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Updated: Jun 30, 2026

Synthesis of Wavelength-shifting DNA Hybridization Probes by Using Photostable Cyanine Dyes
Published on: July 6, 2016
[Fluorescence spectra of J-aggregates of anionic-cationic cyanine dyes]
Tao Meng1, Duan-fu Xu, Du-jin Wang
1Beijing Institute of Graphic Communication, Physical Laboratory, Beijing 102600, China. tmeng@iccac.ac.cn
Abstract:
In the present paper, the fluorescence spectral curves of J-aggregates of two kinds of anionic-cationic cyanine dyes adsorbed on AgIBr cubic microcrystals were measured by using fluorescence spectroscopy, and compared with the sensitivity characteristic of anionic-cationic cyanine dyes. The results show that the peaks of fluorescence spectral curves of anionic-cationic cyanine dyes were lower than that of anionic and cationic cyanine dyes, and the higher sensitivity efficiency was due to the fact that more electrons transfer to the surface of AgIBr microcrystal.
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