Spontaneous formation of dye-functionalized gold nanoparticles using reverse micellar systems

JOURNAL OF COLLOID AND INTERFACE SCIENCE

卷:356

Article

Takahashi, Masaki¹  Ohno, Shuhei¹  Fujita, Norifumi²  Sengoku, Tetsuya¹  Yoda, Hidemi¹ 

[1] Shizuoka Univ, Fac Engn, Dept Mat Sci, Naka Ku, Hamamatsu, Shizuoka 4328561, Japan

[2] Kyushu Univ, Grad Sch Engn, Dept Chem & Biochem, Nishi Ku, Fukuoka 8190395, Japan

关键词: Hybrid nanomaterial;    Gold nanoparticles;    Anthracene;    Perylene;    Spontaneous formation;   

DOI  :  10.1016/j.jcis.2011.01.045

来源: Elsevier

【 摘 要 】

Detailed exploratory and mechanistic investigations on spontaneous formation of dye-functionalized gold nanoparticles (GNPs) using dye-based reverse micellar systems are described in this publication. The accumulated results from spectroscopic and microscopic investigations demonstrated that water molecules confined within nanoscopic enclosure of the self-assembled reverse micelles played critical role in the redox processes of aurate ions to produce GNPs, which are assumed to have approximately constant size distributions. The resulting dye-functionalized GNPs were found to offer their absorption and fluorescence emission tunability by changing the medium polarity as well as to exhibit excellent film-forming properties to give optically homogeneous polystyrene thin films. These key findings in addition to broad applicability of the self-assembling process with a variety of dye analogues have led to a conclusion that the protocol presented here serves as a versatile synthetic method to provide a potential convenience for future development of new organic-inorganic hybrid nanomaterials. (C) 2011 Elsevier Inc. All rights reserved.

【 授权许可】

Free