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Glucose biosensor based on electrodeposition of platinum nanoparticles onto carbon nanotubes and immobilizing enzyme with chitosan-SiO(2) sol-gel.
Biosens Bioelectron. 2008 Feb 28; 23(7):1010-6.BB

Abstract

A novel amperometric biosensor, based on electrodeposition of platinum nanoparticles onto multi-walled carbon nanotube (MWNTs) and immobilizing enzyme with chitosan-SiO(2) sol-gel, is presented in this article. MWNTs were cast on the glass carbon (GC) substrate directly. An extra Nafion coating was used to eliminate common interferents such as acetaminophen and ascorbic acids. The morphologies and electrochemical performance of the modified electrodes have been investigated by scanning electron microscopy (SEM) and amperometric methods, respectively. The synergistic action of Pt and MWNTs and the biocompatibility of chitosan-SiO(2) sol-gel made the biosensor have excellent electrocatalytic activity and high stability. The resulting biosensor exhibits good response performance to glucose with a wide linear range from 1 microM to 23 mM and a low detection limit 1 microM. The biosensor also shows a short response time (within 5s), and a high sensitivity (58.9 microAm M(-1)cm(-2)). In addition, effects of pH value, applied potential, rotating rate, electrode construction and electroactive interferents on the amperometric response of the sensor were investigated and discussed in detail.

Authors+Show Affiliations

Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

18054479

Citation

Zou, Yongjin, et al. "Glucose Biosensor Based On Electrodeposition of Platinum Nanoparticles Onto Carbon Nanotubes and Immobilizing Enzyme With chitosan-SiO(2) Sol-gel." Biosensors & Bioelectronics, vol. 23, no. 7, 2008, pp. 1010-6.
Zou Y, Xiang C, Sun LX, et al. Glucose biosensor based on electrodeposition of platinum nanoparticles onto carbon nanotubes and immobilizing enzyme with chitosan-SiO(2) sol-gel. Biosens Bioelectron. 2008;23(7):1010-6.
Zou, Y., Xiang, C., Sun, L. X., & Xu, F. (2008). Glucose biosensor based on electrodeposition of platinum nanoparticles onto carbon nanotubes and immobilizing enzyme with chitosan-SiO(2) sol-gel. Biosensors & Bioelectronics, 23(7), 1010-6.
Zou Y, et al. Glucose Biosensor Based On Electrodeposition of Platinum Nanoparticles Onto Carbon Nanotubes and Immobilizing Enzyme With chitosan-SiO(2) Sol-gel. Biosens Bioelectron. 2008 Feb 28;23(7):1010-6. PubMed PMID: 18054479.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Glucose biosensor based on electrodeposition of platinum nanoparticles onto carbon nanotubes and immobilizing enzyme with chitosan-SiO(2) sol-gel. AU - Zou,Yongjin, AU - Xiang,Cuili, AU - Sun,Li-Xian, AU - Xu,Fen, Y1 - 2007/10/25/ PY - 2007/07/06/received PY - 2007/10/10/revised PY - 2007/10/12/accepted PY - 2007/12/7/pubmed PY - 2008/5/7/medline PY - 2007/12/7/entrez SP - 1010 EP - 6 JF - Biosensors & bioelectronics JO - Biosens Bioelectron VL - 23 IS - 7 N2 - A novel amperometric biosensor, based on electrodeposition of platinum nanoparticles onto multi-walled carbon nanotube (MWNTs) and immobilizing enzyme with chitosan-SiO(2) sol-gel, is presented in this article. MWNTs were cast on the glass carbon (GC) substrate directly. An extra Nafion coating was used to eliminate common interferents such as acetaminophen and ascorbic acids. The morphologies and electrochemical performance of the modified electrodes have been investigated by scanning electron microscopy (SEM) and amperometric methods, respectively. The synergistic action of Pt and MWNTs and the biocompatibility of chitosan-SiO(2) sol-gel made the biosensor have excellent electrocatalytic activity and high stability. The resulting biosensor exhibits good response performance to glucose with a wide linear range from 1 microM to 23 mM and a low detection limit 1 microM. The biosensor also shows a short response time (within 5s), and a high sensitivity (58.9 microAm M(-1)cm(-2)). In addition, effects of pH value, applied potential, rotating rate, electrode construction and electroactive interferents on the amperometric response of the sensor were investigated and discussed in detail. SN - 0956-5663 UR - https://www.unboundmedicine.com/medline/citation/18054479/Glucose_biosensor_based_on_electrodeposition_of_platinum_nanoparticles_onto_carbon_nanotubes_and_immobilizing_enzyme_with_chitosan_SiO_2__sol_gel_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0956-5663(07)00435-6 DB - PRIME DP - Unbound Medicine ER -