Imaging Science and Photochemistry ›› 2015, Vol. 33 ›› Issue (1): 77-83.DOI: 10.7517/j.issn.1674-0475.2015.01.077

Previous Articles     Next Articles

A Label-free Fluorometeric Method for Screening the G-quadruplex and Thrombin Based on Aggregation-induced Emission

WANG Ming, ZHANG Guanxin, ZHANG Deqing   

  1. Organic Solids Laboratory, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
  • Received:2014-10-14 Revised:2014-11-18 Online:2015-01-15 Published:2015-01-15

Abstract:

The positively chargedsilole derivative, 1-Methyl-1-(3-trimethylamino)propyl-2,3,4,5-tetraphenylsilole iodide, can differentiate single strand DNA andG-quadruplex by modulating its aggregation and fluorescence emissionwith the binding of DNA.A new label-free fluorescence method for G-quadruplex and thrombin detection was further established by making use of the aggregation-induced emission feature of the silole derivative.

Key words: aggregation-induced emission, fluorescent sensors, G-quadruplex, thrombin