Hostname: page-component-cd9895bd7-8ctnn Total loading time: 0 Render date: 2024-12-25T16:26:30.505Z Has data issue: false hasContentIssue false

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

Published online by Cambridge University Press:  15 March 2010

J. S. Yuk
Affiliation:
Department of Biosystems and Agricultural Engineering, East Lansing, MI, 48824, USA
J. Rose
Affiliation:
Department of Crop and Soil Science, Michigan State University, East Lansing, MI, 48824, USA
E. C. Alocilja*
Affiliation:
Department of Biosystems and Agricultural Engineering, East Lansing, MI, 48824, USA
Get access

Abstract

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 (~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 Ω 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.

Type
Research Article
Copyright
© EDP Sciences, 2010

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Newman, J.D. et al., Sens. Rev. 21, 268 (2001) CrossRef
Mohanty, S.P. et al., IEEE Potentials 25, 35 (2006) CrossRef
Yuk, J.S. et al., Sens. Actuat. B Chem. 119, 673 (2006) CrossRef
Healy, D.A. et al., Trends Biotechnol. 25, 125 (2007) CrossRef
Rodriguez-Mozaz, S. et al., Anal. Bioanal. Chem. 378, 588 (2004)
Gooding, J.J. et al., Anal. Chim. Acta 559, 137 (2006) CrossRef
D'Souza, S.F. et al., Biosens. Bioelectron. 16, 337 (2001) CrossRef
Kim, J.H. et al., Biosens. Bioelectron. 14, 907 (2000) CrossRef
Soper, S.A. et al., Biosens. Bioelectron. 21, 1932 (2006) CrossRef
Kerman, K. et al., Meas. Sci. Technol. 15, R1 (2004) CrossRef
Kim, J. et al., Biosens. Bioelectron. 14, 907 (2000) CrossRef
Yoon, C. et al., Biosens. Bioelectron. 19, 289 (2003) CrossRef
Muhammad-Tahir, Z. et al., Biosens. Bioelectron. 18, 813 (2003) CrossRef
Pal, S. et al., Biosyst. Eng. 99, 461 (2008) CrossRef
Angelopoulos, M., IBM J. Res. Dev. 45, 57 (2001) CrossRef
Imisides, M.D. et al., Chemtech 261, 9 (1996)
Zhang, D. et al., Mater. Sci. Eng. B 134, 9 (2006) CrossRef
Hsing, I.M. et al., Electroanalysis 19, 755 (2007) CrossRef
Tartaj, P. et al., J. Phys. D: Appl. Phys. 36, R182 (2003) CrossRef
Pankhurst, Q.A. et al., J. Phys. D: Appl. Phys. 36, R167 (2003) CrossRef
Bans, L.B., Appl. Chem. 68, 1873 (1996)
Pal, S. et al., IEEE Sens. J. 8, 647 (2008) CrossRef
Pal, S. et al., Biosens. Bioelectron. 24, 1437 (2009) CrossRef
A Short Guide: Developing Immunochromatographic Test Stripes, 2nd edn. (Millipore, Bedford, 2006)
C. Kittel, Introduction to solid state physics, 4th edn. (Wiley, New York, 1971)
Yuk, J.S. et al., Biosens. Bioelectron. 24, 1348 (2009) CrossRef