Immobilization of Ni–Pd/core–shell nanoparticles through thermal polymerization of acrylamide on glassy carbon electrode for highly stable and sensitive glutamate detection

Yu, Hua-Zhong; Ma, Zongyuan; Wu, Zhaoyang

doi:10.1016/j.aca.2015.09.005

Cited by 19 publications

(10 citation statements)

References 31 publications

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“…The most common approach has been to replace glutamate oxidase with glutamate dehydrogenase. [61][62][63] Wu et al recently discovered that ferredoxin-dependent glutamate synthase also has bioelectrocatalyst properties and can be tuned to either catalyze glutamate synthesis or glutamate oxidation by careful selection of redox mediators. 64 This discovery is notable for a new generation of glutamate biosensor design because (1) it overcomes the oxygen sensitivity seen in previous generations and (2) since the redox-active region is close to the surface of the enzyme, it provides a method that allows for direct electron transfer between the enzyme and the electrode surface.…”

Section: Novel Technical Advancements For Glutamate Biosensorsmentioning

confidence: 99%

Frontiers in electrochemical sensors for neurotransmitter detection: towards measuring neurotransmitters as chemical diagnostics for brain disorders

Buchanan

Witt

et al. 2019

Anal. Methods

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Section: Novel Technical Advancements For Glutamate Biosensorsmentioning

confidence: 99%

Frontiers in electrochemical sensors for neurotransmitter detection: towards measuring neurotransmitters as chemical diagnostics for brain disorders

Buchanan

Witt

et al. 2019

Anal. Methods

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“…This sensitive sensor was constructed for glutamate detection using thermal polymerization of acrylamide (AM) to immobilize Ni-Pd/core-shell NPs. For immobilizing NPs was used from polyacrylamide (PAM) film as a matrix, whereas the synthesized Ni-Pd/core-shell NPs act as electrocatalysts (Figure 5) [156].…”

Section: Enzyme Sensorsmentioning

confidence: 99%

Latest Trends in Electrochemical Sensors for Neurotransmitters: A Review

Tavakolian-Ardakani

Hosu

Cristea

et al. 2019

Sensors

117

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Neurotransmitters are endogenous chemical messengers which play an important role in many of the brain functions, abnormal levels being correlated with physical, psychotic and neurodegenerative diseases such as Alzheimer's, Parkinson's, and Huntington's disease. Therefore, their sensitive and robust detection is of great clinical significance. Electrochemical methods have been intensively used in the last decades for neurotransmitter detection, outclassing more complicated analytical techniques such as conventional spectrophotometry, chromatography, fluorescence, flow injection, and capillary electrophoresis. In this manuscript, the most successful and promising electrochemical enzyme-free and enzymatic sensors for neurotransmitter detection are reviewed. Focusing on the activity of worldwide researchers mainly during the last ten years (2010–2019), without pretending to be exhaustive, we present an overview of the progress made in sensing strategies during this time. Particular emphasis is placed on nanostructured-based sensors, which show a substantial improvement of the analytical performances. This review also examines the progress made in biosensors for neurotransmitter measurements in vitro, in vivo and ex vivo.

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“…CV measurements of 1 mM nicotinamide adenine dinucleotide (NADH) were conducted using the CNT‐modified electrode in phosphate‐buffer solution (PBS; pH 7.4, 100 mM) (Figure a). NADH is a product of various dehydrogenases, and functional electrodes that electrolyze NADH can be used for constructing biosensors . The cyclic voltammograms of NADH showed an anodic peak potential ( Ep ) at +0.65 V for a bare Au electrode whereas Ep was shifted negatively to +0.34 V for the CNT‐modified electrode owing to the CNTs on the electrode surface.…”

Section: Figurementioning

confidence: 99%

Carbon Nanotube Immobilized Electrode Using Amphiphilic Phospholipid Polymer with Anti‐fouling and Dispersion Property for Electrochemical Analysis

Sato

Konno

2020

Electroanalysis

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A carbon nanotube (CNT)‐modified electrode was fabricated by dropping a dispersion of multi‐walled CNTs in water‐soluble and amphiphilic phospholipid polymer with both dispersing ability and anti‐biofouling property onto a Au electrode. A poly(2‐methacryloyloxyethyl phosphorylcholine‐co‐n‐butyl methacrylate) (PMB) composed from 50 mol% of 2‐methacryloxylethyl phosphorylcholine and 50 mol% of n‐butyl methacrylate (PMB50) was used as dispersing reagent for CNTs. The dispersion of water‐insoluble material by PMB50 and its antifouling effects in electrochemical analysis were investigated. The CNT‐modified electrode showed an anodic peak potential that was shifted negatively and an increase in the current value for the electrolytic oxidation of nicotinamide adenine dinucleotide. In addition, the charge on PMB50 did not inhibit the electrochemical reaction of the redox compounds K3[Fe(CN)6], [Ru(NH3)6]Cl3, and hydroxymethylferrocene. Cyclic voltammetry of K3[Fe(CN)6] in 4 % bovine serum albumin (BSA) using a bare Au electrode, the anodic peak current was reduced to 47 % of that without BSA. In contrast, the antifouling effect of the PMB50‐coated electrode meant that the current was only reduced to 70 % of that without BSA.

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Immobilization of Ni–Pd/core–shell nanoparticles through thermal polymerization of acrylamide on glassy carbon electrode for highly stable and sensitive glutamate detection

Cited by 19 publications

References 31 publications

Frontiers in electrochemical sensors for neurotransmitter detection: towards measuring neurotransmitters as chemical diagnostics for brain disorders

Frontiers in electrochemical sensors for neurotransmitter detection: towards measuring neurotransmitters as chemical diagnostics for brain disorders

Latest Trends in Electrochemical Sensors for Neurotransmitters: A Review

Carbon Nanotube Immobilized Electrode Using Amphiphilic Phospholipid Polymer with Anti‐fouling and Dispersion Property for Electrochemical Analysis

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