Lab Chip, 2020, Accepted ManuscriptDOI: 10.1039/C9LC01130G, Paper Open Access &nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Alvaro Jose Jose Conde, Ieva Keraite, Alfredo Edoardo Ongaro, Maïwenn Kersaudy-KerhoasAcoustic micromixers have attracted considerable attention in the last years since they can deliver high mixing efficiencies without the need for movable components. However, their adoption in the academic and...The content of this RSS Feed (c) The Royal Society of Chemistry

Lab Chip, 2020, Accepted ManuscriptDOI: 10.1039/C9LC01153F, PaperFangchen Liu, Mohammad Yazdani, Beth A. Ahner, Mingming WuHarmful Algal Blooms (HABs) are an emerging environmental problem contaminating water resources and disrupting the balance of the ecosystems. HABs are caused by the sudden growth of photosynthetic algal cells...The content of this RSS Feed (c) The Royal Society of Chemistry

Lab Chip, 2020, Accepted ManuscriptDOI: 10.1039/C9LC00861F, PaperCamilly P. Pires de Mello, Carlos A Carmona-Moran, Christopher McAleer, Julian Perez, Elizabeth A Coln, Christopher Long, Carlota Oleaga, Anne Riu, Reine Note, Silvia Teissier, Jessica Langer, James J HickmanBody-on-a-chip in vitro systems are a promising technology that aims to increase the predictive power of drug efficacy and toxicity in humans when compared to traditional animal models. Here, we...The content of this RSS Feed (c) The Royal Society of Chemistry

Lab Chip, 2020, Accepted ManuscriptDOI: 10.1039/C9LC00967A, PaperHangil Ki, Jusung Oh, Gyeo-Re Han, Min-Gon KimGlycated albumin synthesized in a non-enzymatic reaction with high glucose levels in human plasma is a long-term biomarker for understanding average glucose levels over the past few weeks. Glycated albumin...The content of this RSS Feed (c) The Royal Society of Chemistry

Lab Chip, 2020, Advance ArticleDOI: 10.1039/C9LC01122F, PaperJon F. Edd, Avanish Mishra, Taronish D. Dubash, Stefan Herrera, Ridhwan Mohammad, E. Kendall Williams, Xin Hong, Baris R. Mutlu, John R. Walsh, Fernanda Machado de Carvalho, Berent Aldikacti, Linda T. Nieman, Shannon L. Stott, Ravi Kapur, Shyamala Maheswaran, Daniel A. Haber, Mehmet TonerRare CTC clusters can be purified intact from large blood volumes with a continuous three-stage non-equilibrium inertial separation array (NISA).To cite this article before page numbers are assigned, use the DOI form of citation above.The content of […]

Lab Chip, 2020, Advance ArticleDOI: 10.1039/C9LC00884E, PaperHiroshi Arakawa, Shinji Sugiura, Takumi Kawanishi, Kazumi Shin, Hiroko Toyoda, Taku Satoh, Yasuyuki Sakai, Toshiyuki Kanamori, Yukio KatoWe have constructed a mechanism-based pharmacokinetic model for triazolam and its metabolites in the entero-hepatic two-organ MPS, and extrapolated the kinetic information obtained with the MPS to the plasma concentration profiles in humans.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 Chip, 2020, Accepted ManuscriptDOI: 10.1039/C9LC01140D, PaperChi-Ju Kim, Dong Yeob Ki , Juhee Park, Vijaya Sunkara, Tae-Hyeong Kim, YooHong Min, Yoon-Kyoung ChoPlatelets play crucial roles in hemostasis and immunity. Over the last decades, clinical evidence has revealed the significance of platelets as substitutionary biomarkers for the detection and treatment of various...The content of this RSS Feed (c) The Royal Society of Chemistry

Lab Chip, 2020, Advance ArticleDOI: 10.1039/C9LC00926D, PaperAmin Zareei, Hongjie Jiang, Shirisha Chittiboyina, Jiawei Zhou, Beatriz Plaza Marin, Sophie A. Lelièvre, Rahim RahimiOn-chip ultrasonic platform enables noninvasive assessment of ECM stiffness in 3D cell cultures, by monitoring ultrasonic wave attenuation through targeted material.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 Chip, 2020, Advance ArticleDOI: 10.1039/C9LC00621D, PaperUlri N. Lee, John H. Day, Amanda J. Haack, Ross C. Bretherton, Wenbo Lu, Cole A. DeForest, Ashleigh B. Theberge, Erwin BerthierOur simple, robust, open microfluidic 3D hydrogel patterning method fabricates complex structures while minimizing material waste.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 Chip, 2020, Advance ArticleDOI: 10.1039/C9LC01108K, PaperAlessandro Chiadò, Gianluca Palmara, Annalisa Chiappone, Claudia Tanzanu, Candido Fabrizio Pirri, Ignazio Roppolo, Francesca FrascellaCancer biomarkers were detected employing 3D printed microfluidics with spatial control of surface functionalities.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 Chip, 2020, Advance ArticleDOI: 10.1039/C9LC00895K, PaperYan Wang, Nima Sayyadi, Xianlin Zheng, Travis A. Woods, Robert C. Leif, Bingyang Shi, Steven W. Graves, James A. Piper, Yiqing LuTime-resolved luminescence detection using long-lived probes with lifetimes in the microsecond region have shown great potential in ultrasensitive and multiplexed bioanalysis.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 Chip, 2020, Accepted ManuscriptDOI: 10.1039/C9LC01126A, PaperPo-Hsien Lu, Yu-Dong Ma, Chien-Yu Fu, Gwo-Bin LeeH1N1, a subtype of influenza A virus, has emerged as a global threat in the past decades. Due to its highly infectious nature, an accurate and rapid detection assay is...The content of this RSS Feed (c) The Royal Society of Chemistry

