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	Pt Nanoparticles Inserting in Carbon Nanotube Arrays: Nanocomposites for Glucose Biosensors
	Wen, Zhenhai ; Ci, Suqin ; Li, Jinghong
	2010-10-12 ; 2010-10-12
关键词	ELECTROCHEMICAL BIOSENSORS PLATINUM NANOPARTICLES OXIDASE ELECTRODE FABRICATION LAYER COMPOSITE TEMPLATE CHITOSAN SENSORS Chemistry, Physical Nanoscience & Nanotechnology Materials Science, Multidisciplinary
中文摘要	A facile strategy has been developed to prepare carbon nanotubes loading Pt nanoparticle (Pt-CNT) composites. The method involves the polymerization reaction of glucose and the reduction deposition of a platinum source in the pores of anodic alumina membranes (AAMs) under hydrothermal conditions. The Pt-CNT nanocornposites can be obtained through the subsequent carbonization and removal of the AAM template. Through transmission electron microscopy and field-emission scanning electron microscopy, it is observed that the nanocomposites possess a stable hierarchical structure, in which the Pt nanoparticles are uniformly entrapped on the surface of CNTs. Additionally, the Pt-CNT nanocomposites contain large amounts of oxygen-rich Croups that are beneficial to improving its solubility in water and biocompatibility for retaining the bioactivity of glucose oxidase. The nanocomposites electrode is successfully used as a sensitively amperometric sensor for low-potential determination of H2O2. The Pt-CNT-based glucose biosensor is fabricated by mixing the composites with the glucose oxidase, displaying a wide linear calibration range nearly 3 orders of magnitude of glucose concentrations (0.16-11.5 mM) and a low detection limit of 0.055 mM. Furthermore, the biosensor exhibits some other excellent characteristics, Such as high sensitivity and selectivity, short response time, and long-term stability.
语种	英语 ; 英语
出版者	AMER CHEMICAL SOC ; WASHINGTON ; 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/81123]
专题	清华大学
推荐引用方式 GB/T 7714	Wen, Zhenhai,Ci, Suqin,Li, Jinghong. Pt Nanoparticles Inserting in Carbon Nanotube Arrays: Nanocomposites for Glucose Biosensors[J],2010, 2010.
APA	Wen, Zhenhai,Ci, Suqin,&Li, Jinghong.(2010).Pt Nanoparticles Inserting in Carbon Nanotube Arrays: Nanocomposites for Glucose Biosensors..
MLA	Wen, Zhenhai,et al."Pt Nanoparticles Inserting in Carbon Nanotube Arrays: Nanocomposites for Glucose Biosensors".(2010).

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