NDLI: The fabrication and characterization of Cu-nanoparticle immobilization on a hybrid chitosan derivative-carbon support as a novel electrochemical sensor: application for the sensitive enzymeless oxidation of glucose and reduction of hydrogen peroxide

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Front cover

Contents list

Synthetically designed peptide-based biomaterials with stimuli-responsive and membrane-active properties for biomedical applications

Polymer-coated spherical mesoporous silica for pH-controlled delivery of insulin

Promoting cell adhesion on slippery phosphorylcholine hydrogel surfaces

A novel aptameric nanobiosensor based on the self-assembled DNA–MoS₂ nanosheet architecture for biomolecule detection

Self-focusing Au@SiO₂ nanorods with rhodamine 6G as highly sensitive SERS substrate for carcinoembryonic antigen detection

Synthesis of boronic acid-functionalized molecularly imprinted silica nanoparticles for glycoprotein recognition and enrichment

Chemically tunable cationic polymer-bonded magnetic nanoparticles for gene magnetofection

Stimuli-responsive electrospun nanofibers from poly(N-isopropylacrylamide)-co-poly(acrylic acid) copolymer and polyurethane

Injectable and biodegradable supramolecular hydrogels formed by nucleobase-terminated poly(ethylene oxide)s and α-cyclodextrin

Chemical characterisation and fabrication of chitosan–silica hybrid scaffolds with 3-glycidoxypropyl trimethoxysilane

Polyurethane/β-cyclodextrin/ciprofloxacin composite films for possible medical coatings with antibacterial properties

A silicon-based antibacterial material featuring robust and high antibacterial activity

Swarming carbon dots for folic acid mediated delivery of doxorubicin and biological imaging

The fabrication and characterization of Cu-nanoparticle immobilization on a hybrid chitosan derivative-carbon support as a novel electrochemical sensor: application for the sensitive enzymeless oxidation of glucose and reduction of hydrogen peroxide

Functionalized large pore mesoporous silica nanoparticles for gene delivery featuring controlled release and co-delivery

Glucomannan-poly(N-vinyl pyrrolidinone) bicomponent hydrogels for wound healing

Preparation of core–shell Fe₃O₄@poly(dopamine) magnetic nanoparticles for biosensor construction

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Journal of Materials Chemistry B Vol - 2 Issue - 5

Journal of Materials Chemistry B Vol -1

The fabrication and characterization of Cu-nanoparticle immobilization on a hybrid chitosan derivative-carbon support as a novel electrochemical sensor: application for the sensitive enzymeless oxidation of glucose and reduction of hydrogen peroxide

Content Provider	Royal Society of Chemistry (RSC)
Author	Dorostkar, N. Martínez-Huerta, M. Victoria Fierro, J. L. G. Ensafi, Ali A. Ghiaci, M. Jafari-Asl, M.
Copyright Year	2014
Abstract	New hybrid chitosan derivatives (chitosan (Chit)), amine group grafted chitosan (N-Chit), and thiol group grafted chitosan (S-Chit) modified-carbon (carbon nanotubes or graphite) were prepared and used as supports for Cu-nanoparticles. The synthesized materials were characterized with different methods such as transmission electron microscopy, Brunauer–Emmett–Teller and cyclic voltammetry. The electrocatalytic effect of the nanohybrid was investigated in the reduction of hydrogen peroxide and the oxidation of glucose. It was found that the Cu nanoparticles decorate on the modified chitosan–CNT (Cu@M-Chit–CNT) exhibit a remarkable catalytic performance for H2O2 reduction and glucose oxidation. Hydrodynamic amperometry was used for the electrochemical determination of H2O2 and glucose. The linear range for H2O2 was from 0.1 to 1000 μmol L−1 with a detection limit of 0.025 μmol L−1, whereas the linear range for glucose was from 0.5 to 1000 μmol L−1 with a detection limit of 0.05 μmol L−1. In addition, Cu@N-Chit–CNT/GCE and Cu@Chit–CNT/GCE showed a good selectivity for H2O2 and glucose detection in the presence of dopamine, ascorbic acid and uric acid. The kinetic parameters such as the electron transfer coefficient and the catalytic reaction rate constant were also determined for glucose and H2O2. Finally, the modified electrode is the most sensitive probe ever reported and can be used to achieve the real-time quantitative detection of H2O2 and glucose for biological applications.
Starting Page	706
Ending Page	717
Page Count	12
File Format	HTM / HTML PDF
ISSN	2050750X
Volume Number	2
Issue Number	6
Journal	Journal of Materials Chemistry B
DOI	10.1039/c3tb21434f
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Emmett Chitosan Thiol Carbon nanotube Graphite Transmission electron microscopy Cyclic voltammetry Peroxide Glucose Hydrogen peroxide Amperometry Electrochemistry Dopamine Carboxylic acid Heat transfer coefficient Reaction rate constant Electrode
Content Type	Text
Resource Type	Article
Subject	Chemistry Medicine Materials Science Biomedical Engineering

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