Lab Chip, 2020, Advance ArticleDOI: 10.1039/C9LC00958B, PaperKyeongsoo Jeong, Yeong Jun Yu, Jae Young You, Won Jong Rhee, Jeong Ah KimA 3D cell culture system that mimics the lung cancer microenvironment was used to investigate the effect of exosomes encapsulating miR-497 on tumor growth and angiogenesis, and could be a predictive, cost-efficient translational tool to develop targeted cancer therapy.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 Chip, 2020, Advance ArticleDOI: 10.1039/C9LC00857H, Tutorial ReviewStephen Fowler, Wen Li Kelly Chen, David B. Duignan, Anshul Gupta, Niresh Hariparsad, Jane R. Kenny, W. George Lai, Jennifer Liras, Jonathan A. Phillips, Jinping GanPotential applications of MPS in the ADME discipline.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 Chip, 2020, Advance ArticleDOI: 10.1039/C9LC01008D, PaperKeon Huh, So-Yoon Yang, Jae Suk Park, Jung A. Lee, Hyomin Lee, Sung Jae KimWe present rigorous evidence of how surface conduction and electroosmotic flow around dielectric micro-structures can accelerate ion transportation through a perm-selective membrane, while the structure had a negative impact on transportation in a macro-scale system.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 Chip, 2020, Advance ArticleDOI: 10.1039/C9LC01006H, PaperXiaotian Tan, Luke J. Broses, Menglian Zhou, Kathleen C. Day, Wenyi Liu, Ziqi Li, Alon Z. Weizer, Katherine A. Munson, Maung Kyaw Khaing Oo, Mark L. Day, Xudong FanA method utilizing urinary cancer markers to monitor tumor growth in a bladder cancer orthotopic xenograft mouse model.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 Chip, 2020, Advance ArticleDOI: 10.1039/C9LC01030K, PaperJunyi Yao, Hyun Soo Kim, Jee Young Kim, Yoon-E Choi, Jaewon ParkA Haematococcus pluvialis culture platform capable of sorting motile vegetative stages cells and culturing the selected cells under controlled mechanical stress to screen the condition that maximizes the astaxanthin accumulation.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 Chip, 2020, Accepted ManuscriptDOI: 10.1039/C9LC01051C, Paper Open Access &nbsp This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.Pablo Gíménez-Gómez, Rosalia Rodriguez-Rodriguez, Juan Manuel Rios, Marta Perez-Montero, Manuel Gutiérrez-Capitán, Jose Antonio Plaza, Estrella Gonzalez, xavier munoz berbel, Cecilia Jiménez-JorqueraIn vitro analysis requires cell proliferation in conditions close to physiological. Lab-on-a-Chip (LoC) devices simplify, miniaturize and automate traditional protocols, […]

Lab Chip, 2020, Advance ArticleDOI: 10.1039/C9LC01105F, PaperJiaqing Yu, Guoyun Sun, Nicholas Weikang Lin, Sundaravadanam Vishnu Vadanan, Sierin Lim, Chia-Hung ChenA continuous-flow intelligent optofluidic device using a convolutional neural network (CNN) computational method was developed to enable high-throughput single-bacterium profiling of bacteria cellulose (BC) with a throughput of ∼35 bacteria per second.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 Chip, 2020, Advance ArticleDOI: 10.1039/C9LC00961B, PaperChung Hsiang Lu, Ting-Sheng Shih, Po-Chen Shih, Gaurav Prashant Pendharkar, Cheng-En Liu, Chi-Kuan Chen, Long Hsu, Hwan-You Chang, Chia-Ling Yang, Cheng-Hsien LiuA finger-powered agglutination lab chip combined with a homemade CMOS image mini-system was developed for point-of-care testing applications related to agglutination effects.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 Chip, 2020, Advance ArticleDOI: 10.1039/C9LC01026B, Paper Open Access &nbsp This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.Zhanshi Yao, Ching Chi Kwan, Andrew W. PoonAn optofluidic cell stretcher using a periodically chopped optical tweezer and a microfluidic flow for non-contact, continuous cell mechanical characterization.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 Chip, 2020, Advance ArticleDOI: 10.1039/C9LC01174A, PaperNguyen Hoai An Le, Hao Deng, Citsabehsan Devendran, Nabila Akhtar, Xiaoman Ma, Colin Pouton, Hak-Kim Chan, Adrian Neild, Tuncay AlanUltrafast acoustic micromixers can effectively homogenize fluids in 4 milliseconds, at 8 ml min−1 flowrates providing a 50-fold improvement in throughput.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 Chip, 2020, Advance ArticleDOI: 10.1039/C9LC01000A, PaperEwa Guzniczak, Oliver Otto, Graeme Whyte, Nicholas Willoughby, Melanie Jimenez, Helen BridleWe introduce a novel combination of deformability-induced lift force (FD) and secondary Dean flow in spiral microchannel translated into a label-free purification approach applicable to mammalian cells, processing of millions of cells per min, up to high purities and recovery.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 Chip, 2020, Advance ArticleDOI: 10.1039/C9LC00751B, PaperNawab Singh, Md. Azahar Ali, Prabhakar Rai, Inayathullah Ghori, Ashutosh Sharma, B. D. Malhotra, Renu JohnA dual-modality microfluidic biosensor is fabricated using a mesoporous nanostructured cysteine–graphene hydrogel for the quantification of human cardiac myoglobin (cMb).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 Chip, 2020, Advance ArticleDOI: 10.1039/C9LC01042D, PerspectiveJunjie Zhong, Jason Riordon, Tony C. Wu, Harrison Edwards, Aaron R. Wheeler, Keith Pardee, Alán Aspuru-Guzik, David SintonThe marriage of robotics and fluidics provides a route to AI-guided high-throughput synthesis and testing in two modalities: integrated centralized facilities that produce data, and distributed systems that synthesize products and conduct disease surveillance.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 […]

