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A glucose biosensor based on deposition of glucose oxidase onto crystalline gold nanoparticle modified carbon nanotube electrode.
J Phys Chem B. 2009 Mar 12; 113(10):3190-4.JP

Abstract

A new amperometric biosensor, based on deposition of glucose oxidase (GOD) onto crystalline gold (Au) nanoparticle modified multiwalled carbon nanotube (MWNT) electrode, is presented. MWNTs have been synthesized by catalytic chemical vapor decomposition of acetylene over rare-earth-based AB2 (DyNi2) alloy hydride catalyst. Purified MWNTs have been decorated with nanocrystalline Au metal clusters using a simple chemical reduction method. The characterization of metal-decorated CNTs has been done using X-ray diffraction analysis, scanning electron microscopy, transmission electron microscopy (TEM), high-resolution TEM, and energy-dispersive X-ray analysis. Amperometric biosensor fabricated by depositing GOD over Nafion-solubilized Au-MWNT electrode retains its biocatalytic activity and offers fast and sensitive glucose quantification. The performance of the biosensor has been studied using cyclic voltammetry, amperometry, and hydrodynamic voltammetry, and the results have been discussed. The fabricated glucose biosensor exhibits a linear response up to 22 mM glucose and a detection limit of 20 microM.

Authors+Show Affiliations

Alternative Energy and Nanotechnology Laboratory, Nano Functional Materials Technology Centre (NFMTC), Department of Physics, Indian Institute of Technology Madras, Chennai-600036.No affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.

Language

eng

PubMed ID

19260716

Citation

Rakhi, Raghavan Baby, et al. "A Glucose Biosensor Based On Deposition of Glucose Oxidase Onto Crystalline Gold Nanoparticle Modified Carbon Nanotube Electrode." The Journal of Physical Chemistry. B, vol. 113, no. 10, 2009, pp. 3190-4.
Rakhi RB, Sethupathi K, Ramaprabhu S. A glucose biosensor based on deposition of glucose oxidase onto crystalline gold nanoparticle modified carbon nanotube electrode. J Phys Chem B. 2009;113(10):3190-4.
Rakhi, R. B., Sethupathi, K., & Ramaprabhu, S. (2009). A glucose biosensor based on deposition of glucose oxidase onto crystalline gold nanoparticle modified carbon nanotube electrode. The Journal of Physical Chemistry. B, 113(10), 3190-4. https://doi.org/10.1021/jp810235v
Rakhi RB, Sethupathi K, Ramaprabhu S. A Glucose Biosensor Based On Deposition of Glucose Oxidase Onto Crystalline Gold Nanoparticle Modified Carbon Nanotube Electrode. J Phys Chem B. 2009 Mar 12;113(10):3190-4. PubMed PMID: 19260716.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - A glucose biosensor based on deposition of glucose oxidase onto crystalline gold nanoparticle modified carbon nanotube electrode. AU - Rakhi,Raghavan Baby, AU - Sethupathi,Kanikrishnan, AU - Ramaprabhu,Sundara, PY - 2009/3/6/entrez PY - 2009/3/6/pubmed PY - 2009/9/12/medline SP - 3190 EP - 4 JF - The journal of physical chemistry. B JO - J Phys Chem B VL - 113 IS - 10 N2 - A new amperometric biosensor, based on deposition of glucose oxidase (GOD) onto crystalline gold (Au) nanoparticle modified multiwalled carbon nanotube (MWNT) electrode, is presented. MWNTs have been synthesized by catalytic chemical vapor decomposition of acetylene over rare-earth-based AB2 (DyNi2) alloy hydride catalyst. Purified MWNTs have been decorated with nanocrystalline Au metal clusters using a simple chemical reduction method. The characterization of metal-decorated CNTs has been done using X-ray diffraction analysis, scanning electron microscopy, transmission electron microscopy (TEM), high-resolution TEM, and energy-dispersive X-ray analysis. Amperometric biosensor fabricated by depositing GOD over Nafion-solubilized Au-MWNT electrode retains its biocatalytic activity and offers fast and sensitive glucose quantification. The performance of the biosensor has been studied using cyclic voltammetry, amperometry, and hydrodynamic voltammetry, and the results have been discussed. The fabricated glucose biosensor exhibits a linear response up to 22 mM glucose and a detection limit of 20 microM. SN - 1520-6106 UR - https://www.unboundmedicine.com/medline/citation/19260716/A_glucose_biosensor_based_on_deposition_of_glucose_oxidase_onto_crystalline_gold_nanoparticle_modified_carbon_nanotube_electrode_ L2 - https://doi.org/10.1021/jp810235v DB - PRIME DP - Unbound Medicine ER -