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Issue 18, 2015
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A novel photoelectrochemical aptasensor based on the modulation of a dye sensitized TiO2 photoelectrode

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Abstract

An N719 dye labeled short DNA chain is introduced onto the surface of a TiO2 photoelectrode by hybridizing with a pre-immobilized thrombin aptamer to enhance the photocurrent response. After incubating with thrombin, both the dye labeled chain releasing from the photoelectrode and the bound thrombin blocking the electron transfer resulted in a decreased photocurrent.

Graphical abstract: A novel photoelectrochemical aptasensor based on the modulation of a dye sensitized TiO2 photoelectrode

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Supplementary files

Article information


Submitted
23 Jun 2015
Accepted
27 Jul 2015
First published
12 Aug 2015

Anal. Methods, 2015,7, 7443-7446
Article type
Communication

A novel photoelectrochemical aptasensor based on the modulation of a dye sensitized TiO2 photoelectrode

K. Wang, L. Xu, N. Sun, Z. Wang, S. Hong, J. Wang, M. Liu and R. Pei, Anal. Methods, 2015, 7, 7443 DOI: 10.1039/C5AY01610J

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