Lab Chip, 2020, Advance ArticleDOI: 10.1039/C9LC01115C, PaperXing Huang, Binbin He, Zhongbin Xu, Hao Pei, Yun Jie RuanElectro-coalescence in step emulsification provides good control over the morphology and sizes of the Janus/Multi-layered droplets.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 Chip, 2020, Advance ArticleDOI: 10.1039/C9LC00924H, Paper Open Access &nbsp This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.Esmail Pishbin, Amin Kazemzadeh, Mohammadreza Chimerad, Sasan Asiaei, Mahdi Navidbakhsh, Aman RussomFrequency dependent slug and stratified flow are generated on centrifugal microfluidics using only the centrifugal force.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 Chip, 2020, Advance ArticleDOI: 10.1039/C9LC01212E, PaperTimothy J. Abram, Hemanth Cherukury, Chen-Yin Ou, Tam Vu, Michael Toledano, Yiyan Li, Jonathan T. Grunwald, Melody N. Toosky, Delia F. Tifrea, Anatoly Slepenkin, Jonathan Chong, Lingshun Kong, Domenica Vanessa Del Pozo, Kieu Thai La, Louai Labanieh, Jan Zimak, Byron Shen, Susan S. Huang, Enrico Gratton, Ellena M. Peterson, Weian ZhaoWe report a rapid diagnostic platform that integrates novel one-step blood droplet PCR assay and a high throughput droplet counting system to perform bacterial identification and antibiotic […]

Lab Chip, 2020, Advance ArticleDOI: 10.1039/C9LC01044K, PaperJoycelyn K. Yip, Michael Harrison, Jessi Villafuerte, G. Esteban Fernandez, Andrew P. Petersen, Ching-Ling Lien, Megan L. McCainCulturing adult zebrafish hearts in a fluidic device reduces morphological and functional declines and enables live imaging of heart regeneration.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 Chip, 2020, Advance ArticleDOI: 10.1039/C9LC00883G, PaperXiuyun Li, Gan Yuan, Weili Yu, Jun Xing, Yuting Zou, Chen Zhao, Wenchi Kong, Zhi Yu, Chunlei GuoA microfluidic SERS chip with a self-driven microchannel was fabricated with a femtosecond laser for the detection of Hg2+.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 Chip, 2020, Advance ArticleDOI: 10.1039/C9LC01071H, PaperYinning Zhou, Zhichao Ma, Ye AiWe explore the use of non-Newtonian viscoelastic fluids to achieve size-tunable elasto-inertial particle focusing and sorting in a microfluidic device, and realize the controllable tunability among three separation thresholds.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

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Publication date: 1 April 2020Source: Sensors and Actuators B: Chemical, Volume 308Author(s): Rafael Ferreira e Silva, Thiago Regis Longo Cesar Paixão, Marcelo Der Torossian Torres, William Reis de AraujoAbstractPseudomonas aeruginosa (PA) is an opportunistic pathogen responsible for several diseases in humans and it is one of the main causes of hospital-acquired infections exhibiting a high drug-resistance profile. Hence, the rapid detection of pathogenic infections caused by bacteria in biofluids from patients or screening contaminated surfaces/utensils is of the utmost importance to […]

Publication date: 1 April 2020Source: Sensors and Actuators B: Chemical, Volume 308Author(s): Yuanyuan Li, Ke Li, Yuanyuan Luo, Bo Liu, Hong Wang, Lei Gao, Guotao DuanAbstractThe formation of p-n junctions is an effective method to improve the gas sensing performances of materials. Herein, the Co3O4 quantum dots/ZnO nanocages p-n nano-heterojunctions (Co3O4/ZnO NHs) were successfully synthesized by one-off processing ZIF-8@ZIF-67 at an appropriate heat treatment condition. The prepared Co3O4/ZnO NHs containing numerous heterojunctions were demonstrated as a promising sensing material for […]

Publication date: 1 April 2020Source: Sensors and Actuators B: Chemical, Volume 308Author(s): K. Shingange, H.C. Swart, G.H. MhlongoAbstractThis work reports on the fabrication of remarkably selective and sensitive LaCoO3 nanofibers (NFs) based sensors obtained after annealing at different temperatures of 550, 650, and 700 °C. Findings from field emission scanning electron and high resolution transmission electron microscopes demonstrated that the synthesized LaCoO3 NFs consisted of a number of interconnected particles with average sizes of ∼ 47, 58 and 77 nm, for 550, […]

Publication date: 1 April 2020Source: Sensors and Actuators B: Chemical, Volume 308Author(s): Wenjing Li, Yifei Ren, Ying GuoAbstractZirconia/zinc oxide (ZrO2/ZnO) nanocomposites have been prepared by electrospinning method followed by in-situ high temperature calcination approach. Compared with pure ZnO materials, ZrO2/ZnO nanocomposites have improved sensing properties for butanol. The doping content of zirconia has significant impact on the sensing behavior of ZrO2/ZnO nanocomposites. Especially, at the optimum operating temperature of 245 °C, the nanocomposite of 10.7 % […]

Publication date: 1 April 2020Source: Sensors and Actuators B: Chemical, Volume 308Author(s): Fengdong Qu, Nan Zhang, Dongliang Liu, Shendan Zhang, Bhusankar Talluri, Yan Zheng, Tiju Thomas, Ruiyang Zhao, Shengping Ruan, Minghui YangAbstractHeteroatom-doping is an effective approach for tuning the properties of transition metal oxides relevant to sensing. Here pristine Co3O4 and a series of Mn-doped Co3O4 multishelled microspheres have been prepared using amorphous-coordination-polymers (CPs). The method is essentially self-templated approach. The as-prepared materials have been used for the […]

Publication date: 1 April 2020Source: Sensors and Actuators B: Chemical, Volume 308Author(s): Zhenhua Liu, Jinyu Huang, Quan Wang, Jiaxi Zhou, Jiexiong Ye, Xuejin Li, Youfu Geng, Zhiqiang Liang, Yu Du, Xiaoqing TianAbstractIn2O3 nanorods were successfully incorporated by different amount of multi-layer black phosphorus (m-BP), forming the hetero-structured BP-In2O3 composites. The structure, morphology and composition of the as-synthesized composites were characterized by X-ray diffraction (XRD), field-emission electron microscopy (FESEM), transmission electron microscopy (TEM) and X-ray […]

Publication date: 1 April 2020Source: Sensors and Actuators B: Chemical, Volume 308Author(s): Jihang Liu, Zhan Zhao, Zhen Fang, Zhenyu Liu, Yusi Zhu, Lidong DuAbstractFor achieving the high-performance film bulk acoustic resonator (FBAR) humidity sensor with MEMS process reliability, we proposed a novel FBAR design based on the polyimide film (PI-FBAR). The PI film was employed to provide multifunction for the structural supporting and humidity sensing simultaneously, which was first used in the back-trench FBAR. Due to its flexible and low acoustic impedance characters, it can provide […]

