Mussel-inspired biopolymer modified 3D graphene foam for enzyme immobilization and high performance biosensor

	Mussel-inspired biopolymer modified 3D graphene foam for enzyme immobilization and high performance biosensor
	Liu,Jiyang; Wang,Tianshu; Wang,Jin; Wang,Erkang
刊名	electrochimica acta
	2015
卷号	161 页码:17-22
关键词	CARBON NANOTUBES DIRECT ELECTROCHEMISTRY 3-DIMENSIONAL GRAPHENE HORSERADISH-PEROXIDASE MODIFIED ELECTRODE METHYLENE-BLUE OXIDE FUNCTIONALIZATION POLYDOPAMINE COMPOSITE
通讯作者	wang,j
英文摘要	a simple and versatile method is described to construct high performance three-dimensional (3d) graphene-based enzyme biosensor. monolithic and macroporous 3d graphene foam grown by chemical vapor deposition (cvd) was used as a freestanding electrode for co-immobilization of horseradish peroxidase (hrp) and a commonly used redox mediator, methylene blue (mb). carbon nanotubes (cnts) were employed as carriers of mb molecules to immobilize them on 3d graphene surface through strong pi-pi stacking force. mussel-inspired biopolymer polydopamine (pda) was formed by in-situ polymerization and served as a green linker, which could covalently graft hrp on the surface of 3d graphene/mb-cnts electrode. in addition, pda layer could also effectively prevent the leakage of inner electron mediators. owing to the 3d macroporous architecture, exceptional properties of graphene and surface-bound mediators, the biosensor demonstrated outstanding performance for reagentless detection of h2o2 in terms of wide linear range (0.2 mu m to 1.1 mm), high sensitivity (227.8 mu a mm(-1) cm(-2)), low detection limit (58.0 nm), and fast response (reaching 95% of the steady current within 3 s). the biosensor exhibited high reproducibility and stability. (c) 2015 elsevier ltd. all rights reserved.
收录类别	SCI
语种	英语
WOS记录号	WOS:000351693500003
公开日期	2016-05-31
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/65130]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Liu,Jiyang,Wang,Tianshu,Wang,Jin,et al. Mussel-inspired biopolymer modified 3D graphene foam for enzyme immobilization and high performance biosensor[J]. electrochimica acta,2015,161:17-22.
APA	Liu,Jiyang,Wang,Tianshu,Wang,Jin,&Wang,Erkang.(2015).Mussel-inspired biopolymer modified 3D graphene foam for enzyme immobilization and high performance biosensor.electrochimica acta,161,17-22.
MLA	Liu,Jiyang,et al."Mussel-inspired biopolymer modified 3D graphene foam for enzyme immobilization and high performance biosensor".electrochimica acta 161(2015):17-22.