25 papers · ranked by Valyu relevance
Nadiah Alyamni, Jandro L. Abot, Alexander G. Zestos
Voltammetry is a powerful electroanalytical tool that makes fast, real-time measurements of neurotransmitters and other molecules. Electroanalytical methods like cyclic, pulse, and stripping voltammetry are useful for qualitative and quantitative examination. Neurochemical sensing has been enhanced using carbon-based…
Nurul Akmaliah Dzulkurnain, Marliyana Mokhtar, Jahwarhar Izuan Abdul Rashid, Victor Feizal Knight + 5 more
Conducting polymers have been widely used in electrochemical sensors as receptors of the sensing signal’s analytes and transducers. Polypyrrole (PPy) conducting polymers are highlighted due to their good electrical conductive properties, ease in preparation, and flexibility of surface characteristics. The objective of…
Shahbaz Ahmad, M. Egilmez
This report presents some of the key laboratory electrochemical battery testing methods that are used in fuel cell research. Methods such as voltammetry, chronoamperometry, chronopotentiometry, and electrochemical impedance spectroscopy are of major importance. All the electrochemical corrosion tests are performed…
Kevin A. White, Geoffrey Mulberry, Brian N. Kim
Large-scale microelectrode arrays offers enhanced spatiotemporal resolution in electrophysiology studies.. In this paper, we discuss the design and performance of an electrochemical detector array which is capable of 1024-ch parallel cyclic voltammetry (CV) as well as other electrochemical measurements. The…
Benjamin Hoar, Weitong Zhang, Shuangning Xu, Rana Deeba + 3 more
For decades, employing cyclic voltammetry for mechanistic investigation demands manual inspection of voltammograms. Here we report a deep-learning-based algorithm that automatically analyzes cyclic voltammograms and designates a electrochemical probable mechanism among five of the most common ones in homogenous…
David Herrmann, Patrick Hodapp, Martin Starman, Pei-Chi Huang + 16 more
Analytical data in chemistry and other disciplines is usually generated in different formats and lacks common data and metadata standards that are necessary for a FAIR handling of research data. In the work presented herein, we describe a workflow that uses non-standardized, in some cases proprietary data formats from…
Authors not listed
Conventional electrochemical devices require two electrodes, generally referred as anode and cathode, to maintain charge balance in the electrolyte. While charge imbalance near interfaces and in nano-confinements are well known, macroscopic charge accumulation has not been explored yet. Here, we provide experimental…
Dulce M. Morales, Marcel Risch
Discovery of electrocatalytic materials for high-performance energy conversion and storage applications relies on the adequate characterization of their intrinsic activity, which is currently hindered by the dearth of a protocol for consistent and precise determination of double layer capacitance (CDL). Herein, we…
Leonardo X. Espín, Anders J. Asp, James K. Trevathan, Kip A. Ludwig + 1 more
Modern techniques for estimating basal levels of electroactive neurotransmitters rely on the measurement of oxidative charges. This requires time integration of oxidation currents at certain intervals. Unfortunately, the selection of integration intervals relies on ad-hoc visual identification of peaks on the oxidation…
Shuaishuai Meng, Yaming Liu, Li Wang, Xixi Ji + 4 more
'Tingting Zheng' 'Jie Yu' 'Huanhuan Feng'] Many diseases are closely related to abnormal concentrations of ascorbic acid (AA), dopamine (DA), and uric acid (UA). Therefore, the detection of these small molecules is significant for monitoring life metabolism and healthy states. Electrochemical detection has been widely…
Isabella Schapira, Lillian Russo-Savage, Terdha Narla, Maggie O'Neill + 3 more
Despite the fact that tryptophan is an essential amino acid that humans typically obtain through diet, there are several interesting tryptophan dynamics at play in the body. Quantifying and understanding these dynamics are crucial in studies of depression, autism spectrum disorder, and other disorders that involve…
Keyvan Malaie
The methods of Nicholson and Shain and Randles-Ševcík are the paradigms of voltammetry of redox species. However, as they were originally developed for aqueousredox couples, they cannot be directly applied to solid redox films such as those of battery materials. Herein, for the first time, we present a cyclic…
Laura Gonzalez-Macia, Yunpeng Li, Kaijia Zhang, Estefania Nunez-Bajo + 7 more
Rapid detection of pathogens at the point-of-need is crucial for preventing the spread of human, animal and plant diseases which can have devastating consequences both on the lives and livelihood of billions of people. Colorimetric, lateral flow assays consisting of a nitrocellulose membrane, are the preferred format…
