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Highly Fluorescing Solid DNA-Cationic Polyelectrolyte Complexes Prepared from a Natural DNA and a Poly(fluorenevinylene-alt-phenylene) Bearing Quaternary Ammonium Pendants

Authors
Yu, Young-JunKwon, Young-WanKim, Kyu-NamDo, Eui-DooChoi, Dong-HoonJin, Jung-IlShin, Hee-WonKim, Yong-RokKang, Ik JoongMikroyannidis, John A.
Issue Date
4월-2009
Publisher
SPRINGER
Keywords
DNA; fluorescence; complexation; polyelectrolyte; conjugated polymer
Citation
MACROMOLECULAR RESEARCH, v.17, no.4, pp.245 - 249
Indexed
SCIE
SCOPUS
KCI
Journal Title
MACROMOLECULAR RESEARCH
Volume
17
Number
4
Start Page
245
End Page
249
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/120326
DOI
10.1007/BF03218687
ISSN
1598-5032
Abstract
A fluorescing, copolymer (Q)-bearing, quaternary ammonium pendant was mixed with excess natural salmon sperm DNA with a molecular weight of 1.3x10(6)(2,000 base pairs) to afford highly fluorescing, complex mixtures. The fluorescence life-time of the polymer Q was greatly increased when mixed with DNA: for the mixture of Q:DNA=1:750 the fast and slow decay lifetimes increased from ca. 10 to 100 ps and from 20 ps to ca. 1 ns, respectively. The enhanced fluorescence of the mixtures was ascribed to efficient compartmentalization and reduced conformational relaxation of the polymer (c) by complexation with excess DNA.
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Graduate School > KU-KIST Graduate School of Converging Science and Technology > 1. Journal Articles
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