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Synthesis of phthalocyanine stabilized rhodium nanoparticles and their application in biosensing of cytochrome c

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Title Synthesis of phthalocyanine stabilized rhodium nanoparticles and their application in biosensing of cytochrome c
 
Creator LOKESH, KS
SHIVARAJ, Y
DAYANANDA, BP
CHANDRA, S
 
Subject direct electron-transfer
resonance raman-spectroscopy
gold nanoparticles
direct electrochemistry
copper phthalocyanine
silver electrode
films
superlattices
colloids
rhodium nanoparticles
tem
cytochrome c
biocatalysis
differential pulse voltammetry
electron transfer
 
Description A single step synthesis route is described for the preparation of rhodium nanoparticles using a cobalt aminophthalocyanine macrocyclic complex as a stabilizer. The results of nanoparticles characterization using electronic absorption, Raman and X-ray spectroscopes as well as transmission electron microscopy are reported. Rhodium nanoparticle modified electrode behavior as examined by cyclic and differential pulse voltammetry is also provided. The nanoparticles were found to be well dispersed and stabilized throughout the macromolecular matrix. TEM studies showed that they have an average diameter of 3 to 5 nm with spherical shape. The colloidal rhodium was then used for electrochemical sensing of cytochrome c using glassy carbon electrode. The results showed that the colloidal rhodium nanoparticles enhanced the electron transfer process between cytochrome c and the electrode. Differential pulse voltammetric measurements of cytochrome c at the colloidal rhodium nanoparticles modified glassy carbon electrode showed a linear relationship with the oxidation peak currents in the concentration range of 100 nM to 3 mu M of cytochrome c. (C) 2009
 
Publisher ELSEVIER SCIENCE SA
 
Date 2011-07-28T23:25:19Z
2011-12-26T12:58:46Z
2011-12-27T05:49:16Z
2011-07-28T23:25:19Z
2011-12-26T12:58:46Z
2011-12-27T05:49:16Z
2009
 
Type Article
 
Identifier BIOELECTROCHEMISTRY, 75(2), 104-109
1567-5394
http://dx.doi.org/10.1016/j.bioelechem.2009.02.005
http://dspace.library.iitb.ac.in/xmlui/handle/10054/7524
http://hdl.handle.net/10054/7524
 
Language en