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Indian Journal of Experimental Biology (IJEB) >
IJEB Vol.48 [2010] >
IJEB Vol.48(10) [October 2010] >
| Title: | Development of transducer matrices based upon nanostructured conducting polymer for application in biosensors |
| Authors: | Deepshikha
Basu, Tinku |
| Keywords: | Biosensor
Composite structure directing agents
Nanoparticles
Polyaniline
Structure directing agents |
| Issue Date: | Oct-2010 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | The
nanostructured polyaniline (NSPANI) and its gold nano composite (GNP) with
controlled size distribution were developed using structure directing agents (SDA). The nano structure of polyaniline were investigated by UV-Visible spectroscopy, transmission
electron microscopy (TEM), dynamic light scattering (DLS), fourrier transform spectroscopy
(FTIR) , X-ray crystallography and scanning electron microscopy(SEM) etc. These
characterization techniques reveal the spherical shape of polyaniline nanoparticles and size in the range
of 7-50 nm depending on the type of dopant and nature of SDA. In general, these NSCP colloidal solutions are
highly stable. UV-Visible spectra show mainly two peaks at 360-430 nm and at
780-870 nm.
The bathochromic shift of the UV-Visible bands as compared to bulk polyaniline,
reflect high DC conductivity. TEM and DLS results demonstrate the formation of
nanostructure with narrow size distribution. Due to remarkable properties of,
it is used as an efficient transduction matrice for the development of highly
sensitive, reproducible, stable optical cholesterol and H2O2
biosensors having wide range of linearity and low Km values. |
| Page(s): | 1053-1062 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-1009 (Online); 0019-5189 (Print) |
| Source: | IJEB Vol.48(10) [October 2010]
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