Characterization of polyaniline-coated magnetic nanoparticles for application in a disposable membrane strip biosensor

被引：2

作者：

Yuk, J. S. ^{[1
]}

Rose, J. ^{[2
]}

Alocilja, E. C. ^{[1
]}

机构：

[1] Dept Biosyst & Agr Engn, E Lansing, MI 48824 USA

[2] Michigan State Univ, Dept Crop & Soil Sci, E Lansing, MI 48824 USA

来源：

EUROPEAN PHYSICAL JOURNAL-APPLIED PHYSICS | 2010年 / 50卷 / 01期

关键词：

BACILLUS-ANTHRACIS SPORES; IMMUNOSENSOR; PERFORMANCE;

D O I：

10.1051/epjap/2010023

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We investigated the electrical properties of polyaniline-coated magnetic nanoparticles as a signal transducer for application in a disposable membrane strip biosensor. The size of these particles (similar to 100 nm) was investigated by a transmission electron microscope. Electrical properties of these nanoparticles were investigated by four-point probe measurements and I-V measurements. Polyaniline-coated magnetic nanoparticles had a resistivity of 0.385 Omega cm and showed ohmic behavior. Resistance decreased with increasing concentration of polyaniline. We also demonstrated that the resistance decreased with increasing concentration of biotinylated IgG conjugated with these nanoparticles.

引用

页码：11401 / p2

页数：5

共 25 条

[1] Conducting polymers in microelectronics [J].