Publication date: 1 April 2020Source: Sensors and Actuators B: Chemical, Volume 308Author(s): Y. Tie, S.Y. Ma, S.T. Pei, Q.X. Zhang, K.M. Zhu, R. Zhang, X.H. Xu, T. Han, W.W. LiuAbstractIn this work, we studied Pr doped BiFeO3 hollow nanofibers as a potential functional material, assembled from nanoparticles through electrospinning technique and calcination route, which were decorated by Pr ions and ameliorated by hollow nanofiber structure. The Pr doped BiFeO3 hollow nanofibers, improved by the uniform and tubular structure with a larger specific surface area (63.53 m2/g), higher pore […]

Publication date: 1 April 2020Source: Sensors and Actuators B: Chemical, Volume 308Author(s): Vahid Nasirian, Mojtaba Shamsipur, Fatemeh Molaabasi, Kamran Mansouri, Morteza Sarparast, Vonny Salim, Ali Barati, Soheila KashanianAbstractmicroRNAs (miRNAs) are significant biomarkers either for probing cellular events or disease diagnosis. Compared to regular RNA, miRNAs possess short length and low abundance with sequence homology, which results in major challenges on the determination of these biomarkers. Thus, developing a simple, rapid, and effective technique for qualitative and quantitative […]

Publication date: 1 April 2020Source: Sensors and Actuators B: Chemical, Volume 308Author(s): Jinhui Feng, Faying Li, Lei Liu, Xuejing Liu, Yanrong Qian, Xiang Ren, Xueying Wang, Qin WeiAbstractA new, porous nanoarray BiVO4/CuxS (PN-BiVO4/CuxS) platform as an advanced signal amplification strategy under anodic bias on the process of electrochemical catalysis assisted self-enhancing based photoelectrochemical (ECASE-based PEC) without electron donors was established for ultrasensitive procalcitonin (PCT) detection. The system operated upon that the PN-BiVO4/CuxS electrode could enhance […]

Publication date: 1 April 2020Source: Sensors and Actuators B: Chemical, Volume 308Author(s): Mahadurage Sachintha Wijesinghe, Karen Batchelder, Dhanushka Wickramasinghe, Jung-Min Oh, Kwok-Fan ChowAbstractHere we report a battery-powered distance-based electrochemical sensor that can be operated without the need for laboratory-based instruments. This sensing platform can effectively convert an electrochemical current from a sensing reaction to a visual signal that is identifiable as the length of the silver band electrode (Ag BE). As presently configured, the electrochemical sensing reaction […]

Publication date: 1 April 2020Source: Sensors and Actuators B: Chemical, Volume 308Author(s): Ashok D. Ugale, Govind G. Umarji, Sung Hyeon Jung, Nishad G. Deshpande, Wonyoung Lee, Hyung Koun Cho, Ji Beom YooAbstractHere we present toxic gas fiber-based sensor, operating at room temperature, which is important in wearable electronics for monitoring the environment and human health. Continuous strong and flexible graphene oxide (GO) fibers, with aligned GO sheets are synthesized by transforming a prealigned liquid crystalline GO solution using a wet spinning assembly. GO fibers are chemically […]

Publication date: 1 April 2020Source: Sensors and Actuators B: Chemical, Volume 308Author(s): D. Filotás, B.M. Fernández-Pérez, L. Nagy, G. Nagy, R.M. SoutoAbstractThe evolution of hydrogen gas from corroding magnesium arises not exclusively from the cathodic half-cell reaction due to the consumption of the electrons released by the dissolving metal, but anodized magnesium generates significant amounts of H2 gas as well. In addition, the increase of the anodic overpotential enhances the rate of hydrogen gas generation. Therefore, spatially-resolved detection of the actual […]

Publication date: 1 April 2020Source: Sensors and Actuators B: Chemical, Volume 308Author(s): Chang Liu, Wen-Yuan Pei, Jian-Fang Li, Jin Yang, Jian-Fang MaAbstractRational design and preparation of efficient electrochemical sensor with great stability and environmentally friendly performance is a critical step for electrochemical detection. Herein, a new dumbbell-shaped metal-organic hybrid complex, [Co4(TCA)2]·3DMF·MeOH (Co-TCA), was synthesized with the bowl-shaped p-tert-butylthiacalix[4]arene (TCA). By a simple one-step solvothermal reaction method, Co-TCA was embedded and […]

Publication date: 1 April 2020Source: Sensors and Actuators B: Chemical, Volume 308Author(s): Kewarin Phonklam, Rodtichoti Wannapob, Wilaiwan Sriwimol, Panote Thavarungkul, Tonghathai PhairatanaAbstractCardiac troponin T (cTnT) is a cardiac biomarker introduced for early diagnosis, patient follow-up and guidelines for acute myocardial infarction treatment. In this work a novel cTnT-molecularly imprinted polymer (MIP) based electrochemical sensor using a screen printed carbon electrode (SPCE) was developed. The MIP sensor employed an electrodeposited polymethylene blue (PMB) redox probe on […]

Publication date: 1 April 2020Source: Sensors and Actuators B: Chemical, Volume 308Author(s): Sirirat Wachiralurpan, Kosum Chansiri, Peter A. LieberzeitAbstractCurrent methods for identifying Listeria monocytogenes are both time and labor intensive. However, it is highly desirable to detect it rapidly and reliably to prevent and/or identify contamination of foodstuff. Herein we propose a mass-sensitive sensor operating at elevated temperatures, 50−55 °C, for that purpose. Sensitive and selective detection relies on distinguishing genes of genomic extract of L. monocytogenes. A […]

