Jump to main content
Jump to site search

Issue 15, 2001
Previous Article Next Article

Size selective protein adsorption on thiol-functionalised SBA-15 mesoporous molecular sieve

Author affiliations

Abstract

The mesoporous silica SBA-15, functionalised with propylthiol groups during synthesis and rendered porous (mean pore diameter 51 Å) by extraction of surfactant template molecules, shows strong and size selective adsorption of proteins, selectively excluding those with molecular weights of ca. 40000 u and above. A model for the adsorption process is proposed, in which reversible physisorption is followed by irreversible chemisorption. Adsorption of proteins on an unfunctionalised SBA-15 from which the template has been removed by calcination, (mean pore diameter 56 Å) shows shape selective and reversible adsorption of proteins with molecular weights of ca. 43000 u and below.

Back to tab navigation

Article information


Submitted
31 May 2001
Accepted
18 Jun 2001
First published
03 Jul 2001

Phys. Chem. Chem. Phys., 2001,3, 2983-2985
Article type
Communication

Size selective protein adsorption on thiol-functionalised SBA-15 mesoporous molecular sieve

H. H. P. Yiu, C. H. Botting, N. P. Botting and P. A. Wright, Phys. Chem. Chem. Phys., 2001, 3, 2983
DOI: 10.1039/B104729A

Social activity

Search articles by author

Spotlight

Advertisements