LC00199A, PaperA. Mepham, J. D. Besant, A. W. Weinstein, I. B. Burgess, E. H. Sargent, S. O. KelleyThere is a growing need for power-free methods to manipulate small volumes of liquids and thereby enable use of diagnostic assays in resource-limited settings.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • Formation of surface nanodroplets facing a structured microchannel wall
    by Haitao Yu on March 15, 2017 at 12:00 am

    Lab Chip, 2017, Advance ArticleDOI: 10.1039/C6LC01555G, PaperHaitao Yu, Shantanu Maheshwari, Jiuyang Zhu, Detlef Lohse, Xuehua ZhangControl of nanodroplet size and spatial organization on a homogeneous surface by microstructures on the opposite channel.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • Combination of microfluidic high-throughput production and parameter screening for efficient shaping of gold nanocubes using Dean-flow mixing
    by Matthias Thiele on March 14, 2017 at 12:00 am

    Lab Chip, 2017, Advance ArticleDOI: 10.1039/C7LC00109F, PaperMatthias Thiele, Andrea Knauer, Daniell Malsch, Andrea Csaki, Thomas Henkel, J. Michael Kohler, Wolfgang FritzscheWe present a microfluidic setup for the reproducible synthesis of AuNPs with tunable shapes and sizes. It increases yield, lowers material consumption and time, and enables an efficient parameter screening.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • The microfluidic nebulator: production of sub-micrometer sized airborne drops
    by Esther Amstad on March 10, 2017 at 12:00 am

    Lab Chip, 2017, Advance ArticleDOI: 10.1039/C6LC01455K, PaperEsther Amstad, Frans Spaepen, Michael P. Brenner, David A. WeitzMany powders employed in the food and pharmaceutical industries are produced through spray drying because it is a cost efficient process that offers control over the particle size.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • Open-channel, water-in-oil emulsification in paper-based microfluidic devices
    by C. Li on March 10, 2017 at 12:00 am

    Lab Chip, 2017, Advance ArticleDOI: 10.1039/C7LC00114B, CommunicationC. Li, M. Boban, A. TutejaFabrication of an open-channel, paper-based microfluidic device, utilizing selective wettability, capable of generating water-in-oil emulsions and fabricating hydrogel particles.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • A fully disposable and integrated paper-based device for nucleic acid extraction, amplification and detection
    by Ruihua Tang on March 8, 2017 at 12:00 am

    Lab Chip, 2017, Advance ArticleDOI: 10.1039/C6LC01586G, PaperRuihua Tang, Hui Yang, Yan Gong, MinLi You, Zhi Liu, Jane Ru Choi, Ting Wen, Zhiguo Qu, Qibing Mei, Feng XuA fully disposable and integrated paper-based device by integrating nucleic acid extraction, amplification and LFA could achieve nucleic acid testing.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • Towards next-generation label-free biosensors: recent advances in whispering gallery mode sensors
    by Eugene Kim on March 7, 2017 at 12:00 am

    Lab Chip, 2017, Advance ArticleDOI: 10.1039/C6LC01595F, Critical ReviewEugene Kim, Martin D. Baaske, Frank VollmerWe review recent advances achieved in the field of optical whispering gallery mode biosensors. We discuss major challenges that these label-free sensors are faced with on their way towards future real-world applications and introduce different approaches suggested to overcome these issues. We furthermore highlight their potential future applications.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal […]

  • Microfluidic continuum sorting of sub-populations of tumor cells via surface antibody expression levels
    by Rhonda Jack on March 6, 2017 at 12:00 am

    Lab Chip, 2017, Advance ArticleDOI: 10.1039/C6LC01496H, PaperRhonda Jack, Khadijah Hussain, Danika Rodrigues, Mina Zeinali, Ebrahim Azizi, Max Wicha, Diane M. Simeone, Sunitha NagrathIn light of the significance of tumor cell heterogeneity, we describe a facile workflow to isolate distinct groups of tumor cells immunomagnetically, according to their surface-protein expression levels.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • Creation of a dual-porosity and dual-depth micromodel for the study of multiphase flow in complex porous media
    by Wonjin Yun on March 6, 2017 at 12:00 am

    Lab Chip, 2017, Advance ArticleDOI: 10.1039/C6LC01343K, PaperWonjin Yun, Cynthia M. Ross, Sophie Roman, Anthony R. KovscekWe present a dual-porosity micromodel with multiple etch depths for visualization of two-phase flow; flow is characterized via the micro particle image velocimetry technique. The images show different flow fields through tight portions of the pore space after dual-depth etching.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • The lab-on-PCB approach: tackling the [small mu ]TAS commercial upscaling bottleneck
    by Despina Moschou on March 6, 2017 at 12:00 am

    Lab Chip, 2017, Advance ArticleDOI: 10.1039/C7LC00121E, Critical ReviewDespina Moschou, Angeliki TserepiRecent developments in the lab-on-PCB integration technology, highlighting its standardized industrial fabrication potential.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • Microchip-based single-cell functional proteomics for biomedical applications
    by Yao Lu on March 3, 2017 at 12:00 am

    Lab Chip, 2017, Advance ArticleDOI: 10.1039/C7LC00037E, Critical ReviewYao Lu, Liu Yang, Wei Wei, Qihui ShiCellular heterogeneity has been widely recognized but only recently have single cell tools become available that allow characterizing heterogeneity at the genomic and proteomic levels.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • A passive microfluidic system based on step emulsification allows the generation of libraries of nanoliter-sized droplets from microliter droplets of varying and known concentrations of a sample
    by W. Postek on March 1, 2017 at 12:00 am

    Lab Chip, 2017, Advance ArticleDOI: 10.1039/C7LC00014F, PaperW. Postek, T. S. Kaminski, P. GarsteckiA novel geometry of channels allows us to generate multiple monodisperse emulsions with a single syringe pump by means of step emulsification.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • Thermo-acoustofluidic separation of vesicles based on cholesterol content
    by Ata Dolatmoradi on March 1, 2017 at 12:00 am

    Lab Chip, 2017, Advance ArticleDOI: 10.1039/C7LC00161D, PaperAta Dolatmoradi, Elnaz Mirtaheri, Bilal El-ZahabVesicles with various membrane stiffness values depending on their cholesterol content were separated using a thermo-acoustofluidic technique.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • Isolation and concentration of bacteria from blood using microfluidic membraneless dialysis and dielectrophoresis
    by L. D'Amico on February 28, 2017 at 12:00 am