Publication date: 1 April 2020Source: Sensors and Actuators B: Chemical, Volume 308Author(s): Shuibing Wang, Zhao Ai, Zefen Zhang, Man Tang, Nangang Zhang, Feng Liu, Gujing Han, Shao-Li Hong, Kan LiuAbstractInfluenza viruses with multiple subtypes have highly virulent in humans, of which influenza hemagglutinin (HA) is the major viral surface antigen. Simultaneous and automated detection of multiple influenza HA are of great importance for early-stage diagnosis and operator protection. Herein, a magnetism and size mediated microfluidic platform was developed for point-of-care detection of […]

Publication date: 1 April 2020Source: Sensors and Actuators B: Chemical, Volume 308Author(s): Rui Duan, Xiaolei Hao, Yanzeng Li, Hanyang LiAbstractIn this work, a liquid crystal (LC) biosensor based on whispering gallery mode (WGM) lasing is reported and demonstrated for real-time and high-sensitive detection of acetylcholinesterase (AChE) and its inhibitors. Benefit from the double amplification by the WGM resonance and the 5CB molecules, small changes in biological processes are significantly enhanced in WGM spectral responses. The spectral responses provide direct information about the […]

Publication date: 1 April 2020Source: Sensors and Actuators B: Chemical, Volume 308Author(s): Maria Freitas, Henri P.A. Nouws, Elisa Keating, Cristina Delerue-MatosAbstractDespite the evolution of targeted therapies in oncology, some challenges such as screening and early diagnosis of cancer-related biomarkers still remain. The analysis of the Human Epidermal growth factor Receptor 2 (HER2) in biological fluids provides essential information for effective treatments. In this work we report the development of an electrochemical immunomagnetic bioassay for the analysis of the extracellular […]

Publication date: 1 April 2020Source: Sensors and Actuators B: Chemical, Volume 308Author(s): Yuxing Wang, Irfani R. Ausri, Zimeng Wang, Cam Derry, Xiaowu Shirley TangAbstractHere, we report the development of a transdermal membrane biosensor for the electrochemical detection of lactate in body fluids, a key health indicator. Three membrane electrodes, including a gold working electrode, a gold counter electrode, and a stable built-in solid-state Ag/AgCl electrode, were attached to a microneedle array that pierces the human skin painlessly to extract a small volume of body fluids, and perform […]

Publication date: 1 April 2020Source: Sensors and Actuators B: Chemical, Volume 308Author(s): M. Erzina, A. Trelin, O. Guselnikova, B. Dvorankova, K. Strnadova, A. Perminova, P. Ulbrich, D. Mares, V. Jerabek, R. Elashnikov, V. Svorcik, O. LyutakovAbstractCombining the advanced approaches of surface functionalization and chemistry, plasmonics, surface enhanced Raman spectroscopy (SERS), and machine learning, we propose the advanced route for express and precise recognition of normal and cancer cells. Our interdisciplinary approach uses plasmonic coupling between the specific nanoparticles and […]

Publication date: 1 April 2020Source: Sensors and Actuators B: Chemical, Volume 308Author(s): Yunpeng Su, Cuiping Li, Mingji Li, Hongji Li, Sheng Xu, Lirong Qian, Baohe YangAbstractA quartz surface acoustic wave (SAW) delay line humidity sensor based on three-dimensional architecture graphene (3DAG)/polyvinyl alcohol (PVA)/SiO2 layered sensing film have been proposed and applied in respiration monitoring. An amorphous SiO2 nanolayer was deposited on the total surface of the SAW delay line by radio frequency magnetron sputtering method as a protect coating and sensing film. Then, 3DAG grown on […]

Publication date: 15 March 2020Source: Sensors and Actuators B: Chemical, Volume 307Author(s): Wei Liu, Yuelin Xie, Tingxuan Chen, Qixiao Lu, ShafiqUr Rehman, Ling Zhu

Publication date: 15 March 2020Source: Sensors and Actuators B: Chemical, Volume 307Author(s): Da Meng, Shendan Zhang, Tiju Thomas, Chaozhu Huang, Jingwei Zhao, Ruiyang Zhao, Ying Shi, Fengdong Qu, Minghui YangAbstractMethanol detection is known to be a challenge using the normal Pt/C based gas sensor. This is primarily due to CO poisoning of the Pt active sites, resulting in an irreversible loss of sensor performance. In this paper, a novel fuel cell type gas sensor based on platinized mesoporous tungsten nitride (Pt/WN) is fabricated by employing a hot-press method. The device shows […]

Publication date: 15 March 2020Source: Sensors and Actuators B: Chemical, Volume 307Author(s): Shuguo Yu, Hongyan Zhang, Chu Chen, Jun Zhang, Peng LiAbstractIn this study, a humidity sensor with high performance based on two dimensional porous graphite carbon nitride (2D Au/g-C3N4) by stripping methods was designed. It solves the problem that g-C3N4 does not easily dissociate water molecules to form conductive ions (H3O+). Density functional theory (DFT) simulation results show that Au nanoparticles on the surface of g-C3N4 can promote the decomposition of water to form hydroxyl groups and […]

Publication date: 15 March 2020Source: Sensors and Actuators B: Chemical, Volume 307Author(s): Bao-Yu Song, Meng Zhang, Yang Teng, Xian-Fa Zhang, Zhao-Peng Deng, Li-Hua Huo, Shan GaoAbstractHerein, we firstly reported a waste scallion root biotemplate strategy to massively fabricate mesoporous SnO2 hierarchical architectures, which can realize precise detection of ppb-level H2S gas in highly humid atmosphere (RH = 85%). The hierarchical skeleton is made up of the crosslinked nanoparticles of about 13 nm with a layer of nanospheres uniformly loaded on the surface of small-sized particles. Such […]

Publication date: 15 March 2020Source: Sensors and Actuators B: Chemical, Volume 307Author(s): Fangmeng Liu, Jing Wang, Li Jiang, Rui You, Qingji Wang, Caileng Wang, Zetian Lin, Zijie Yang, Junming He, Ao Liu, Peng Sun, Xu Yan, Geyu LuAbstractThe planar yttria-stabilized zirconia (YSZ) solid electrolyte based mixed potential type gas sensing devices attached with molybdate MMoO4 (M: Ni, Co, Zn, Mn and Sr) sensing electrodes (SEs) were designed and fabricated, attempting to sensitively and rapidly monitor ppb-level SO2. The sensor using SrMoO4-SE possessed the highest potential response signal […]

