A novel magnetic Fe3O4@gold composite nanomaterial: Synthesis and application in regeneration-free immunosensor

被引:19
作者
Liang, Wenbin [1 ]
Yi, Weijing [1 ]
Li, Yan [2 ]
Zhang, Zhujun [1 ]
Yang, Mingzhen [1 ]
Hu, Chuanmin [1 ]
Chen, An [1 ]
机构
[1] Third Mil Med Univ, Dept Clin Biochem, Chongqing 400038, Peoples R China
[2] Third Mil Med Univ, Dept Clin Lab Sci, Chongqing 400038, Peoples R China
关键词
Immunosensor; Magnetic materials; Sensors; DIRECT ELECTRON-TRANSFER; FE3O4; NANOPARTICLES; ALPHA-FETOPROTEIN; MULTILAYER FILM; SERUM; HEMOGLOBIN; BIOSENSORS; PROTEINS;
D O I
10.1016/j.matlet.2010.08.013
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
This paper presents a regeneration-free immunosensor based on a novel magnetic Fe3O4@gold composite nanomaterial, which is able to form a protein/composite nanomaterial due to the stability and biocompatibility of the gold nanomaterial. This enabled simple, effective and controllable detection by immunosensors. In this work, the strategy has been applied to alpha-1-fetoprotein as a model system; however, it could be extended toward other clinically or environmentally interesting biological compounds. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:2616 / 2619
页数:4
相关论文
共 15 条
[1]  
ALPERT E, 1971, GASTROENTEROLOGY, V61, P137
[2]   Electrochemical biosensors utilising electron transfer in heme proteins immobilised on Fe3O4 nanoparticles [J].
Cao, DF ;
He, PL ;
Hu, NF .
ANALYST, 2003, 128 (10) :1268-1274
[3]   Direct electron transfer between hemoglobin and pyrolytic graphite electrodes enhanced by Fe3O4 nanoparticles in their layer-by-layer self-assembly films [J].
Cao, Dongfang ;
Hu, Naifei .
BIOPHYSICAL CHEMISTRY, 2006, 121 (03) :209-217
[4]   A sensitive DNA electrochemical biosensor based on magnetite with a glassy carbon electrode modified by muti-walled carbon nanotubes in polypyrrole [J].
Cheng, GF ;
Zhao, J ;
Tu, YH ;
He, PA ;
Fang, YH .
ANALYTICA CHIMICA ACTA, 2005, 533 (01) :11-16
[5]   Preparation and properties of magnetite and polymer magnetite nanoparticles [J].
Dresco, PA ;
Zaitsev, VS ;
Gambino, RJ ;
Chu, B .
LANGMUIR, 1999, 15 (06) :1945-1951
[6]   Nanocomposite multilayer film of preyssler-type polyoxometalates with fine tunable electrocatalytic activities [J].
Huang, MH ;
Bi, LH ;
Shen, Y ;
Liu, BF ;
Dong, SJ .
JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (28) :9780-9786
[7]   Probing biomolecular interactions at conductive and semiconductive surfaces by impedance spectroscopy: Routes to impedimetric immunosensors, DNA-Sensors, and enzyme biosensors [J].
Katz, E ;
Willner, I .
ELECTROANALYSIS, 2003, 15 (11) :913-947
[8]   Magnetoswitchable reactions of DNA monolayers on electrodes: Gating the processes by hydrophobic magnetic nanoparticles [J].
Katz, E ;
Weizmann, Y ;
Willner, I .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2005, 127 (25) :9191-9200
[9]   Microfluidic immunosensor design for the quantification of interleukin-6 in human serum samples [J].
Messina, German A. ;
Panini, Nancy V. ;
Martinez, Noelia A. ;
Raba, Julio .
ANALYTICAL BIOCHEMISTRY, 2008, 380 (02) :262-267
[10]  
Niemeyer CM, 2001, ANGEW CHEM INT EDIT, V40, P4128, DOI 10.1002/1521-3773(20011119)40:22<4128::AID-ANIE4128>3.0.CO