Results 101 to 110 of about 5,297,465 (335)

An Electrochemical-Based Point-of-Care Testing Methodology for Uric Acid Measurement

Journal of Analytical Methods in Chemistry, 2022
Point-of-care technology (POCT) is an important method in clinical testing in the future, which can achieve the purpose of rapid analysis. In this work, we assembled an electrochemical POC sensor for uric acid (UA) by surface modification of a screen ...
Yuetong Zhao, Xia Song
doaj   +1 more source

Basic obstacle for electrical spin-injection from a ferromagnetic metal into a diffusive semiconductor [PDF]

, 2000
We have calculated the spin-polarization effects of a current in a two dimensional electron gas which is contacted by two ferromagnetic metals. In the purely diffusive regime, the current may indeed be spin-polarized.
A. G. Aronov, A. G. Aronov, A. T. Filip, B. J. van Wees, D. Ferrand, D. Hägele, E. H. Rhoderick, F. G. Monzon, F. J. Jedema, G. A. Prinz, G. Schmidt, H. X. Tang, J. M. Kikkawa, J.-H. Park, K. P. Kämper, L. W. Molenkamp, P. C. van Son, P. R. Hammar, R. A. de Groot, R. Fiederling, S. Datta, T. Valet, W. Y. Lee, Y. Ohno   +23 more
core   +3 more sources

Electrochemical protein biosensors for disease marker detection: progress and opportunities

Microsystems & Nanoengineering
The development of artificial intelligence-enabled medical health care has created both opportunities and challenges for next-generation biosensor technology. Proteins are extensively used as biological macromolecular markers in disease diagnosis and the
Lanpeng Guo, Yunong Zhao, Qingshuang Huang, Jing Huang, Yanbing Tao, Jianjun Chen, Huayao Li, Huan Liu   +7 more
semanticscholar   +1 more source

Understanding and Optimizing Li Substitution in P2‐Type Sodium Layered Oxides for Sodium‐Ion Batteries

Advanced Functional Materials, EarlyView.
This work explores Li‐substituted P2 layered oxides for Na‐ion batteries by crystallographic and electrochemical studies. The effect of lithium on superstructure orderings, on phase transitions during synthesis and electrochemical cycling and on the interplay of O‐ versus TM‐redox is revealed via various advanced techniques, including semi‐simultaneous 
Mingfeng Xu, Giovanni Gammaitoni, Michael Häfner, Eduardo Villalobos‐Portillo, Carlo Marini, Matteo Bianchini   +5 more
wiley   +1 more source

Differential Cyclic Voltammetry - a Novel Technique for Selective and Simultaneous Detection using Redox Cycling Based Sensors [PDF]

, 2010
Redox cycling (RC) is an effect that is used to amplify electrochemical signals. However, traditional techniques such as cyclic voltammetry (CV) do not provide clear insight for a mixture of multiple redox couples while RC is applied.
Berg, A. van den, Megen, M.J.J, Odijk, M., Olthuis, W., Wiedemair, J.   +4 more
core   +7 more sources

Probing charge and heat current noise by frequency-dependent temperature and potential fluctuations [PDF]

, 2017
The energetic properties of electron transport in mesoscopic and nanoscale conductors is of large current interest. Here we theoretically investigate the possibility of probing fluctuations of charge and heat currents as well as their mixed correlations ...
Dashti, Nastaran, Misiorny, Maciej, Samuelsson, Peter, Splettstoesser, Janine   +3 more
core   +2 more sources

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

Application of Electrospun Nanofiber-Based Electrochemical Sensors in Food Safety

Molecules
Food safety significantly impacts public health and social welfare. Recently, issues such as heavy metal ions, drug residues, food additives, and microbial contamination in food have become increasingly prominent.
Changdong Xu, Jianfeng Tan, Yingru Li
doaj   +1 more source

Enhancing Low‐Temperature Performance of Sodium‐Ion Batteries via Anion‐Solvent Interactions

Advanced Functional Materials, EarlyView.
DOL is introduced into electrolytes as a co‐solvent, increasing slat solubility, ion conductivity, and the de‐solvent process, and forming an anion‐rich solvent shell due to its high interaction with anion. With the above virtues, the batteries using this electrolyte exhibit excellent cycling stability at low temperatures. Abstract Sodium‐ion batteries
Cheng Zheng, Qian Yao, Yanan Sun, Hongyu Lv, Zhongchao Bai, Guoliang Zhang, Nana Wang, Jian Yang   +7 more
wiley   +1 more source

Review of Electrochemical DNA Biosensors for Detecting Food Borne Pathogens

Sensors, 2019
The vital importance of rapid and accurate detection of food borne pathogens has driven the development of biosensor to prevent food borne illness outbreaks.
Qiaoyun Wu, Yunzhe Zhang, Qian Yang, Ning Yuan, Wei Zhang   +4 more
doaj   +1 more source