    Lab Chip, 2017, Advance ArticleDOI: 10.1039/C6LC01277A, PaperL. D'Amico, N. J. Ajami, J. A. Adachi, P. R. C. Gascoyne, J. F. PetrosinoThis paper describes a method to isolate bacteria from blood using selective permeabilization of blood cells, membraneless dialysis, and dielectrophoresis.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • A liquid thermal gradient refractive index lens and using it to trap single living cell in flowing environments
    by H. L. Liu on February 27, 2017 at 12:00 am

    Lab Chip, 2017, Advance ArticleDOI: 10.1039/C7LC00078B, PaperH. L. Liu, Y. Shi, L. Liang, L. Li, S. S. Guo, L. Yin, Y. YangLiquid thermal gradient refractive index lens and using it to trapping single living cell in flowing environments.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • Impedance spectroscopy-based cell/particle position detection in microfluidic systems
    by H. Wang on February 24, 2017 at 12:00 am

    Lab Chip, 2017, Advance ArticleDOI: 10.1039/C6LC01223J, CommunicationH. Wang, N. Sobahi, A. HanA high-throughput and low-cost impedance spectroscopy-based microfluidic platform capable of detecting/discriminating the transverse positions of cells/particles flowing within a microfluidic channel.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • Lab-on-a-chip mRNA purification and reverse transcription via a solid-phase gene extraction technique
    by Gergana G. Nestorova on February 24, 2017 at 12:00 am

    Lab Chip, 2017, 17,1128-1136DOI: 10.1039/C6LC01421F, PaperGergana G. Nestorova, Karl Hasenstein, Nam Nguyen, Mark A. DeCoster, Niel D. CrewsWe report a lab-on-a-chip method for integrated extraction and analysis of mRNA from 3D cells using 130 [small mu ]m in diameter stainless steel needles.The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • Micro vapor bubble jet flow for safe and high-rate fluorescence-activated cell sorting
    by Koen de Wijs on February 23, 2017 at 12:00 am

    Lab Chip, 2017, Advance ArticleDOI: 10.1039/C6LC01560C, PaperKoen de Wijs, Chengxun Liu, Alexandra Dusa, Dries Vercruysse, Bivragh Majeed, Deniz Sabuncuoglu Tezcan, Kamil Blaszkiewicz, Josine Loo, Liesbet LagaeHigh rate and safe cell sorting is enabled by rapid thermal bubble jet flow in a closed microfluidic chip.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • An embedded barcode for "connected" malaria rapid diagnostic tests
    by Thomas F. Scherr on February 22, 2017 at 12:00 am

    Lab Chip, 2017, Advance ArticleDOI: 10.1039/C6LC01580H, PaperThomas F. Scherr, Sparsh Gupta, David W. Wright, Frederick R. HaseltonBarcode embedded rapid diagnostic tests are presented as a tool for improved communication in malaria elimination campaigns.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • Toward practical application of paper-based microfluidics for medical diagnostics: state-of-the-art and challenges
    by Kentaro Yamada on February 21, 2017 at 12:00 am

    Lab Chip, 2017, Advance ArticleDOI: 10.1039/C6LC01577H, Critical ReviewKentaro Yamada, Hiroyuki Shibata, Koji Suzuki, Daniel CitterioThe readiness of microfluidic paper-based analytical devices ([small mu ]PADs) for real world diagnostic applications is described from various aspects.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • Acoustothermal tweezer for droplet sorting in a disposable microfluidic chip
    by Jinsoo Park on February 21, 2017 at 12:00 am

    Lab Chip, 2017, 17,1031-1040DOI: 10.1039/C6LC01405D, PaperJinsoo Park, Jin Ho Jung, Ghulam Destgeer, Husnain Ahmed, Kwangseok Park, Hyung Jin SungAcoustothermal tweezer system composed of an acoustothermal heater and a disposable PDMS microchannel is proposed as a droplet sorting platform capable of bidirectional and multichannel droplet sorting.The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • Uptake of silver nanoparticles by DHA-treated cancer cells examined by surface-enhanced Raman spectroscopy in a microfluidic chip
    by Zhimin Zhai on February 20, 2017 at 12:00 am

    Lab Chip, 2017, Advance ArticleDOI: 10.1039/C7LC00053G, PaperZhimin Zhai, Fengqiu Zhang, Xiangyu Chen, Jie Zhong, Gang Liu, Yangchao Tian, Qing HuangThis paper reports on the synthesis and application of biocompatible and sensitive SERS nanoparticles for the study of uptake of nanoparticles into living cells in a microfluidic chip through surface-enhanced Raman spectroscopy (SERS).To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • Microfluidic train station: highly robust and multiplexable sorting of droplets on electric rails
    by Daniel Frenzel on February 17, 2017 at 12:00 am

    Lab Chip, 2017, 17,1024-1030DOI: 10.1039/C6LC01544A, Technical InnovationDaniel Frenzel, Christoph A. MertenSorting droplets on electric rails significantly improves robustness and enables multiplexing.The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • Paper-based microfluidic system for tear electrolyte analysis
    by Ali K. Yetisen on February 16, 2017 at 12:00 am

    Lab Chip, 2017, 17,1137-1148DOI: 10.1039/C6LC01450J, PaperAli K. Yetisen, Nan Jiang, Ali Tamayol, Guillermo U. Ruiz-Esparza, Yu Shrike Zhang, Sofia Medina-Pando, Aditi Gupta, James S. Wolffsohn, Haider Butt, Ali Khademhosseini, Seok-Hyun YunThis article describes a paper-based microfluidic system that quantifies the concentrations of tear electrolytes using a smartphone-based reader.The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • Subcellular probes for neurochemical recording from multiple brain sites
    by Helen N. Schwerdt on February 15, 2017 at 12:00 am

    Lab Chip, 2017, 17,1104-1115DOI: 10.1039/C6LC01398H, PaperHelen N. Schwerdt, Min Jung Kim, Satoko Amemori, Daigo Homma, Tomoko Yoshida, Hideki Shimazu, Harshita Yerramreddy, Ekin Karasan, Robert Langer, Ann M. Graybiel, Michael J. CimaCellular-scale (<10 [small mu ]m) probes were developed for minimally invasive, subsecond, and multi-site monitoring of neurochemicals in rat brain.The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • Ultra-high throughput detection (1 million droplets per second) of fluorescent droplets using a cell phone camera and time domain encoded optofluidics
    by Venkata R. Yelleswarapu on February 14, 2017 at 12:00 am

