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Fabrication of glutathione photoelectrochemical biosensor using graphene-CdS nanocomposites.
Analyst. 2012 Aug 21; 137(16):3697-703.A

Abstract

A novel glutathione (GSH) photoelectrochemical biosensor was fabricated using the newly synthesized graphene-CdS (GR-CdS) nanocomposites. The GR-CdS nanocomposites were prepared by a fast, one-step, aqueous reaction. The as-prepared GR-CdS structure inherited the excellent electron transport of GR and facilitated the spatial separation of photo-generated charge carrier, therefore resulting in the enhanced photocurrent, and making it a promising candidate for developing photoelectrochemical biosensors. The proposed GSH sensor displays satisfactory analytical performance with an acceptable linear range from 0.01 to 1.5 mmol L(-1) with a detection limit of 0.003 mmol L(-1) at a signal-to-noise ratio of 3, and also shows an excellent specificity against anticancer drugs and can be successfully applied for GSH detection in real samples. The as-synthesized GR-CdS nanocomposites exhibited obviously enhanced photovoltaic properties, which could be extended to the detection of other enzymes and biomolecules, thus providing a promising platform for the development of photoelectrochemical biosensors.

Authors+Show Affiliations

State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, PR China.No affiliation info availableNo 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

22774001

Citation

Zhao, Xiaomei, et al. "Fabrication of Glutathione Photoelectrochemical Biosensor Using graphene-CdS Nanocomposites." The Analyst, vol. 137, no. 16, 2012, pp. 3697-703.
Zhao X, Zhou S, Shen Q, et al. Fabrication of glutathione photoelectrochemical biosensor using graphene-CdS nanocomposites. Analyst. 2012;137(16):3697-703.
Zhao, X., Zhou, S., Shen, Q., Jiang, L. P., & Zhu, J. J. (2012). Fabrication of glutathione photoelectrochemical biosensor using graphene-CdS nanocomposites. The Analyst, 137(16), 3697-703. https://doi.org/10.1039/c2an35658a
Zhao X, et al. Fabrication of Glutathione Photoelectrochemical Biosensor Using graphene-CdS Nanocomposites. Analyst. 2012 Aug 21;137(16):3697-703. PubMed PMID: 22774001.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Fabrication of glutathione photoelectrochemical biosensor using graphene-CdS nanocomposites. AU - Zhao,Xiaomei, AU - Zhou,Shiwei, AU - Shen,Qingming, AU - Jiang,Li-Ping, AU - Zhu,Jun-Jie, Y1 - 2012/07/09/ PY - 2012/7/10/entrez PY - 2012/7/10/pubmed PY - 2012/12/10/medline SP - 3697 EP - 703 JF - The Analyst JO - Analyst VL - 137 IS - 16 N2 - A novel glutathione (GSH) photoelectrochemical biosensor was fabricated using the newly synthesized graphene-CdS (GR-CdS) nanocomposites. The GR-CdS nanocomposites were prepared by a fast, one-step, aqueous reaction. The as-prepared GR-CdS structure inherited the excellent electron transport of GR and facilitated the spatial separation of photo-generated charge carrier, therefore resulting in the enhanced photocurrent, and making it a promising candidate for developing photoelectrochemical biosensors. The proposed GSH sensor displays satisfactory analytical performance with an acceptable linear range from 0.01 to 1.5 mmol L(-1) with a detection limit of 0.003 mmol L(-1) at a signal-to-noise ratio of 3, and also shows an excellent specificity against anticancer drugs and can be successfully applied for GSH detection in real samples. The as-synthesized GR-CdS nanocomposites exhibited obviously enhanced photovoltaic properties, which could be extended to the detection of other enzymes and biomolecules, thus providing a promising platform for the development of photoelectrochemical biosensors. SN - 1364-5528 UR - https://www.unboundmedicine.com/medline/citation/22774001/Fabrication_of_glutathione_photoelectrochemical_biosensor_using_graphene_CdS_nanocomposites_ L2 - https://doi.org/10.1039/c2an35658a DB - PRIME DP - Unbound Medicine ER -