Highly fluorescing solid dna-cationic polyelectrolyte complexes prepared from a natural DNA and a poly(fluorenevinylene-alt-phenylene) bearing quaternary ammonium pendants

Young Jun Yu, Young Wan Kwon, Kyu Nam Kim, Eui Doo Do, Dong Hoon Choi, Jung Il Jin, Hee Won Shin, Yong Rok Kim, Ik Joong Kang, John A. Mikroyannidis

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

A fluorescing, copolymer (Q)-bearing, quaternary ammonium pendant was mixed with excess natural salmon sperm DNA with a molecular weight of 1.3 x 10 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 Q by complexation with excess DNA.

Original languageEnglish
Pages (from-to)245-249
Number of pages5
JournalMacromolecular Research
Volume17
Issue number4
Publication statusPublished - 2009 Apr 1

Fingerprint

Bearings (structural)
Polyelectrolytes
Ammonium Compounds
DNA
Polymers
Fluorescence
Complexation
Complex Mixtures
Copolymers
Molecular weight
polycations

Keywords

  • Complexation
  • Conjugated polymer
  • DNA
  • Fluorescence
  • Polyelectrolyte

ASJC Scopus subject areas

  • Organic Chemistry
  • Materials Chemistry
  • Polymers and Plastics
  • Chemical Engineering(all)

Cite this

Highly fluorescing solid dna-cationic polyelectrolyte complexes prepared from a natural DNA and a poly(fluorenevinylene-alt-phenylene) bearing quaternary ammonium pendants. / Yu, Young Jun; Kwon, Young Wan; Kim, Kyu Nam; Do, Eui Doo; Choi, Dong Hoon; Jin, Jung Il; Shin, Hee Won; Kim, Yong Rok; Kang, Ik Joong; Mikroyannidis, John A.

In: Macromolecular Research, Vol. 17, No. 4, 01.04.2009, p. 245-249.

Research output: Contribution to journalArticle

Yu, Young Jun ; Kwon, Young Wan ; Kim, Kyu Nam ; Do, Eui Doo ; Choi, Dong Hoon ; Jin, Jung Il ; Shin, Hee Won ; Kim, Yong Rok ; Kang, Ik Joong ; Mikroyannidis, John A. / Highly fluorescing solid dna-cationic polyelectrolyte complexes prepared from a natural DNA and a poly(fluorenevinylene-alt-phenylene) bearing quaternary ammonium pendants. In: Macromolecular Research. 2009 ; Vol. 17, No. 4. pp. 245-249.
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abstract = "A fluorescing, copolymer (Q)-bearing, quaternary ammonium pendant was mixed with excess natural salmon sperm DNA with a molecular weight of 1.3 x 10 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 Q by complexation with excess DNA.",
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AU - Kim, Kyu Nam

AU - Do, Eui Doo

AU - Choi, Dong Hoon

AU - Jin, Jung Il

AU - Shin, Hee Won

AU - Kim, Yong Rok

AU - Kang, Ik Joong

AU - Mikroyannidis, John A.

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