    Lab Chip, 2017, 17,1083-1094DOI: 10.1039/C6LC01489E, PaperVenkata R. Yelleswarapu, Heon-Ho Jeong, Sagar Yadavali, David IssadoreThe microdroplet megascale detector ([small mu ]MD) generates and detects the fluorescence of millions of droplets per second using a cellphone camera.The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • Liquid metal enabled microfluidics
    by Khashayar Khoshmanesh on February 14, 2017 at 12:00 am

    Lab Chip, 2017, 17,974-993DOI: 10.1039/C7LC00046D, Tutorial ReviewKhashayar Khoshmanesh, Shi-Yang Tang, Jiu Yang Zhu, Samira Schaefer, Arnan Mitchell, Kourosh Kalantar-zadeh, Michael D. DickeyThis review discusses the opportunities provided by gallium liquid metal alloys for making various microfluidic components.The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • Electrowetting without external voltage using paint-on electrodes
    by Collin B. Eaker on February 14, 2017 at 12:00 am

    Lab Chip, 2017, 17,1069-1075DOI: 10.1039/C6LC01500J, PaperCollin B. Eaker, Ishan D. Joshipura, Logan R. Maxwell, Jason Heikenfeld, Michael D. DickeyElectrowetting uses voltage to manipulate small volumes of fluid for applications including lab-on-a-chip and optical devices.The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • Dielectrowetting manipulation for digital microfluidics: creating, transporting, splitting, and merging of droplets
    by Hongyao Geng on February 13, 2017 at 12:00 am

    Lab Chip, 2017, 17,1060-1068DOI: 10.1039/C7LC00006E, PaperHongyao Geng, Jian Feng, Lisa Marie Stabryla, Sung Kwon ChoFundamental and critical unit operations (creating, transporting, splitting and merging of droplets) for digital (droplet-based) microfluidic circuits have been established using dielectrowetting.The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • Magnetic digital microfluidics - a review
    by Yi Zhang on February 13, 2017 at 12:00 am

    Lab Chip, 2017, 17,994-1008DOI: 10.1039/C7LC00025A, Critical ReviewYi Zhang, Nam-Trung NguyenA magnetic digital microfluidic platform manipulates droplets on an open surface.The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • Coplanar electrode microfluidic chip enabling accurate sheathless impedance cytometry
    by Adele De Ninno on February 9, 2017 at 12:00 am

    Lab Chip, 2017, 17,1158-1166DOI: 10.1039/C6LC01516F, Paper Open Access &nbsp This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.Adele De Ninno, Vito Errico, Francesca Romana Bertani, Luca Businaro, Paolo Bisegna, Federica CaselliWe present an original five-electrode coplanar chip enabling accurate particle sizing without the need for focusing.The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • Photobleaching kinetics-based bead encoding for multiplexed bioassays
    by Thomas H. Linz on February 9, 2017 at 12:00 am

    Lab Chip, 2017, 17,1076-1082DOI: 10.1039/C6LC01415A, PaperThomas H. Linz, W. Hampton Henley, J. Michael RamseyEncoding beads with dyes of differing photobleaching properties adds a novel dimension to bead encoding schemes.The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • An autonomous lab on a chip for space flight calibration of gravity-induced transcellular calcium polarization in single-cell fern spores
    by J. Park on February 8, 2017 at 12:00 am

    Lab Chip, 2017, 17,1095-1103DOI: 10.1039/C6LC01370H, PaperJ. Park, M. L. Salmi, W. W. A. Wan Salim, A. Rademacher, B. Wickizer, A. Schooley, J. Benton, A. Cantero, P. F. Argote, M. Ren, M. Zhang, D. M. Porterfield, A. J. Ricco, S. J. Roux, J. L. RickusA device designed for space flight measures the longest continuous observation of a plant cell's calcium response to hypergravity made to date.The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • Phased peristaltic micropumping for continuous sampling and hardcoded droplet generation
    by Adrian M. Nightingale on February 8, 2017 at 12:00 am

    Lab Chip, 2017, 17,1149-1157DOI: 10.1039/C6LC01479H, PaperAdrian M. Nightingale, Gareth W. H. Evans, Peixiang Xu, Byung Jae Kim, Sammer-ul Hassan, Xize NiuWe describe a highly robust method to generate droplets using peristaltically-pumped anti-phased oil/aqueous flows with droplet size, frequency and composition specifiable in the pump design.The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • Anisotropic sliding on dual-rail hydrophilic tracks
    by Xiaolong Yang on February 8, 2017 at 12:00 am

    Lab Chip, 2017, 17,1041-1050DOI: 10.1039/C7LC00028F, PaperXiaolong Yang, Jinlong Song, Huanxi Zheng, Xu Deng, Xin Liu, Xiaohong Lu, Jing Sun, Danyang ZhaoPotential intelligent lab-on-a-chip applications were explored based on the discussion of multidimensional anisotropic sliding on milled dual-rail hydrophilic micro-tracks.The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • Bridging the gap: microfluidic devices for short and long distance cell-cell communication
    by Timothy Quang Vu on February 3, 2017 at 12:00 am

    Lab Chip, 2017, 17,1009-1023DOI: 10.1039/C6LC01367H, Critical ReviewTimothy Quang Vu, Ricardo Miguel Bessa de Castro, Lidong QinThis review will cover how cell-cell microfluidic devices have made advancements in fields like immunology, neuroscience, ophthalmology, cancer research, and more.The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • A low-cost smartphone-based platform for highly sensitive point-of-care testing with persistent luminescent phosphors
    by Andrew S. Paterson on February 3, 2017 at 12:00 am

    Lab Chip, 2017, 17,1051-1059DOI: 10.1039/C6LC01167E, PaperAndrew S. Paterson, Balakrishnan Raja, Vinay Mandadi, Blane Townsend, Miles Lee, Alex Buell, Binh Vu, Jakoah Brgoch, Richard C. WillsonTime-gated imaging on a smartphone of a lateral flow test strip run with persistent luminescent nanophosphors.The content of this RSS Feed (c) The Royal Society of Chemistry […]

  • Pneumatic stimulation of C. elegans mechanoreceptor neurons in a microfluidic trap
    by Adam L. Nekimken on January 31, 2017 at 12:00 am

