Highly ordered pure-silica MCM-41 materials possessing well-defined morphology have been successfully prepared with surfactant used as a template. The synthesis of mesoporous silica material has received considerable attention due to the need to devel...
Highly ordered pure-silica MCM-41 materials possessing well-defined morphology have been successfully prepared with surfactant used as a template. The synthesis of mesoporous silica material has received considerable attention due to the need to develop more efficient materials for catalysis, separations, and chemical sensing. The surface modified MCM-41 was used as adsorbent for biomolecules. Silica-supported organic groups and DNA adsorption on surface modified MCM-41 were investigated by FT-IR and UV-Vis spectrometer. The use of MCM-41 as the modification of electrode sufaces were investigated electrochemical properties of metal mediators with biomolecules. The modified ITO electrodes increased peak currents for the redox process of [Ru(bpy)_(3)]^(2+) relative to the bare electrode. The electrochemical detection of DNA by cyclic voltammetry when the current is saturated in the presence of the mediator appeared more sensitive due to a higher catalytic current on the MCM-41 supported electrodes modified by amine, thiol and carboxylic acid functional groups. The functional groups on the inner, outer, dual surface of MCM-41 interact and react with the NH_(2) groups of DNA. Ordered mesoporous materials with organic group could find applications as DNA sensors.