Assembly kinetics in binary mixtures of strongly attractive colloids.
J Phys Chem B
; 113(19): 6775-81, 2009 May 14.
Article
em En
| MEDLINE
| ID: mdl-19374359
ABSTRACT
The early stages of aggregation kinetics in a binary mixture of asymmetric colloids, aggregating irreversibly via biotin-streptavidin bonds, are experimentally and numerically studied. Experiments are performed by DLS methods, and data are analyzed in terms of a Smoluchowski-like coagulation equation. Focus is on the case of small (S) biotin-covered particles interacting with large (L) streptavidin-covered ones. The small particles act as linkers between the large ones. The dependence of S-L and L-L aggregation rate constants on the ratio between concentration of small and large particles is investigated, to detect the concentration at which aggregation of large particles is most effective.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Coloides
/
Misturas Complexas
Idioma:
En
Ano de publicação:
2009
Tipo de documento:
Article