Modification of quartz surfaces via thiol-disulfide interchange

Fine-tuning the degree of organic functionalization of mesoporous silica nanosphere materials via an interfacially designed co-condensation method

“…In the present communication, we investigated the different electrostatic matching effects of various anionic organoalkoxysilanes, such as thiolate-, carboxylate-and sulfonate-containing organoalkoxysilanes, to CTAB micelles in governing the degree of organic functionalization of the MCM-41 type mesoporous silica { Electronic supplementary information (ESI) available: Experimental details, SEM, N 2 adsorption isotherms, XRD, TGA, and solid state 13 C NMR spectra. See http://www.rsc.org/suppdata/cc/b4/b412618a/ *vsylin@iastate.edu materials.…”

Self-assembled silanes and the thiol functionalization of surfaces

“…In the present paper we compare their properties with an established surface linker, mercaptopropyltrimethoxysilane (MPS). The latter has been the subject of several papers [2][3][4][5] in terms of its use in the attachment of enzymes, antibodies and nucleic acids to surfaces for biotechnical and biosensor purposes. These studies have incorporated detailed analysis of MPS films by X-ray photoelectron spectroscopy (XPS) with respect to such variables as layer thickness, degree of coverage and potential for the loading of probe species.…”

“…These studies have incorporated detailed analysis of MPS films by X-ray photoelectron spectroscopy (XPS) with respect to such variables as layer thickness, degree of coverage and potential for the loading of probe species. Yee et al 2 employed derivatization with AgNO 3 as an XPS probe to label accessible thiol groups and found that 75% of these functionalities were available to the small silver ion. However, these workers also pointed out that the silver-stained surface appeared rough on examination by SEM, and that the MPS surface appeared to consist of submicrometer-sized particles.…”

Quinone Tethered Silylethers: Protein Binding and Film Forming Abilities

“…The thiol group bearing trialkoxysilanes find great utility in preparation of hybrid-materials (1-6), surface-modifications (7)(8)(9)(10)(11)(12)(13)(14), catalysis (15,16) and in drug delivery (17,18). A thiol group attached as a component of a trialkoxysilane can be easily functionalized to prepare capped metallic nano-particles (19)(20)(21)(22).…”