    Lab Chip, 2017, 17,1116-1127DOI: 10.1039/C6LC01165A, PaperAdam L. Nekimken, Holger Fehlauer, Anna A. Kim, Sandra N. Manosalvas-Kjono, Purim Ladpli, Farah Memon, Divya Gopisetty, Veronica Sanchez, Miriam B. Goodman, Beth L. Pruitt, Michael KriegA new microfluidic tool for simultaneous immobilization, force delivery and high resolution imaging of neuronal activity in living Caenorhabditis elegans.The content of this RSS Feed (c) The Royal Society of Chemistry […]

Analytical Chemistry: Latest Articles (ACS Publications) latest articles published in Analytical Chemistry

  • Highly sensitive detection of Cr(VI) by reduced graphene oxide chemiresistor and 1,4-dithiothreitol functionalized Au nanoparticles
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Feng Tan, Longchao Cong, Xiao Jiang, Yi Wang, Xie Quan, Jingwen Chen, Ashok MulchandaniDetection of highly toxic Cr(VI) is greatly desired. In the present study, a highly sensitive method for Cr(VI) detection by reduced graphene oxide (rGO) chemiresistor and 1,4-dithiothreitol (DTT) functionalized Au nanoparticles (AuNPs) is reported. The detection strategy is based on the selective binding between DTT functionalized AuNPs1 located in rGO conductive channels and DTT functionalized […]

  • Label-free fluorescence turn-on strategy for trypsin activity based on thiolate-protected gold nanoclusters with bovine serum albumin as the substrate
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Dan Zhao, Chuanxia Chen, Jiahui Zhao, Jian Sun, Xiurong YangBy using bovine serum albumin (BSA) as the enzyme substrate, we propose a label-free, convenient, reliable and highly sensitive fluorescence “turn-on” assay for trypsin activity and inhibitor screening by means of fluorescent gold nanoclusters capped with 11-mercaptoundecanoic acid (namely [email protected]) for the first time. The principle for the assay depends on the following features: (1) Cu2+-triggered fluorescence […]

  • Improving methane gas sensing properties of multi-walled carbon nanotubes by vanadium oxide filling
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): George Chimowa, Zamaswazi P. Tshabalala, Amos A. Akande, George Bepete, Bonex Mwakikunga, Suprakas S. Ray, Evans M. BenechaManipulation of electrical properties and hence gas sensing properties of multi-walled carbon nanotubes (MWNTs) by filling the inner wall with vanadium oxide is presented. Using a simple capillary technique, MWNTs are filled with vanadium metal which is later oxidized. It is observed that the methane gas detection response time at room temperature (293K), is […]

  • Sub-ppb nitrogen dioxide detection with a large linear dynamic range by use of a differential photoacoustic cell and a 3.5W blue multimode diode laser
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Xukun Yin, Lei Dong, Hongpeng Wu, Huadan Zheng, Weiguang Ma, Lei Zhang, Wangbao Yin, Suotang Jia, Frank K. TittelA sub-ppb level photoacoustic spectroscopy (PAS)-based sensor for nitrogen dioxide (NO2) detection was developed by means of a 3.5W CW multimode diode laser emitting at 447nm. A differential photoacoustic cell was designed to match the imperfect laser beam and reduce the external acoustic as well as the electromagnetic noise. The diode laser power, gas flow and […]

  • Aggregation/dispersion conversion of hypericin by noncanonically structured DNA and a fluorescent Ba2+ sensor
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Fan Lin, Yuehua Hu, Tao Wu, Xiaoshun Zhou, Yong ShaoThe aggregation-based fluorescent probes have received much attention due to their increased fluorescence contrast and improved selectivity upon target binding. Although the probes bearing aggregation-induced emission (AIE) and aggregation-caused quenching (ACQ) properties have been developed, low-concentration-capable aggregation probes that have a nonfluorophore-to-fluorophore conversion upon DNA binding are still in great demand. […]

  • The effect of Co and In combinational or individual doping on the structural, optical and selective sensing properties of ZnO nanoparticles
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Mpho William Maswanganye, K.E. Rammutla, T.E. Mosuang, B.W. MwakikungaVariably doped ZnO samples by the sol-gel process have been tested for response to humidity and industrial gases of CO, CH4, NH3 and H2. The elements of Cobalt (Co) and Indium (In) either singly doped or co-doped at 5wt% and annealed at varying temperature were observed to increase their grain sizes with annealing temperature while their lattice parameter decrease or increase depending on the dopant ionic radii when […]

  • A fluorescent sensor based on a diarylethene-rhodamine derivative for sequentially detecting Cu2+ and arginine and its application in keypad lock
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Haichang Ding, Baoqiang Li, Shouzhi Pu, Gang Liu, Dechang Jia, Yu ZhouA new diarylethene–rhodamine derivative (1O) has been synthesized. It displayed colorimetric and fluorometric sensing abilities toward Cu2+ in CH3CN-H2O (4/1, v/v) solution. The fluorescence and absorbance detection limits for Cu2+ were calculated to be 0.31μM and 0.28μM, respectively. More importantly, the 1O-Cu2+ complex showed highly selective and sensitive recognition toward arginine (Arg) with the […]

  • A novel luminescent chemical sensor for the determination of Pb2+ and Cu2+ ions
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Andrzej M. Kłonkowski, Maja Orłowska, Jacek RylSilica xerogel surface grafted with aminopropyl (PrNH2) groups was additionally treated by cetyltrimethylammonium bromide (CTAB) surfactant and ascorbic acid (asc) in alkaline solution. This material symbolized as SiO2-PrNH2-CTAB/asc, proved to be a stable luminescent material, exhibited an emission band peaked at 393nm under excitation wavelength 335nm. Time evolution of the band intensity suggests changes of defect concentration on […]

  • Pendant structure governed the selectivity of Pd2+ using disubstituted polyacetylenes with sulfur functions and the application of thiophanate-methyl detection
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Jun Jiang, Shanqing Li, Yongxin Yan, Min Fang, Man Chen, Ke Peng, Linfeng Nie, Yan Feng, Xin WangA series of disubstituted polyacetylenes-based fluorescent chemosensors for Pd2+ has been designed and synthesized. The optimization of sensing performance for Pd2+ ions is realized through modulating the coordination mode, type and number of coordination atoms in pendant groups. The receptor groups containing both N and S atoms (Poly […]

