Composite system based on chitosan and room-temperature ionic liquid: Direct electrochemistry and electrocatalysis of hemoglobin

CORC > 西双版纳热带植物园 > 中国科学院西双版纳热带植物园 > 文献共享

	Composite system based on chitosan and room-temperature ionic liquid: Direct electrochemistry and electrocatalysis of hemoglobin
	Lu, XB ; Hu, JQ ; Yao, X ; Wang, ZP ; Li, JH
刊名	BIOMACROMOLECULES
	2006
卷号	7 期号:3 页码:975-980
关键词	GLASSY-CARBON ELECTRODE HORSERADISH-PEROXIDASE HEME-PROTEINS GOLD NANOPARTICLES FILMS BIOSENSOR IMMOBILIZATION STABILITY POLYMER BIOELECTROCHEMISTRY
ISSN号	1525-7797
中文摘要	A novel polymer/room-temperature ionic liquid (RTIL) composite material based on chitosan (Chi) and 1-butyl-3-methyl-imidazolium tetrafluoroborate (BMIMBF4) was explored. The composite system can be readily used as an immobilization matrix to entrap proteins and enzymes. Hemoglobin (Hb) was chosen as a model protein to investigate the composite system. A pair of well-defined quasireversible redox peaks of hemoglobin were obtained at the Chi-BMIMBF4-Hb composite-film-modified glassy carbon (GC) electrode by direct electron transfer between the protein and the GC electrode. Dramatically enhanced biocatalytic activity was exemplified at the Chi-BMIMBF4-Rb/GC electrode by the reduction of oxygen and trichloroacetic acid. Thermogravimetric analysis (TGA) suggests that the Chi-BMIMBF4-Hb composite has higher thermal stability than Chi-Hb itself. The Chi-BMIMBF4-Hb film was also characterized by UV-visible spectra, indicating excellent stability in solution and good biocompatibility for protein. The unique composite material based on polymer and ionic liquid can find wide potential applications in direct electrochemistry, biosensors, and biocatalysis.
学科主题	Biochemistry & Molecular Biology ; Chemistry ; Polymer Science
收录类别	SCI
原文出处	10.1021/bm050933t
公开日期	2016-05-06
内容类型	期刊论文
源URL	[http://ir.xtbg.org.cn/handle/353005/9766]
专题	西双版纳热带植物园_文献共享
推荐引用方式 GB/T 7714	Lu, XB,Hu, JQ,Yao, X,et al. Composite system based on chitosan and room-temperature ionic liquid: Direct electrochemistry and electrocatalysis of hemoglobin[J]. BIOMACROMOLECULES,2006,7(3):975-980.
APA	Lu, XB,Hu, JQ,Yao, X,Wang, ZP,&Li, JH.(2006).Composite system based on chitosan and room-temperature ionic liquid: Direct electrochemistry and electrocatalysis of hemoglobin.BIOMACROMOLECULES,7(3),975-980.
MLA	Lu, XB,et al."Composite system based on chitosan and room-temperature ionic liquid: Direct electrochemistry and electrocatalysis of hemoglobin".BIOMACROMOLECULES 7.3(2006):975-980.