International Journal of Molecular Sciences | |
Self-Assembly of Discrete Metal Complexes in Aqueous Solution via Block Copolypeptide Amphiphiles | |
Keita Kuroiwa1  Yoshitaka Masaki1  Yuko Koga1  | |
[1]Department of Nanoscience, Faculty of Engineering, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto 860-0082, Japan | |
[2] E-Mails: | |
关键词: self-assembly; metal complexes; nanostructure; photoluminescence; metal-metal interaction; nanorod; block copolypeptides; amphiphiles; | |
DOI : 10.3390/ijms14012022 | |
来源: mdpi | |
【 摘 要 】
The integration of discrete metal complexes has been attracting significant interest due to the potential of these materials for soft metal-metal interactions and supramolecular assembly. Additionally, block copolypeptide amphiphiles have been investigated concerning their capacity for self-assembly into structures such as nanoparticles, nanosheets and nanofibers. In this study, we combined these two concepts by investigating the self-assembly of discrete metal complexes in aqueous solution using block copolypeptides. Normally, discrete metal complexes such as [Au(CN)2]−, when molecularly dispersed in water, cannot interact with one another. Our results demonstrated, however, that the addition of block copolypeptide amphiphiles such as K183L19 to [Au(CN)2]− solutions induced one-dimensional integration of the discrete metal complex, resulting in photoluminescence originating from multinuclear complexes with metal-metal interactions. Transmission electron microscopy (TEM) showed a fibrous nanostructure with lengths and widths of approximately 100 and 20 nm, respectively, which grew to form advanced nanoarchitectures, including those resembling the weave patterns of
【 授权许可】
CC BY
© 2013 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland.
【 预 览 】
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