  • Pd on MoO3 nanoplates as small-polaron-resonant eye-readable gasochromic and electrical hydrogen sensor
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Shankara S. Kalanur, Il-Han Yoo, Hyungtak SeoHydrogen is a renewable, efficient, and clean energy carrier that can replace petroleum as the future of energy. Eventually, efficient hydrogen detection will become an important requirement for the successful and safe use of hydrogen as a fuel. Among the various hydrogen detection schemes available, gasochromic sensors have major advantages of being intrinsically safe, free of electric contacts in the sensing area, easy to use, and inexpensive. […]

  • A simple pH fluorescent probe based on new fluorophore indolizine for imaging of living cells
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Yanqing Ge, Aikun Liu, Jian Dong, Guiyun Duan, Xiaoqun Cao, Fuyou LiA simple pH fluorescent probe based on new fluorophore indolizine derivative has been synthesized and characterized. This probe responds to acidic pH (pKa=3.85) with high quantum yield (φ=0.52), short response time (within 1min), high selectivity and sensitivity. The response mechanism of the fluorescent probes relies on ICT changes. The probe was successfully used to monitor intracellular H+ within RAW 264.7 […]

  • Ultrasensitive detection of bioanalytes based on signal amplification of coil-integrated giant magnetoimpedance biosystems
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Lei Guo, Shaotao Zhi, Xuecheng Sun, Chong Lei, Yong ZhouThis article reports a novel separable bioanalyte detection system that combines magnetic nanoparticle labels with giant magnetoimpedance (GMI). The GMI sensor was fabricated via standard microfabrication techniques, and a micro-solenoid coil was integrated with the sensing elements to amplify the signal tags. To verify the feasibility of this strategy, streptavidin-coupled Dynabeads and a-fetoprotein (AFP) bioconjugates were […]

  • Role of confinement in the active self-organization of kinesin-driven microtubules
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Md. Sirajul Islam, Kaori Kuribayashi-Shigetomi, Arif Md. Rashedul Kabir, Daisuke Inoue, Kazuki Sada, Akira KakugoSelf-organization is one of the most spectacular phenomena exhibited in the wide spectrum of biologically active systems. Many studies have attempted to investigate different parameters that regulate the self-organization of moving objects. Recent theoretical and analytical-based approaches have revealed that physical confinement has regulatory effect on the […]

  • Rapid high-throughput detection of diethylstilbestrol by using the arrayed langasite crystal microbalance combined with gold nanoparticles through competitive immunoassay
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Xiaoyan Liu, Yuanwei Hu, Xuan Sheng, Yuan Peng, Jialei Bai, Quanjun Lv, Hong Jia, Huicong Jiang, Zhixian GaoIn this paper, a method for the rapid detection of diethylstilbestrol (DES) using quartz crystal microbalance (QCM) with gold nanoparticles (AuNPs) amplification was developed and this method was used on the arrayed langasite crystal microbalance (LCM) to realize the high-throughput detection of DES. A sensitive membrane which can recognize DES specifically was prepared on […]

  • Electrochemical determination of dopamine using a glassy carbon electrode modified with TiN-reduced graphene oxide nanocomposite
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Yuvaraj Haldorai, A.T. Ezhil Vilian, Muruganantham Rethinasabapathy, Yun Suk Huh, Young-Kyu HanA composite comprising reduced graphene oxide (RGO) and titanium nitride (TiN) was fabricated via a combined two-step process of sol-gel and ammonia annealing. Transmission electron microscopy showed that TiN nanoparticles with a mean diameter of &lt;10nm were densely decorated onto the RGO surface. Cyclic voltammetry indicated that a glassy carbon electrode (GCE) modified with the […]

  • A fully distributed fibre optic sensor for relative humidity measurements
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Peter J Thomas, Jon O. HellevangIn this paper we describe the characteristics of a 64-m-long distributed relative humidity sensor with cm spatial resolution. The sensing element is an optical fibre with a hygroscopic coating that undergoes a reversible expansion on water uptake, thereby transferring a strain on the fibre. The resulting distributed strain profile was interrogated using Rayleigh backscatter based optical frequency domain reflectometry. Investigations of the distributed sensor […]

  • Electrochemical fingerprints of brominated trihaloacetic acids (HAA3) mixtures in water
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Xavier Cetó, Christopher Saint, Christopher W.K. Chow, Nicolas H. Voelcker, Beatriz Prieto-SimónIn this work, we explore the capabilities of combining electrochemical sensors and chemometrics towards the analysis of haloacetic acids (HAAs) in water samples. Our approach is based on electronic tongue principles. It combines voltammetric measurements on a gold electrode with chemometric data processing, to extract characteristic fingerprints for HAAs. Cyclic and square wave […]

  • One-step synthesis of orange fluorescent copper nanoclusters for sensitive and selective sensing of Al3+ ions in food samples
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Xue Hu, Xuanxiang Mao, Xiaodan Zhang, Yuming HuangOne-step approach was developed for the fast synthesis of copper nanoclusters (CuNCs), which were used as a fluorescent probe for the sensitive detection of Al3+ in food samples. For this, aqueous CuSO4 was reduced into CuNCs by dithiothreitol (DTT) at room temperature within 30min. The synthetic process was fast, simple and easy. The DTT-capped CuNCs (DTT-CuNCs) were characterized by UV–vis absorption, fluorescence, FT-IR, TEM and […]

  • Microfluidic fabrication of responsive hierarchical microscale particles from macroscale materials and nanoscale particles
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Juan Wang, Jan C.T. Eijkel, Mingliang Jin, Shuting Xie, Dong Yuan, Guofu Zhou, Albert van den Berg, Lingling ShuiStimuli-responsive microparticles have been widely applied in sensors, actuators, chemical and biomedical analysis, and optoelectronic devices. Microfluidic technology has been demonstrated as a powerful top-down tool to create hierarchical microparticles with exquisite control over size, uniformity, morphology, structure and chemical composition. With the exploration of […]

  • The air humidity effect on the detection of TNT, PETN and NG by the FAIMS technique
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Wojciech Pawłowski, Anna Zalewska, Łukasz Matyjasek, Monika KarpińskaThe effect of air humidity on the effectiveness of the detection of trace amounts of explosives was studied using the detectors based on the FAIMS technique. Two detectors employed: PILOT-M and MO-2M differed by the way the air containing NG, TNT, or PETN vapors was ionized. The air humidity level was found to affect sensitivity of the detectors used in a different manner. In detecting TNT vapors a rise in […]