Publication date: 15 March 2020Source: Sensors and Actuators B: Chemical, Volume 307Author(s): Maddaka Reddeppa, T. Chandrakalavathi, Byung-Guon Park, G. Murali, Ravichandran Siranjeevi, Goli Nagaraju, Jae Su Yu, R. Jayalakshmi, Song-Gang Kim, Moon-Deock KimAbstractCoupling of graphene and its derivatives with organic moieties is one of the promising strategies to enhance the gas sensing performance. A novel ternary nanocomposite of p-Phenylenediamine-graphene oxide (PGO)/InGaN nanorods (NRs) probed as chemiresistive gas sensor for carbon monoxide (CO) in ppm concentrations. The InGaN NRs […]

Publication date: 15 March 2020Source: Sensors and Actuators B: Chemical, Volume 307Author(s): Jia-He Yang, Kai-Ping Yuan, Li-Yuan Zhu, Cheng-Zhou Hang, Xiao-Xi Li, Jia-Jia Tao, Hong-Ping Ma, An-Quan Jiang, Hong-Liang LuAbstractThe α-Fe2O3/ZnO core-shell nanowires (NWs) on micro-electro-mechanical system structure were prepared for hydrogen sulfide (H2S) gas sensing. Core α-Fe2O3 NWs were prepared by thermal oxidation and the ZnO shell layer was coated by atomic layer deposition, respectively. The diameter of the obtained α-Fe2O3/ZnO core-shell NWs increases uniformly with […]

Publication date: 15 March 2020Source: Sensors and Actuators B: Chemical, Volume 307Author(s): Satoshi Nakata, Naho TakaharaAbstractThe dynamic nonlinear response of a semiconductor gas sensor under constant flow was investigated to enhance the selectivity of the sensor response to hydrocarbon gases and alcohol vapors. A sinusoidal cyclic temperature and constant flow were applied to a SnO2 semiconductor gas sensor. The resulting conductance as the sensor response was Fourier-transformed to the frequency domain, and the maximum and minimum values of conductance were taken to evaluate the […]

Publication date: 15 March 2020Source: Sensors and Actuators B: Chemical, Volume 307Author(s): Won Taek Jung, Jun Woo Jeon, Hyun-Seok Jang, Do Yeob Kim, Hyung-Kun Lee, Byung Hoon KimAbstractAn electronic textile (e-textile) was fabricated for use in NO2 gas sensor, using graphene oxide (GO) and commercial silk fabric (CSF) (GO-CSF). After thermal reduction at 400, 500, 600 ℃, the gas sensing property of the e-textiles (rGO-CSF) was measured for NO2. The morphology, structure, microstructure, and chemical components of the GO-CSF and rGO-CSF were analyzed by scanning electron microscope, […]

Publication date: 15 March 2020Source: Sensors and Actuators B: Chemical, Volume 307Author(s): Tzu-Hsuan Chang, Daniel Struk, Milad Navaei, Vladimir M. Doroshenko, Victor Laiko, Eugene Moskovets, Konstantin Novoselov, Jean-Marie D. Dimandja, Peter J. HeskethAbstractIn this paper we report the first integration of a silicon microfabricated gas chromatography column with an ion trap mass spectrometer. The MEMS-column is fabricated in all silicon materials, with an integrated platinum resistive heater and temperature sensors. This design enables low power operation and rapid temperature heating, […]

Publication date: 15 March 2020Source: Sensors and Actuators B: Chemical, Volume 307Author(s): Qiang Hu, Baoyu Huang, Yan Li, Shengming Zhang, Yaxiong Zhang, Xiaohui Hua, Guo Liu, Bingsheng Li, Jinyuan Zhou, Erqing Xie, Zhenxing ZhangAbstractThe ability of cerium oxide (CeO2) to store oxygen by its own unique redox reaction between Ce3+ and Ce4+ ions will play a crucial role in gas detection. Thus, it is proposed to regulate the ratio of Ce3+ and Ce4+ ions via palladium element (Pd) doping for the purpose of enhancing methanol response. The pristine and Pd-doped CeO2 nanofibers were […]

Publication date: 15 March 2020Source: Sensors and Actuators B: Chemical, Volume 307Author(s): Nan Zhang, Yizhuo Fan, Yang Lu, Chao Li, Jingran Zhou, Xin Li, Samira Adimi, Shengping RuanAbstractFacets engineering and noble metal decorating can highly improve the physical and chemical properties and benefit the applications of metal oxide semiconductors. In this work, tin oxide (SnO2) nanocrystallites (SnO2 NCs) with (221) facets exposed were prepared via a hydrothermal method and gold-decoration was carried out by a water bath strategy. Acetylene-sensing properties of sensors based on SnO2 […]

Publication date: 15 March 2020Source: Sensors and Actuators B: Chemical, Volume 307Author(s): M.N. Rumyantseva, S.A. Vladimirova, V.B. Platonov, A.S. Chizhov, M. Batuk, J. Hadermann, N.O. Khmelevsky, A.M. GaskovAbstractTubular ZnO – Co3O4 nanofibers were co-electrospun from polymer solution containing zinc and cobalt acetates. Phase composition, cobalt electronic state and element distribution in the fibers were investigated by XRD, SEM, HRTEM, HAADF-STEM with EDX mapping, and XPS. Bare ZnO has high selective sensitivity to NO and NO2, while ZnO-Co3O4 composites demonstrate selective […]

Publication date: 15 March 2020Source: Sensors and Actuators B: Chemical, Volume 307Author(s): Jun Ho Lee, Min Sun Park, Hwaebong Jung, Yong-Sahm Choe, Wonkyung Kim, Young Geun Song, Chong-Yun Kang, Hyun-Sook Lee, Wooyoung LeeAbstractWe report on the sensitive and selective sensing properties of SnO2 nanorods (NRs) based gas sensors coupled with a miniature gas chromatography (mini-GC) system for the detection of acetylene. The SnO2 NRs were fabricated by a glancing angle deposition (GLAD) method and their average height and diameter were ∼200 nm and ∼30 nm, respectively. In order to […]

