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Electrochemical biosensors based on in situ grown carbon nanotubes on gold microelectrode array fabricated on glass substrate for glucose determination
A highly sensitive electrochemical sensor is reported for glucose detection using carbon nanotubes grown in situ at low temperatures on...
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Electrochemical determination of butylhydroxyanisole (BHA) using a carbon fiber microelectrode modified by electrodeposition of gold nanoparticles and poly-NiTSPc film
We present an approach on the electrodeposition of gold nanoparticles (AuNPs) on a carbon fiber microelectrode (CFME) followed by deposition of...
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Nanodiamond conjugated SARS-CoV-2 spike protein: electrochemical impedance immunosensing on a gold microelectrode
A promising immunosensing strategy in diagnosing SARS-CoV-2 is proposed using a 10-µm gap-sized gold interdigitated electrode (AuIDE) to target the...
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Polydopamine-assisted aptamer-carrying tetrahedral DNA microelectrode sensor for ultrasensitive electrochemical detection of exosomes
BackgroundExosomes are nanoscale extracellular vesicles (30–160 nm) with endosome origin secreted by almost all types of cells, which are considered...
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Protolysis studies and quantification of acids and bases in aqueous solutions by microelectrode voltammetry
Acid–base equilibria are generally studied and taught at universities using approaches and techniques that include the use of dyes,...
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Silver nano-reporter enables simple and ultrasensitive profiling of microRNAs on a nanoflower-like microelectrode array on glass
MicroRNAs (miRNAs) are small non-coding RNAs with ~ 22 nucleotides, playing important roles in the post-transcriptional regulation of gene...
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Electrochemical techniques to investigate adsorption and desorption behavior of fibrinogen on a gold surface
AbstractFibrinogen interactions with cathodically polarized gold surfaces were characterized by electrochemical methods. Electrochemical Quartz...
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Real-time monitoring of extracellular pH using a pH-potentiometric sensing SECM dual-microelectrode
Extracellular pH can indicate the variation in organelle function and cell state. It is important to measure extracellular pH (pHe) with a...
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Electrochemical Microbiosensor for Detecting COVID-19 in a Patient Sample Based on Gold Microcuboids Pattern
As continues increasing the COVID-19 infections, there is an urgent need for develo** fast, simple, selective, and accurate COVID-19 biosensors. A...
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Electrochemical fabrication of poly(l-alanine)-gold nanoparticle nanocomposite-modified electrode: application for determination and mechanism of antipsychotic drug olanzapine
This work presents a new electrochemical sensor based on poly( l -alanine) ( l- Ala) (as a conducting polymer), and gold nanoparticles (AuNPs) coated...
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Microneedle-based nanoporous gold electrochemical sensor for real-time catecholamine detection
Dopamine (DA), epinephrine (EP), and norepinephrine (NEP) are the main catecholamine of clinical interest, as they play crucial roles in the...
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Rapid and Ultrasensitive Detection of Staphylococcus aureus Using a Gold-Interdigitated Single-Wave-Shaped Electrode (Au-ISWE) Electrochemical Biosensor
Staphylococcus aureus ( S. aureus ), a bacterium that causes staphylococcal food poisoning, is a Gram-positive human pathogen commonly found in the...
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A novel tyrosine electrochemical sensor based on poly 3,4-ethylene-dioxythiophene and gold nanoparticles
The amino acid tyrosine serves as a crucial precursor for neurotransmitters, playing a pivotal role in maintaining nitrogen balance within the human...
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A modified Prussian blue biosensor with improved stability based on the use of self-assembled monolayers and polydopamine for quantitative L-glutamate detection
A miniature L-glutamate (L-Glu) biosensor is described based on Prussian blue (PB) modification with improved stability by using self-assembled...
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A gold coated polystyrene ring microarray formed by two-step patterning: construction of an advanced microelectrode for voltammetric sensing
A two-step patterning process was developed based on nanosphere lithography and plasma etching to fabricate an array of electrodes with two different...
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Passivating reactions at a microdisk electrode as a model of passivation at a microparticle: theory and experiment
We have described the use of a microelectrode to simulate a passivating reaction taking place at a micro or nanoparticle. Reaction at the...
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Highly Sensitive Electrochemical Immunosensing for Listeria Monocytogenes Based on 3,4,9,10-Perylene Tetracarboxylic Acid/ Graphene Ribbons as a Sensing Platform and Ferrocene/Gold Nanoparticles as an Amplifier
As a gram-positive foodborne pathogen, Listeria monocytogenes (LM) can cause many serious diseases to the human health coupled with high mortality...
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Voltammetric Method for Determination of Glutathione on a Gold-Carbon-Containing Electrode
AbstractGlutathione (GSH) is one of the most important thiol-containing antioxidants involved in various biochemical processes in the human body....
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Sensitive immunoassay of cardiac troponin I using an optimized microelectrode array in a novel integrated microfluidic electrochemical device
A sensitive and portable microfluidic electrochemical array device (μFED) was developed for the immunoassay of trace amounts of human cardiac...
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Assessment of pulsed dielectrophoretic-field flow fractionation separation coupled with fibre-optic detection on a lab-on-chip as a technique to separate similar bacteria cells
This study addresses the challenge of separating bacteria with similar structures such as Escherichia coli and Aeromonas hydrophila . This approach...