  • A flexible Ag/AgCl micro reference electrode based on a parylene tube structure
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Zhiguo Zhao, Hongen Tu, Eric G.R. Kim, Bonnie F. Sloane, Yong XuIn the effort of developing micro-electrochemical sensors, the miniaturization of reference electrodes has been a challenging task. In this paper, a flexible micro reference electrode with an internal electrolyte reservoir is reported. This new device is based on a unique microfabricated parylene tube structure, which is filled with Cl− rich electrolyte, into which a 50μm diameter silver (Ag) wire covered with a […]

  • Cytosine derivatized diethylenetriaminepentaacetic acid (dtpa) and Eu(III) complexes for selective recognition of 6-Thioguanine
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Fengyun Tian, Fan Yang, Xiaoqing Jiang, Xuekai Dou, Guanhong Liu, Peipei Ren, Jun Wang, Youtao Song, Zhiqiang Xing, Guangxi HanA novel EuIII-dtpa-bis(cytosine) complex was designed and synthesized to serve as a fluorescent probe for the determination of 6-Thioguanine (6-TG). The detection mechanism of 6-TG using this fluorescent probe was studied by ultraviolet-visible (UV–vis) and fluorescence spectroscopy. Meanwhile, the interference of other some similar base compounds […]

  • Determination of hydrogen peroxide and triacetone triperoxide (TATP) with a silver nanoparticles—based turn-on colorimetric sensor
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Ayşem Üzer, Selen Durmazel, Erol Erçağ, Reşat ApakHydrogen peroxide (H2O2) is a synthetic precursor and degradation product of peroxide-based explosives, such as TATP. We developed a colorimetric sensor that is selective, sensitive, cost-efficient and easy-to-use in conventional laboratories for the naked eye detection of hydrogen peroxide and for indirect determination of peroxide-based explosives (which are devoid of chromogenic/fluorogenic functional groups). […]

  • Sensitive fluorescence immunoassay of alpha-fetoprotein through copper ions modulated growth of quantum dots in-situ
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Yi-Wei Wang, Liye Chen, Mingfang Liang, Hui Xu, Shurong Tang, Huang-Hao Yang, Hongbo SongA novel fluorescence immunoassay has been developed for alpha-fetoprotein (AFP) detection based on copper ions (Cu2+) regulated formation of quantum dots in situ. In place of traditionally used fluorophore or enzyme for signal amplification, CuO nanoparticles (NPs) were used as signal amplifier to enhance the detection sensitivity. In the presence of AFP, CuO NPs-labeled antibody can be […]

  • Nitrogen dioxide sensing properties of PEDOT polymer films
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Katarzyna Dunst, Jakub Karczewski, Piotr JasińskiThis work presents a simple and fully electrochemical route for the polymerization of poly(3,4-ethylenedioxytiophene) (PEDOT) films for fabricating a NO2 gas sensor prepared by electropolymerization of 3,4-Ethylenedioxythiophene (EDOT) monomer in lithium perchlorate/acetonitrile solution. The main aim of this study is to determine the sensing properties of conductive polymer at elevated temperatures. The effects of the humidity, working […]

  • Selective detection of F− using Al microarrays integrated graphene oxide
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Mahesh Soni, Pawan Kumar, Ajay Soni, Satinder K. SharmaThe present study demonstrates, a selective detection of F− using aluminium (Al) micro-interdigitated electrode (μ-IDEs) array modified by graphene oxide (GO). The selectivity of the fabricated sensor towards F− in presence of contaminants like, Chloride (Cl−), Bromide (Br−) &amp; Nitrate (NO3−) at concentration of 100 and 50ppm is investigated using simple electrical measurements. The selectivity […]

  • Manipulation of fluid flow direction in microfluidic paper-based analytical devices with an ionogel negative passive pump
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Tugce Akyazi, Nerea Gil-González, L. Basabe-Desmonts, E. Castaño, M.C. Morant-Miñana, Fernando Benito-LopezMicrofluidic paper-based analytical devices (μPADs) are a relatively new group of analytical tools that represent an innovative low-cost platform technology for fluid handling and analysis. Nonetheless, μPADs lack in the effective handling and controlling of fluids, which leads to a main drawback for their reproducibility in large volumes during […]

  • An UV equipped box for photoactivation with a fluorescent coordination polymer for recognizing amine gases by “turn-color” in air
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Dan-Feng He, Yi-Wei Liu, Ying Lu, Shu-Mei Liu, Xu-gang Chen, Ning Li, Fang Luo, Shu-Xia LiuA low-cost and convenient fluorescent indicator of alkaline earth metal–organic coordination polymer Sr(H2ABTC)(DMF)(H2O) (1) (ABTC=3,3,5,5-azobenzenetetracarboxylic acid) was designed and synthesized by using a flexible ligand ABTC and alkaline earth metal ion Sr2+ for sensing trace amine gases in the air. The complex 1 was characterized by X-ray single crystal measurement, mainly […]

  • Dual-point automatic switching intracavity-absorption photonic crystal fiber gas sensor based on mode competition
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Haiwei Zhang, Liangcheng Duan, Wei Shi, Quan Sheng, Ying Lu, Jianquan YaoHere we propose a dual-point channel-switchable intracavity absorption hollow-core photonic crystal fiber acetylene sensing system based on the mode-competition phenomenon in a ring fiber laser with a Sagnac loop filter. The experimental system operating at 1532.83 and 1534.10nm is applied to 1% acetylene and shows the sensitivities of 398 and 1905 ppmv, respectively, at the absorption peaks around two operating […]

  • A novel relay-sensor for highly sensitive and selective detection of Zn2+/Pic− and fluorescence on/off switch response of H+/OH−
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Bao-Jun Wang, Wen-Kui Dong, Yang Zhang, Sunday Folaranmi AkogunA novel naphthalenediol-based bis(Salamo)-type tetraoxime compound (H4L) was synthesized and characterized. Its Zn2+ complex was found to be highly sensitive for the detection of Pic− when dissolved in water-containing organic solvent. Sensor H4L acts as a relay-sensor for recognition of Zn2+ while the L-Zn2+ complex recognizes Pic− with high selectivity and sensitivity in acceptable physiological pH range. […]