Publication date: 15 March 2020Source: Sensors and Actuators B: Chemical, Volume 307Author(s): Jicu Hu, Mingpeng Chen, Qian Rong, Yumin Zhang, Huapeng Wang, Dongming Zhang, Xinbo Zhao, Shiqiang Zhou, Baoye Zi, Jianhong Zhao, Jin Zhang, Zhongqi Zhu, Qingju LiuAbstractIncorporating of semiconducting metal oxides and carbonaceous materials reasonably has been proven to be an effective method to improve the sensing properties for gas sensors. In this work, the novel reduced graphene oxide-wrapped hollow SnO2 nanospheres (H-SnO2@rGO) composites are successfully synthesized via a simple […]

Publication date: 15 March 2020Source: Sensors and Actuators B: Chemical, Volume 307Author(s): Xumeng Wu, Yu Mao, Dongyuan Wang, Qiuxiang Huang, Qiang Yin, Ming Zheng, Qinghua Hu, Hongqing WangAbstractIt is still a challenge for scientists to eliminate interference and improve chromatic aberration in designing colorimetric uranyl ions sensors, and it is also not clear how the species of uranium and sensor synergistically affect the coloration mechanism and coordination mode of ligands containing nitrogen or oxygen atoms at different pH. Herein, we design and synthesize […]

Publication date: 15 March 2020Source: Sensors and Actuators B: Chemical, Volume 307Author(s): Chundong Liu, Maosen Yang, Jing Yu, Fengcai Lei, Yisheng Wei, Qianqian Peng, Chonghui Li, Zhen Li, Chao Zhang, Baoyuan ManAbstractSurface-enhanced Raman spectroscopy (SERS) is widely used in chemical analysis, with very promising application prospects in daily life. However, there are still lots of problems in actual operation, for instance, pollutant detection from sewage, in which the analyte is often dispersed in nonhomogeneous solutions, leading to inaccurate Raman signal collection. Adjusting […]

Publication date: 15 March 2020Source: Sensors and Actuators B: Chemical, Volume 307Author(s): Akhilesh Kumar Gupta, Chih-Hsien Hsu, Agnes Purwidyantri, Briliant Adhi Prabowo, Kuo-Ping Chiu, Ching-Hsiang Chen, Ya-Chung Tian, Chao-Sung LaiAbstractThis paper reports the combined plasmon coupled - surface energy transfer (PC-SET) and a distance-dependent model constructed by gold nanoparticles (GNPs) over zinc oxide nanorod (ZnO-NR) as a robust and tunable plasmontronic fluorescence regime for the detection of rhodamine 6G (R6G). Further, the deposition of metal created extraordinary contact […]

Publication date: 15 March 2020Source: Sensors and Actuators B: Chemical, Volume 307Author(s): Jakub Joniak, Henrieta Stankovičová, Juraj Filo, Katarína Gaplovská-Kyselá, Vladimír Garaj, Marek CigáňAbstractThe pH sensing properties of five (four new) small-molecule fluorescent “turn-on” pH probes based on 3-amino- and 3-dimethylamino-coumarin skeleton were investigated. Protonation of their amino- or dimethylamino- group leads to 12–1400-fold increase in their fluorescence intensity in highly acidic conditions. Whereas […]

Publication date: 15 March 2020Source: Sensors and Actuators B: Chemical, Volume 307Author(s): Yun Shu, Jing Yan, Qin Lu, Zhengping Ji, Dangqin Jin, Qin Xu, Xiaoya HuAbstractAg2S quantum dots (QDs) are good candidate for tuning its emission in the second near-infrared (NIR-II) window due to its narrow band gap. But the high Ag+ mobility in Ag2S nanocrystals causes plenty of cation deficiency, which lead to the lattice defects of NIR-II Ag2S QDs. In this paper, Ag2S QDs were doped with different metal cations by a facile “one-pot” synthesis method. The Pb-doped Ag2S QDs showed the […]

Publication date: 15 March 2020Source: Sensors and Actuators B: Chemical, Volume 307Author(s): Dan Li, Yanxiao Jiang, Sihan Chen, Qingnan Zhao, Yue Zhang, Wei Wang, Ying Sun, Pinyi Ma, Daqian Song, Xinghua WangAbstractA simple and sensitive fluorescence assay was established for the effective monitoring of alkaline phosphatase (ALP) activity in serum based on the inner filter effect (IFE). The facile-synthesized silicon nanoparticles (SiNPs), as the fluorescent indicator of this sensing system, were prepared via a one-pot strategy using N-[3-(trimethoxysiyl)propyl]-ethylenediamine (DAMO) and […]

Publication date: 15 March 2020Source: Sensors and Actuators B: Chemical, Volume 307Author(s): Di Shao, Shuyun Bi, Rui Zhao, Xiaoyue Sun, Xu Li, Jingfu YuAbstractTwo sensitive surface-enhanced Raman spectroscopy (SERS) analytical methods for dinitolmide and toltrazuril were developed by silver nanoparticles (AgNPs). The dinitolmide and toltrazuril were determined in 0.0565 mol L−1 and 0.0847 mol L−1 NaOH solutions respectively. The enhancement factors (EF) were 1.76 × 105 for dinitolmide and 1.27 × 105 for toltrazuril. Under […]

Publication date: 15 March 2020Source: Sensors and Actuators B: Chemical, Volume 307Author(s): Pengcheng Nie, Dongying Zhu, Zijian Cui, Fangfang Qu, Lei Lin, Yue WangAbstractMetamaterial absorbers consisting of metal, metal-dielectric, or dielectric materials display properties that make them feasible for use as signal enhancement tools to quantitatively detect traces amounts of samples. We propose an all-dielectric broadband terahertz absorber on a highly-doped silicon-based sensing chip. This semiconductor metamaterial absorber exhibits an experimental absorption of ∼99 % at 1.33 THz […]

