Glucose Biosensing Using Glassy Carbon Electrode Modified with Polyhydroxy-C60, Glucose Oxidase and Ionic-liquid

Tian, Yang; Yang, Xiu-yu; Zhang, Yushuai; Xiao, Bao-Lin; Hong, Jun

doi:10.3233/bme-141031

Cited by 4 publications

(2 citation statements)

References 28 publications

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“…In contrast, the direct carbonization of conventional aprotic ILs without any cross-linkable functional groups under inert and ambient pressure did not afford carbon. Great efforts have been devoted to address this issue, mainly focused on the following two methods: The first method, to develop alternative IL precursors such as protic ILs, was developed by Watanabe et al ,− The reported protic ILs are versatile precursors that are widely available, inexpensive, and easy to synthesize. More importantly, they can produce carbons whose properties can be easily tuned by the appropriate choice of constituting acids and bases.…”

Section: Applications Of Nanoconfined Ionic Liquidsmentioning

confidence: 99%

Nanoconfined Ionic Liquids

et al. 2016

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Ionic liquids (ILs) have been widely investigated as novel solvents, electrolytes, and soft functional materials. Nevertheless, the widespread applications of ILs in most cases have been hampered by their liquid state. The confinement of ILs into nanoporous hosts is a simple but versatile strategy to overcome this problem. Nanoconfined ILs constitute a new class of composites with the intrinsic chemistries of ILs and the original functions of solid matrices. The interplay between these two components, particularly the confinement effect and the interactions between ILs and pore walls, further endows ILs with significantly distinct physicochemical properties in the restricted space compared to the corresponding bulk systems. The aim of this article is to provide a comprehensive review of nanoconfined ILs. After a brief introduction of bulk ILs, the synthetic strategies and investigation methods for nanoconfined ILs are documented. The local structure and physicochemical properties of ILs in diverse porous hosts are summarized in the next sections. The final section highlights the potential applications of nanoconfined ILs in diverse fields, including catalysis, gas capture and separation, ionogels, supercapacitors, carbonization, and lubrication. Further research directions and perspectives on this topic are also provided in the conclusion.

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Section: Applications Of Nanoconfined Ionic Liquidsmentioning

confidence: 99%

Nanoconfined Ionic Liquids

et al. 2016

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“…The ionic liquid (IL) 1-butyl-3-methyl imidazolium tetrafluoroborate has been shown to have high thermal stability and high conductivity [ 31 ]. Noncovalent linking between GDH and fMWCNTs-mPEG in an IL membrane can be performed and may help to preserve the stability of GDH’s structure and function [ 32 ]. Nafion solutions have excellent ionic conductivity, and are often used in catalyst coating and carriers, has excellent film-forming ability, has a wide range of applications in proton conduction, and helps researchers to improve the stability of nanomaterial-modified electrodes [ 33 ].…”

Section: Introductionmentioning

confidence: 99%

Direct Electrochemistry of Glucose Dehydrogenase-Functionalized Polymers on a Modified Glassy Carbon Electrode and Its Molecular Recognition of Glucose

Yang

Weishi

Qianqian

et al. 2023

IJMS

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A glucose biosensor was layer-by-layer assembled on a modified glassy carbon electrode (GCE) from a nanocomposite of NAD(P)+-dependent glucose dehydrogenase, aminated polyethylene glycol (mPEG), carboxylic acid-functionalized multi-wall carbon nanotubes (fMWCNTs), and ionic liquid (IL) composite functional polymers. The electrochemical electrode was denoted as NF/IL/GDH/mPEG-fMWCNTs/GCE. The composite polymer membranes were characterized by cyclic voltammetry, ultraviolet-visible spectrophotometry, electrochemical impedance spectroscopy, scanning electron microscopy, and transmission electron microscopy. The cyclic voltammogram of the modified electrode had a pair of well-defined quasi-reversible redox peaks with a formal potential of −61 mV (vs. Ag/AgCl) at a scan rate of 0.05 V s−1. The heterogeneous electron transfer constant (ks) of GDH on the composite functional polymer-modified GCE was 6.5 s−1. The biosensor could sensitively recognize and detect glucose linearly from 0.8 to 100 µM with a detection limit down to 0.46 μM (S/N = 3) and a sensitivity of 29.1 nA μM−1. The apparent Michaelis–Menten constant (Kmapp) of the modified electrode was 0.21 mM. The constructed electrochemical sensor was compared with the high-performance liquid chromatography method for the determination of glucose in commercially available glucose injections. The results demonstrated that the sensor was highly accurate and could be used for the rapid and quantitative determination of glucose concentration.

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