Photophysical Properties and Singlet Oxygen Generation Efficiencies of Water-Soluble Fullerene Nanoparticles

被引：33

作者：

Stasheuski, Alexander S. ^{[1
]}

Galievsky, Victor A. ^{[1
]}

Stupak, Alexander P. ^{[1
]}

Dzhagarov, Boris M. ^{[1
]}

Choi, Mi Jin ^{[2
]}

Chung, Bong Hyun ^{[2
]}

Jeong, Jin Young ^{[2
]}

机构：

[1] Natl Acad Sci Belarus, BI Stepanov Inst Phys, Minsk, BELARUS

[2] Korea Res Inst Biosci & Biotechnol, BioNanotechnol Res Ctr, Taejon, South Korea

来源：

PHOTOCHEMISTRY AND PHOTOBIOLOGY | 2014年 / 90卷 / 05期

基金：

新加坡国家研究基金会;

关键词：

PHOTODYNAMIC THERAPY; MOLECULAR-OXYGEN; DECAY KINETICS; TRIPLET-STATE; QUANTUM DOTS; C-60; LUMINESCENCE; LIFETIME; SEMICONDUCTORS; DEACTIVATION;

D O I：

10.1111/php.12294

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

As various fullerene derivatives have been developed, it is necessary to explore their photophysical properties for potential use in photoelectronics and medicine. Here, we address the photophysical properties of newly synthesized water-soluble fullerene-based nanoparticles and polyhydroxylated fullerene as a representative water-soluble fullerene derivative. They show broad emission band arising from a wide-range of excitation energies. It is attributed to the optical transitions from disorder-induced states, which decay in the nanosecond time range. We determine the kinetic properties of the singlet oxygen (O-1(2)) luminescence generated by the fullerene nanoparticles and polyhydroxylated fullerene to consider the potential as photodynamic agents. Triplet state decay of the nanoparticles was longer than O-1(2) lifetime in water. Singlet oxygen quantum yield of a series of the fullerene nanoparticles is comparably higher ranging from 0.15 to 0.2 than that of polyhydroxylated fullerene, which is about 0.06.

引用

页码：997 / 1003

页数：7

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