Publication date: 15 March 2020Source: Sensors and Actuators B: Chemical, Volume 307Author(s): Chunyan Liu, Xiaohui Xu, Changding Wang, Guoyu Qiu, Weichun Ye, Yumin Li, Degui WangAbstractIt is popular and promising to explore a prominent surface-enhanced Raman scattering (SERS) substrate for simultaneous determination of multiple analytes in drug safety and quality monitoring. To achieve the goal, in this work, we constructed a plasmonic metal/semiconductor oxide heterostructure by depositing Ag nanoparticles (NPs) on ZnO nanorods. The ZnO/Ag substrate exhibited prominent SERS performance by […]

Publication date: 15 March 2020Source: Sensors and Actuators B: Chemical, Volume 307Author(s): Qiuqin Lai, Shufan Si, Tianyi Qin, Benjie Li, Hanxiang Wu, Bin Liu, Hanhong Xu, Chen ZhaoAbstractWith the wide application in chemistry and pharmaceutical industries, the toxic effect of hydrazine on the ecological environment (e.g. inhibition on seed germination and seedling growth) as well as human health (carcinogen) arises extensive concerns. Although a lot of probes have been developed and used for fluorescence imaging of hydrazine in living cells and animals, to our best knowledge, there are […]

Publication date: 15 March 2020Source: Sensors and Actuators B: Chemical, Volume 307Author(s): Xueqing Gao, Xuming Zhuang, Chunyuan Tian, Huitao Liu, Wing-Fu Lai, Zhenguang Wang, Xuming Yang, Lingxin Chen, Andrey L. RogachAbstractIn this work, copper nanoclusters (CuNCs), in which cysteine served as both a reducing agent and a protection ligand, were synthesized, and impregnated into a nanogel of glycol chitosan (GC), forming a CuNCs@GC nanocomposite. The stability of CuNCs incorporated into a nanogel was significantly improved, while their photoluminescence (PL) intensity of CuNCs@GC could […]

Publication date: 15 March 2020Source: Sensors and Actuators B: Chemical, Volume 307Author(s): Chao Wang, Lei Liu, Xuejing Liu, Yu Chen, Xueying Wang, Dawei Fan, Xuan Kuang, Xu Sun, Qin Wei, Huangxian JuAbstractThe accurate clinical diagnosis and prognosis keep ultrasensitive detection of NT-proBNP in a necessary topic. This work proposes a “signal-on” electrochemiluminescence (ECL) biosensor for ultrasensitive quantification of NT-proBNP with a newly designed luminophore. The luminophore is prepared by depositing Mn-doped ZnAgInS/ZnS nanocrystals in thermally-treated UiO-66-NH2 […]

Publication date: 15 March 2020Source: Sensors and Actuators B: Chemical, Volume 307Author(s): Sathish Panneer Selvam, Mahajan Hansa, Kyusik YunAbstractIn this work, rapid construction of an electrochemical sensing platform based on self-assembled gold nanoparticles (Au NPs) on MoS2 nanoflakes (NFs) was achieved by probe sonication process. The contemporary study dealt with the first electrochemical sensor (Au-MoS2) to detect UA and MT simultaneously through differential pulse voltammetry (DPV). The developed Au-MoS2 sensing platform was dropped-cast on the glassy carbon electrode (GCE) and […]

Microsystems & Nanoengineering, Published online: 13 January 2020; doi:10.1038/s41378-019-0115-9An electrochemical sensing platform has been developed for detecting the pesticide atrazine based on zinc oxide (ZnO) nanofibers (nanometer-scale fibers) embedded with multi-walled carbon nanotubes (MWCNTs). Carbon nanotubes are tubes of carbon with nanometer-scale diameters and MWCNTs consist of nested single-wall carbon nanotubes. Atrazine is a widely used pesticide with a long half-life and consumption of atrazine-containing water can result in severe health problems. However, previous […]

Microsystems & Nanoengineering, Published online: 13 January 2020; doi:10.1038/s41378-019-0110-1A reinvention of memory technology from Texas Instruments has enabled the creation of high-efficiency, high-quality resonators. Microscopic radio frequency (RF) resonators vibrate at stable frequencies, a property that can be used in tracking time, communicating, sensing, and imaging. Technological advances are demanding smaller, more power-efficient and cost-effective components, but traditional resonators are reaching their theoretical limits. Dana Weinstein and her team from the United […]

Microsystems & Nanoengineering, Published online: 13 January 2020; doi:10.1038/s41378-019-0117-7Electromechanical spinning enables the fabrication of highly graphitized carbon wires with diameters down to tens of nanometers. Graphitized carbon has a number of attractive properties for functional devices, and in wire-form can be used for strain, gas and temperature sensing, as well as for far-field thermal emitters. However, current fabrication processes for graphitized carbon wires are limited by their low yields and complexity. Now, a team led by Marc Madou from the University of […]

Microsystems & Nanoengineering, Published online: 30 December 2019; doi:10.1038/s41378-019-0116-8A new 3D fabrication process could greatly accelerate the manufacture of finely-detailed microelectronic devices for a plethora of applications. Additive manufacturing strategies such as 3D printing are becoming commonplace in many industries, but these are generally ill-suited for producing the tiny metallic structures required for microelectronic devices. Researchers led by Michael Cullinan at the University of Texas at Austin have now developed a powerful process for 3D printing metal […]

Microsystems & Nanoengineering, Published online: 16 December 2019; doi:10.1038/s41378-019-0114-xA nanostructure consisting of Ni-Co layered double hydroxide dendrites on a reduced graphene oxide shell offers a high specific capacity for energy devices. Transition metal layered double hydroxides are attractive electrode materials for energy storage devices. However, slow ionic diffusion and poor electrical conductivity limits their use. Now, an international team from India and Germany, led by Sumit Saxena, demonstrate the synthesis of Ni-Co layered double hydroxide dendrites grown […]

Microsystems & Nanoengineering, Published online: 16 December 2019; doi:10.1038/s41378-019-0105-yA micromechanical system (MEMS) has been developed that allows accurate measurement of acceleration at high-resolution levels. Commercially available gravimeters and seismometers can be used for high-resolution measurement of the earth’s acceleration, but they are typically very expensive and bulky. However, a team headed by Guo Qi Zhang at Delft University of Technology, Netherlands was able to design, simulate, fabricate and test a low-cost MEMS device with an integrated miniaturized […]