  • Exploration of congeneric Hg(II)-mediated chemosensors driven by S-Hg affinity, and their application in living system
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Mengyao She, Shaoping Wu, Zhaohui Wang, Siyue Ma, Zheng Yang, Bing Yin, Ping Liu, Shengyong Zhang, Jianli LiThree congeneric fluorescent sensors that utilize Rhodamine B were developed for the detection of mercury (II) ions. This series of sensors are functionalized by various differently substituted cinnamyl aldehyde, with CN Schiff base and CS structural motif as their core segment. The performance of these sensors adjusted by steric hindrance were investigated by absorption […]

  • Alginate-based hydrogels as an alternative to electrolytic gels for rapid EEG monitoring and easy cleaning procedures
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Paulo Pedrosa, Patrique Fiedler, Lorenzo Schinaia, Beatriz Vasconcelos, Ana C. Martins, Maria H. Amaral, Silvia Comani, Jens Haueisen, Carlos FonsecaWe propose a novel alginate-based hydrogel as an alternative to the traditional EEG electrolytic gels. The new product is injected into the electrode cap cavities in the form of a viscous liquid, just like a commercial electrolytic gel, but it forms a solid and homogeneous hydrogel shortly after application. The solid hydrogel […]

  • Sensitive and selective ratiometric nanosensors for visual detection of Cu2+ based on ions promoted oxidation reaction
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Xike Tian, Yuan Zhao, Yong Li, Chao Yang, Zhaoxin ZhouCopper is a highly toxic environmental pollutant in the environmental, biological and chemical fields. Therefore, sensitive, selective and visual detection of Cu2+ is very important for human health and practical applications. Herein, a novel hybrid ratiometric fluorescent nanosensor was developed for rapid and on-site visualization of Cu2+ on the basis of integrating benzothiazole fluorophore (MDBT) and red-emissive quantum dots […]

  • High-sensitivity fiber-optic acoustic sensor for photoacoustic spectroscopy based traces gas detection
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Zhenfeng Gong, Ke Chen, Yang Yang, Xinlei Zhou, Wei Peng, Qingxu YuWe demonstrate a high sensitive fiber-optic Fabry-Perot acoustic sensor with a wide measuring range based on a thin silver diaphragm. The silver diaphragm is fabricated by vacuum magnetron sputter deposition, therefore it has strong adhesion and good compactness. Based on these characteristics, the silver diaphragm is fabricated with few millimeters lever of diameter for a high pressure sensitivity of 5.97μm/kPa and […]

  • Spectroscopic method for the detection of 2,4-dichlorophenoxyacetic acid based on its inhibitory effect towards catalase immobilized on reusable magnetic Fe3O4-chitosan nanocomposite
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Hongmei Wang, Juan Wang, Jianwen Wang, Rui Zhu, Yuanyuan Shen, Qin Xu, Xiaoya HuA spectrometric approach for the sensitive detection of 2,4-dichlorophenoxyacetic acid (2.4-D) was developed based on the inhibitory effect of 2,4-D on the enzymatic activity of catalase. The magnetic Fe3O4-chitosan nanocomposites pre-activated with glutaraldehyde was used as support to improve the stability and reusability of catalase. After determination, the catalase-loaded Fe3O4-chitosan […]

  • Highly selective and sensitive detection of adenosine utilizing signal amplification based on silver ions-assisted cation exchange reaction with CdTe quantum dots
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Yueyue Song, Tang Tang, Xu Wang, Guanhong Xu, Fangdi Wei, Yanzi Wu, Quan Song, Yujie Ma, Yunsu Ma, Yao Cen, Qin HuAdenosine (AD) is a biomarker for monitoring the progress of lung cancer and its analysis in biological fluids of patients is significant. Here, we report a novel signal amplification platform for the sensitive and selective monitoring of AD in the biological fluids on the basis of silver ions-assisted cation exchange reaction with CdTe quantum dots (QDs). The AD […]

  • Ferric-o-phenanthroline adsorbed on a Nafion membrane: A novel optical sensor for antioxidant capacity measurement of food extracts
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Mustafa Bener, Reşat ApakWith increasing interest in consumption of antioxidant-rich food for fighting oxidative stress-related diseases, practical and low-cost tests for total antioxidant capacity (TAC) assessment are on the rise. We developed a sensitive solid membrane optical sensor for screening the TAC of food extracts and plant materials. The sensor was based on immobilizing a chromogenic oxidant, Fe(III)-o-phenanthroline (Fe(III)-phen), onto a Nafion cation-exchange membrane, and […]

  • Comparison of CuO nanoparticle and CuO/MWCNT nanocomposite for amplification of chemiluminescence immunoassay for detection of the hepatitis B surface antigen in biological samples
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Mahjoobeh Ehsani, Mohammad Javad Chaichi, S. Nezammeddin HosseiniNowadays, chemiluminescent immunoassay (CLIA) has gained increasing attention in different fields, including clinical diagnosis and environmental monitoring because of its high sensitivity and specificity, simple equipment and wide linear range. In this study, the colloidal CuO nanoparticles and CuO/MWCNT nanocomposite as the efficient nanocatalysts were introduced and compared for amplification of the luminol CLIA system. In […]

  • Immunosensing of S100β biomarker for diagnosis of spinal cord injuries (SCI)
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Sultan Khetani, Raied Aburashed, Anupriya Singh, Arindom Sen, Amir Sanati-NezhadS100 calcium-binding protein β (S100β), a member of the S100 protein family, is one of the spinal cord injury (SCI) biomarkers extensively studied for its diagnostic and prognostic potential. The concentration of S100β is found to increase in the blood and cerebrospinal fluid (CSF) after SCI. Here, we developed an electrochemical immunosensor that offers label-free and direct detection of […]

  • Paper-based analytical devices for direct electrochemical detection of free IAA and SA in plant samples with the weight of several milligrams
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Li-Jun Sun, Yuan Xie, Yong-Feng Yan, Haibing Yang, Hai-Ying Gu, Ning BaoIt is not easy to directly obtain concentrations of auxin (mainly indole-3-acetic acid, or IAA) and other phytohormones in different locations of individual plants although such information is critical for the study of their functions. Here we developed a paper-based analytical device consisting of a disposable working electrode to provide a platform for direct and simultaneous detection of free IAA and salicylic […]

