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	Highly sensitive catalase electrode based on polypyrrole films with microcontainers
	Yu-ying Gao ; Gao-quan Shi
	2010-05-06 ; 2010-05-06
关键词	microstructured polypyrrole catalase electropolymerization sensors hydrogen peroxide DIRECT ELECTROCHEMICAL OXIDATION HYDROGEN-PEROXIDE BIOSENSOR BEEF-LIVER CATALASE MICROSTRUCTURES IMMOBILIZATION MEMBRANE PYRROLE ACID Polymer Science
中文摘要	Highly sensitive catalase electrodes for sensing hydrogen peroxide have been fabricated based on polypyrrole films with microcontainers. The microcontainers have a cup-like morphology and are arranged in a density of 4000 units cm(-2). Catalase was immobilized into the polypyrrole films with microcontainers (Ppy-mc), which were coated on a Pt substrate electrode. The catalase/Ppy-me/Pt electrode showed linear response to hydrogen peroxide in the range of 0-18 mmol/L at a potential of -0.3 V (versus SCE). Its sensitivity was measured to be approximately 3.64 mu A (mmol/L)(-1) cm(-2), which is about two times that of the electrode fabricated from a flat Ppy film (catalase/Ppy-flat/Pt electrode). The electrode is highly selective for hydrogen peroxide and its sensitivity is interfered by potential interferents such as ascorbic acid, urea and fructose. Furthermore, such catalase electrodes showed long-term storage stability of 15 days under dry conditions at 4 degrees C.
语种	英语 ; 英语
出版者	WORLD SCIENTIFIC PUBL CO PTE LTD ; SINGAPORE ; 5 TOH TUCK LINK, SINGAPORE 596224, SINGAPORE
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/13091]
专题	清华大学
推荐引用方式 GB/T 7714	Yu-ying Gao,Gao-quan Shi. Highly sensitive catalase electrode based on polypyrrole films with microcontainers[J],2010, 2010.
APA	Yu-ying Gao,&Gao-quan Shi.(2010).Highly sensitive catalase electrode based on polypyrrole films with microcontainers..
MLA	Yu-ying Gao,et al."Highly sensitive catalase electrode based on polypyrrole films with microcontainers".(2010).

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