Dynamic study on the transformation process of gold nanoclusters.
Nanotechnology
; 25(44): 445705, 2014 Nov 07.
Article
em En
| MEDLINE
| ID: mdl-25319841
ABSTRACT
In this paper, the transformation process from Au8 to Au25 nanoclusters (NCs) is investigated with steady state fluorescence spectroscopy and time-resolved fluorescence spectroscopy at various reaction temperatures and solvent diffusivities. Results demonstrate that Au8 NCs, protected by bovine serum albumin, transform into Au25 NCs under controlled pH values through an endothermic reaction with the activation energy of 74 kJ mol(-1). Meanwhile, the characteristic s-shaped curves describing the formation of Au25 NCs suggest this process involves a diffusion controlled growth mechanism.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Nanoestruturas
/
Ouro
Limite:
Animals
/
Humans
Idioma:
En
Revista:
Nanotechnology
Ano de publicação:
2014
Tipo de documento:
Article
País de afiliação:
Taiwan