  • Eu:Y2O3 highly dispersed fluorescent PVA film as turn off luminescent probe for enzyme free detection of H2O2
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Dhananjay Kumar, Sima Umrao, Himanshu Mishra, Rohit Ranjan Srivastava, Monika Srivastava, Anchal Srivastava, S.K. SrivastavaIn this work, a novel sensing scaffold consisting highly dispersed Eu:Y2O3 fluorescent flexible film of poly vinyl alcohol (EYCP) was synthesized by simple mixing method and applied to facilitate non-enzymatic detection of hydrogen peroxide (H2O2) by turn off probe of fluorescence. The fluorescence spectra of EYCP consisting number of emission sharp transitions […]

  • A novel enzyme-free sandwich-like electrochemical immunosensor for the detection of carbohydrate antigen 15-3 based on hierarchical AuPd nanochain networks
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Yan Liu, Xuexiang Weng, Ke-Ke Wang, Yadong Xue, Ai-Jun Wang, Liang Wu, Jiu-Ju FengA novel ultra-sensitive enzyme-free sandwich-like electrochemical immunosensor was fabricated based on hierarchical AuPd nanochain networks (NCNs). The architectures were firstly synthesized by a single-step seedless aqueous method with theophylline-7-acetic acid (T7AA) as a new capping agent. The obtained AuPd NCNs were used for the antibody immobilization and signal amplification. The immunosensor for […]

  • A water-soluble, cationic bis-porphyrin exhibiting a more sensitive fluorescent response to Cu2+ relative to its monomeric counterpart
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Ke-Ke Liu, Li-Na Zhang, Li-Na Zhu, Ran Zhang, Xiao-Zeng Li, De-Ming KongA water-soluble, cationic bis-porphyrin (Bis-TMPipEOPP) was synthesized, characterized, and its optical properties were investigated. Its fluorescence was found to be specifically quenched by paramagnetic Cu2+ ions via a static quenching mechanism. Based on these findings, an organic solvent-free sensing platform was developed for the “turn-off” detection of Cu2+. Such a platform could achieve sensitive […]

  • Electrospinning of graphene-oxide onto screen printed electrodes for heavy metal biosensor
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Rupesh K. Mishra, Mian Hasnain Nawaz, Akhtar Hayat, Muhammad Azhar Hayat Nawaz, Vinay Sharma, Jean-Louis MartyWe present an electrospinning of graphene-oxide (GO) onto screen printed carbon electrodes (SPCE) for heavy metals (HMs) bio-sensing. The GO was dispersed in poly (vinyl alcohol) (PVA) diluted aqueous solution, and the mixture was electrospun into GO/PVA composite nanofibers. The morphology of GO and SPCE modified with electrospun nanofiber was studied using SEM micrographs and […]

  • Fabrication of thermoresponsive near-infrared fluorescent gold nanocomposites and their thermal manipulation
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Nobuo Uehara, Yoshikuni NumanamiThermoresponsive gold nanocomposites emitting near-infrared fluorescence were fabricated and used for fluorometric staining of HeLa cells. The gold nanocomposites were composed of two types of gold nanoparticles conjugated with a thermoresponsive polymer bearing triethylenetetramine groups. One type of gold nanoparticle was fluorescent and had a particle size of 2nm, and the other type was non-fluorescent, had a particle size of 6nm, and exhibited an absorbance […]

  • High-sensitive carbon disulfide sensor using wavelength modulation spectroscopy in the mid-infrared fingerprint region
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Zhenhui Du, Jinyi Li, Xiuhan Cao, Hong Gao, Yiwen MaA sensitive carbon disulfide (CS2) sensor based on wavelength modulation spectroscopy (WMS) in the mid-infrared fingerprint region was reported. The strong band spectrum of carbon disulfide's combination band (ν1+ν3), near 2177.6cm−1, was used in the sensor. To enable WMS for wideband spectrum, a parameter of Spectral Discrimination (SD) was defined and used as a criterion for optimizing the modulation index, which was […]

  • A novel CuS thin film deposition method by laser-assisted spray photolysis deposition and its application to EGFET
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Fayroz A. Sabah, Naser M. Ahmed, Z. Hassan, Munirah Abdullah AlmessiereSeveral studies have deposited copper sulphide (CuS) thin films via spray pyrolysis using a heater. In this study, the spray pyrolysis deposition of CuS thin films was carried out using two processes; the first process called pyrolytic process to deposit CuS thin film on glass, ITO, Si and tungsten substrates using CW CO2 laser beam (10.6μm, 40W) as the heat source rather than a heater, while the second process […]

  • Development of highly selective and sensitive fluorimetric label-free mercury aptasensor based on [email protected]/ZnS quantum dots, experimental and theoretical investigation
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): B. Rezaei, M. Shahshahanipour, Ali A. Ensafi, H. FarrokhpourIn this paper, an ultra-sensitive and highly selective label-free fluorescent aptasensor was developed for the rapid detection of Hg(II), using water soluble cysteamine-capped CdTe/ZnS quantum dots ([email protected]/ZnS QDs) as an luminescent probe and a single strain DNA aptamer designed to specifically bind to Hg(II) ions. Negative charge aptamers could aggregate the cationic [email protected]/ZnS core/shell quantum dots, so the […]

  • High response to nitrogen dioxide derived from antimony peroxide modified tin oxide porous nanocomposites serving as gas sensing material
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Yuxing Ni, Kai Le, Wenjing Du, Wenjuan Fang, Xi Chen, Wei Liu, Yana Wang, Jiurong LiuThe Sb2O5 modified SnO2 porous nanocomposites serving as NO2 gas sensing material have been successfully synthesized through a facile hydrothermal method followed by a calcination process. The porous Sb2O5/SnO2 nanocomposites display a dominant pore size of ca. 20nm and specific surface area of 37.2m2g−1, which can provide large contact area for the chemical adsorption of NO2 molecules and […]

  • Highly selective detection of sulfide through poisoning silver nanoparticle catalysts
    on March 29, 2017 at 4:41 am

    Publication date: August 2017Source:Sensors and Actuators B: Chemical, Volume 247 Author(s): Lei Liu, Yi Wang, Wensheng FuCatalyst poisoning often occurs in a variety of catalytic reactions, which is undesirable as it leads to a loss of catalytic activity and durability. From the viewpoint of catalyst poisoning, we herein successfully develop a facile and highly selective method for the detection of sulfide in aqueous solution, using Ag nanoparticles (AgNPs) as probes. With the addition of different amounts of sulfide into the reaction system, a series of different kinetics for […]