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Growth of coral-like PtAu-MnO2 binary nanocomposites on free-standing graphene paper for flexible nonenzymatic glucose sensors.
Biosens Bioelectron. 2013 Mar 15; 41:417-23.BB

Abstract

The growing demand for compact point-of-care medical devices and portable instruments for on-site environmental sampling has stimulated intense research on flexible sensors that can be miniaturized and function under considerable physical deformation. We report a new type of flexible electrochemical biosensors based on free-standing graphene paper carrying binary nanocomposites of PtAu alloy and MnO(2). The coral-like PtAu-MnO(2) nanocomposites are grown on the substrate through one-step template-free electrodeposition, leading to an intimate contact between the PtAu alloy and MnO(2) matrix. The flexible electrode exhibits a unique set of structural and electrochemical properties such as better uniformity, larger active surface areas, and faster electron transfer in comparison with the control electrode prepared by tandem growth of MnO(2) network and PtAu alloy in two steps. In nonenzymatic amperometric glucose detection, the PtAu-MnO(2) binary nanostructure-decorated graphene paper has shown greatly enhanced sensing performance such as wide liner range (0.1 mM to 30.0 mM), high sensitivity (58.54 μA cm(-2) mM(-1)), low detection limit (0.02 mM, S/N=3), satisfactory selectivity, excellent reproducibility and stability, and tolerability to mechanical stress. The strategy of co-growth of metal and metal oxides on freestanding carbon substrates opens new possibility to develop high-performance flexible electrochemical sensors.

Authors+Show Affiliations

School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore 637457, Singapore.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

23036772

Citation

Xiao, Fei, et al. "Growth of Coral-like PtAu-MnO2 Binary Nanocomposites On Free-standing Graphene Paper for Flexible Nonenzymatic Glucose Sensors." Biosensors & Bioelectronics, vol. 41, 2013, pp. 417-23.
Xiao F, Li Y, Gao H, et al. Growth of coral-like PtAu-MnO2 binary nanocomposites on free-standing graphene paper for flexible nonenzymatic glucose sensors. Biosens Bioelectron. 2013;41:417-23.
Xiao, F., Li, Y., Gao, H., Ge, S., & Duan, H. (2013). Growth of coral-like PtAu-MnO2 binary nanocomposites on free-standing graphene paper for flexible nonenzymatic glucose sensors. Biosensors & Bioelectronics, 41, 417-23. https://doi.org/10.1016/j.bios.2012.08.062
Xiao F, et al. Growth of Coral-like PtAu-MnO2 Binary Nanocomposites On Free-standing Graphene Paper for Flexible Nonenzymatic Glucose Sensors. Biosens Bioelectron. 2013 Mar 15;41:417-23. PubMed PMID: 23036772.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Growth of coral-like PtAu-MnO2 binary nanocomposites on free-standing graphene paper for flexible nonenzymatic glucose sensors. AU - Xiao,Fei, AU - Li,Yuanqing, AU - Gao,Hongcai, AU - Ge,Shuibing, AU - Duan,Hongwei, Y1 - 2012/09/15/ PY - 2012/03/18/received PY - 2012/06/13/revised PY - 2012/08/31/accepted PY - 2012/10/6/entrez PY - 2012/10/6/pubmed PY - 2013/6/1/medline SP - 417 EP - 23 JF - Biosensors & bioelectronics JO - Biosens Bioelectron VL - 41 N2 - The growing demand for compact point-of-care medical devices and portable instruments for on-site environmental sampling has stimulated intense research on flexible sensors that can be miniaturized and function under considerable physical deformation. We report a new type of flexible electrochemical biosensors based on free-standing graphene paper carrying binary nanocomposites of PtAu alloy and MnO(2). The coral-like PtAu-MnO(2) nanocomposites are grown on the substrate through one-step template-free electrodeposition, leading to an intimate contact between the PtAu alloy and MnO(2) matrix. The flexible electrode exhibits a unique set of structural and electrochemical properties such as better uniformity, larger active surface areas, and faster electron transfer in comparison with the control electrode prepared by tandem growth of MnO(2) network and PtAu alloy in two steps. In nonenzymatic amperometric glucose detection, the PtAu-MnO(2) binary nanostructure-decorated graphene paper has shown greatly enhanced sensing performance such as wide liner range (0.1 mM to 30.0 mM), high sensitivity (58.54 μA cm(-2) mM(-1)), low detection limit (0.02 mM, S/N=3), satisfactory selectivity, excellent reproducibility and stability, and tolerability to mechanical stress. The strategy of co-growth of metal and metal oxides on freestanding carbon substrates opens new possibility to develop high-performance flexible electrochemical sensors. SN - 1873-4235 UR - https://www.unboundmedicine.com/medline/citation/23036772/Growth_of_coral_like_PtAu_MnO2_binary_nanocomposites_on_free_standing_graphene_paper_for_flexible_nonenzymatic_glucose_sensors_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0956-5663(12)00603-3 DB - PRIME DP - Unbound Medicine ER -