Dallin Barton, Dan Thien Nguyen, Daniel E. Perea, Kelsey A. Stoerzinger + 4 more
'Kelsey A. Stoerzinger' 'Reyna Morales Lumagui' 'Sten Lambeets' 'Mark Wirth' 'Arun Devaraj'] Hydrogen embrittlement mechanisms of steels have been studied for several decades. Understanding hydrogen diffusion behavior in steels is crucial towards both developing predictive models for hydrogen embrittlement and…
Md. Shadat Hossain, Md. Habibur Rahman, Md. Tariqur Rahaman Bhuiyan Mamun, Md. Kawcher Alam + 1 more
Heavy metal contamination in wastewater poses serious environmental and health risks, for which highly selective and sensitive detection methods are required. Voltametric techniques, such as DPASV, SWASV, ASV, CV, and DPV, offer simultaneous detection of multiple elements with quick analysis, accuracy and exceptional…
Teng Zhao, Shuangliang Zhao, Shenggao Zhou, Zhenli Xu
Cyclic voltammetry (CV) is a powerful technique for characterizing the electrochemical properties of electrochemical devices. During charging-discharging cycles, the thermal effect can have a profound impact on its performance. However, existing theoretical models cannot clarify such intrinsic mechanism and often give…
Nicolette Driscoll, Marc-Joseph Antonini, Taylor M. Cannon, Pema Maretich + 11 more
Recording and modulation of neuronal activity enables the study of brain function in health and disease. While translational neuroscience relies on electrical recording and modulation techniques, mechanistic studies in rodent models leverage genetic precision of optical methods, such as optogenetics and imaging of…
Ridho Asra, Ana P.R. Povinelli, Gabriel Zazeri, Alan M. Jones
In this article we introduce a proof of concept strategy: Computational Predictive and Electrochemical Detection of Metabolites (CP-EDM) to expedite the discovery of drug metabolites. The use of a bioactive natural product, piperine, that has a well curated metabolite profile but has an unpredictable computational…
Yaniv Shlosberg, Ailun Huang, Tünde N. Tóth, Richard B. Kaner
In recent years, extensive scientific efforts have been conducted to develop clean bio-energy technologies. A promising approach that has been under development for more than a hundred years is the microbial fuel cell (MFC) which utilizes exo-electrogenic bacteria as an electron source in a bio-electrochemical cell.…
Bhavna Gupta, Brandon Kepros, Jann B. Landgraf, Michael F. Becker + 3 more
Neurochemical sensing with implantable devices has gained remarkable attention over the last few decades. A promising area of this research is the progress of novel electrodes as electrochemical tools for neurotransmitter detection in the brain. The boron-doped diamond (BDD) electrode is one such candidate that…
Bergoi Ibarlucea, Arnau Pérez Roig, D. K. Belyaev, Larysa Baraban + 1 more
'Gianaurelio Cuniberti'] We demonstrate a flexible sensor for ascorbic acid detection in sweat based on singlestep modified gold microelectrodes. The modification consists on the electrodeposition of alginate membrane with trapped CuO nanoparticles on top of the electrodes. The electrodes are fabricated at a thin…
Filippo Franceschini, Catarina Fernandes, Koen Schouteden, Jon Ustarroz + 2 more
Microfabricated Platforms Authors: ['Filippo Franceschini' 'Catarina Fernandes' 'Koen Schouteden' 'Jon Ustarroz' 'Jean‐Pierre Locquet' 'Irene Taurino'] Glucose oxidation is a fundamental reaction in biosensing and energy conversion, and anodized copper electrodes have emerged as promising catalysts for its enhancement.…
Mihaela Buleandră, Lavinia Georgiana Voica, Dana Elena Popa, Irinel Adriana Badea + 3 more
'Irinel Adriana Badea' 'Emilia Elena Iorgulescu' 'Mihaela Carmen Cheregi' 'Fujun Li'] This paper summarizes the main findings of a study which aimed to examine the electrochemical oxidation of homovanillic acid (HVA), the final metabolite of dopamine. A pencil graphite electrode (PGE) was used as working electrode and…
Max Yates, Jenny Ji, Steven Yee, Hyongsok T. Soh
Square-wave voltammetry (SWV) is widely used for electrochemical biosensing because it enables sensitive, temporally resolved measurement of redox reporter signals. However, automated quantification of SWV signal remains challenging for long duration and in vivo measurements, where voltammograms can exhibit changing…
Steven Linfield, Sylwester Gawinkowski, Wojciech Nogala
Recently, shot noise has been shown to be an inherent part of all charge transfer processes, leading to a practical limit of quantification of 2100 electrons (~0.34 fC) (Curr. Opin. Electrochem. 2020, 22, 170177). Attainable limits of quantification are made much larger by greater background currents and insufficient…