Wang Xiuyun

Associate Professor   Supervisor of Master's Candidates

Gender:Female

Alma Mater:琦玉工业大学

Degree:Doctoral Degree

School/Department:化学学院

Discipline:Analytical Chemistry. Chemical Biology

Business Address:化学楼432

Contact Information:xiuyun@dlut.edu.cn

E-Mail:xiuyun@dlut.edu.cn


Paper Publications

Development of Triphenylamine Functional Dye for Selective Photoelectrochemical Sensing of Cysteine

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Indexed by:期刊论文

First Author:Wu, Shuo

Correspondence Author:Wu, S (reprint author), Dalian Univ Technol, Sch Chem, Dalian 116023, Peoples R China.

Co-author:Song, Honglei,Song, Jie,He, Cheng,Ni, Jun,Zhao, Yanqiu,Wang, Xiuyun

Date of Publication:2014-06-17

Journal:ANALYTICAL CHEMISTRY

Included Journals:SCIE、EI、PubMed、Scopus

Volume:86

Issue:12

Page Number:5922-5928

ISSN No.:0003-2700

Abstract:A novel triphenylamine-based organic dye, TTA, with an acrylic group is designed to graft TiO2 nanoparticles for sensitive and selective photoelectrochemical sensing. The synthesized TTA possesses a high molar absorption coefficient, leading to an enhanced photoelectron emission ability of the electron donor. The carboxyl group of TTA acts as not only an electron acceptor but also a linker to connect TTA to TiO2 nanoparticles. Under irradiation, TTA shows fast intramolecular charge transfer from triphenylamine to carboxyl group via the pi-bridge of thiophene moiety, thus producing a sensitive photocurrent response. Meanwhile, the acrylic moiety provides an active site for the Michael addition reaction, which would destroy the pi-bridge and decrease the photocurrent response. Thus, a selective photoelectrochemical sensing strategy is proposed for detection of small biomolecules. Using cysteine as a model analyte, this sensing strategy shows a detectable range from 1 to 200 mu M, without the interference from natural amino acids and various biological reducing reagents. This work offers a new photoelectrochemical route to highly selective and sensitive detection of biologically important small molecules.

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在日本埼玉工业大学获得博士学位,在日本东京工业大学从事产学官连携研究员(博士后)研究2年,现就职于大连理工大学 化学学院 硕士生指导教师,副教授。