Photocatalytical reduction of disulphide bonds in peptides on Ag-loaded nano-TiO2 for subsequent derivatization and determination

Lijuan Wang; Xiaowen Yan; Chunlai Xu; Zhiliang Xiao; Limin Yang; Bo Zhang; Qiuquan Wang

doi:10.1039/C1AN15183E

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Photocatalytical reduction of disulphide bonds in peptides on Ag-loaded nano-TiO₂ for subsequent derivatization and determination†

Lijuan Wang,^a Xiaowen Yan,^a Chunlai Xu,^a Zhiliang Xiao,^a Limin Yang,*^a Bo Zhang^a and Qiuquan Wang*^ab

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* Corresponding authors

^a Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, China
E-mail: qqwang@xmu.edu.cn, lmyang@xmu.edu.cn
Fax: +86-592-2187400
Tel: +86-592-2181796

^b State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, China

Abstract

We reported an alternative strategy to reduce disulphide bonds in peptides with Ag-nanoparticle loaded nano-TiO₂ (Ag/TiO₂) under UV irradiation. The feasibility of this strategy was adequately demonstrated using the model peptides oxidized glutathione, vasopressin and insulin, which contain various disulphide bonds, as well as by its application to the determination of Cd-induced phytochelatins in Phaeodactylum tricornutum.

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Article information

DOI: https://doi.org/10.1039/C1AN15183E
Article type: Communication
Submitted: 05 Mar 2011
Accepted: 27 Jun 2011
First published: 15 Jul 2011

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Analyst, 2011,136, 3602-3604

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Photocatalytical reduction of disulphide bonds in peptides on Ag-loaded nano-TiO₂ for subsequent derivatization and determination

L. Wang, X. Yan, C. Xu, Z. Xiao, L. Yang, B. Zhang and Q. Wang, Analyst, 2011, 136, 3602 DOI: 10.1039/C1AN15183E

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