Current time in Korea 22:06 Apr 19 (Fri) Year 2024 KCS KCS Publications
KCS Publications
My Journal  Log In  Register
HOME > Search > Browsing(JKCS) > Archives

Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 51, Number 6
JKCSEZ 51(6)
December 20, 2007 
 
Title
 Water-Soluble Distyrylbenzene Fluorophore and Fluorescence Behavior in a Polymeric Vesicle

Water-Soluble Distyrylbenzene Fluorophore and Fluorescence Behavior in a Polymeric Vesicle
Author
 Rati Ranjan Nayak, Han Young Woo*

Rati Ranjan Nayak, 우한영*
Keywords
 Vesicle, Fluorescence, Water-soluble Chromophore, Distyrylbenzene, Microenvironment , Vesicle, Fluorescence, Water-soluble Chromophore, Distyrylbenzene, Microenvironment
Abstract
 수용액에서 vesicle을 형성하는 고분자, poly(sodium acrylamidoundecanoate)(PSAU)와 수용성 형광다이,
TPADSB-C를 합성하고 흡수 및 형광 분광기를 이용하여 광학적 특성을 연구하였다. N-phenyl naphthylamine을 형광
probe로 사용하여 PSAU의 농도가 0.01 g/L 이상에서 고분자들의 응집에 의해 vesicle을 형성함을 확인하였다. 수용성
형광다이의 형광 특성을 vesicle의 존재유무에 따라 조사함으로써 형광다이 주위의 미세환경의 변화에 따른 광학적 특성
의 변화를 측정하였다. 형광다이를 고분자 vesicle안에 침투시킬 경우 형광체 주변의 미세 환경(극성 등)의 변화에 따라
수용액 대비 발광 파장은 blue-shift하였고 형광 효율도 90%로 증가하였다. 본 연구는 형광다이를 함유하고 있는 고분
자 vesicle이 바이오이메징 응용에 있어 효과적이고 안정적이면서 biocompatible한 레이블용 테그로 사용될 수 있음을
보여준다.

A vesicle forming polymer, poly(sodium acrylamidoundecanoate) (PSAU) and a water-soluble distyrylbenzene-
based fluorophore, TPADSB-C were synthesized and characterized by using UV-vis and photoluminescence
(PL) spectroscopy. An inter-chain vesicle formation of PSAU was observed at ~0.01 g/L from N-phenyl naphthylamine
fluorescence measurement with changing PSAU concentration in water. Above critical aggregation concentration of
PSAU, optical properties of TPADSB-C were investigated to study the microenvironment modulation through dye
incorporation in the polymeric vesicle. The emission of TPADSB-C in the presence of PSAU vesicles was blue-shifted
and the PL quantum efficiency was increased to 90% due to the microenvironment (e.g. polarity) change in aqueous solution.
This study shows that the polymeric vesicle containing molecular fluorophores has a great potential as an efficient,
stable and biocompatible labeling tag in biological cell imaging.

Page
 513 - 519
Full Text
 PDF

How to access to the WOL for The Bulletin of the Korean Chemical Society ?

The Bulletin of the Korean Chemical Society will be co-published with Wiley-VCH from 2015 towards. The online version of the Journal will thus be available on Wiley Online Library, Wiley(-VCH)'s global online platform.

KCS members can get a free online access to the Bulletin of the Korean Chemical Society in WOL.

Close