Sandwich nanohybrid of single-walled carbon nanohorns–TiO2–porphyrin for electrocatalysis and amperometric biosensing towards chloramphenicol

Wenwen Tu; Jianping Lei; Lin Ding; Huangxian Ju

doi:10.1039/B906876G

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Sandwich nanohybrid of single-walled carbon nanohorns–TiO₂–porphyrin for electrocatalysis and amperometric biosensing towards chloramphenicol†

Wenwen Tu,^a Jianping Lei,*^a Lin Ding^a and Huangxian Ju*^a

Author affiliations

* Corresponding authors

^a Key Laboratory of Analytical Chemistry for Life Science (Education Ministry of China), Department of Chemistry, Nanjing University, Nanjing 210093, P. R. China
E-mail: jpl@nju.edu.cn, hxju@nju.edu.cn
Fax: +86-25-83593593
Tel: +86-25-83593593

Abstract

A sandwich nanohybrid of single-walled carbon nanohorn–TiO₂–porphyrin was prepared via the dentate binding of TiO₂nanoparticles to carboxylate groups, which showed an excellent electrocatalytic activity towards the reduction of chloramphenicol in neutral media, leading to a highly sensitive and stable amperometric biosensor for chloramphenicol.

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Supplementary files

Related reagents, instrumentation, praparation of nanohybridand modified electrode, XPS, IR Raman spectra and TEM images,electrochemical behaviors of SWNHs–TiO₂–porphyrin modified GCE, chemical structures,effects of SWNHs and TiO₂ contents on electrocatalysis PDF (1107K)

Article information

DOI: https://doi.org/10.1039/B906876G
Article type: Communication
Submitted: 06 Apr 2009
Accepted: 14 May 2009
First published: 09 Jun 2009

Download Citation

Chem. Commun., 2009, 4227-4229

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Sandwich nanohybrid of single-walled carbon nanohorns–TiO₂–porphyrin for electrocatalysis and amperometric biosensing towards chloramphenicol

W. Tu, J. Lei, L. Ding and H. Ju, Chem. Commun., 2009, 4227 DOI: 10.1039/B906876G

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