Mono- and polyamines can catalyze the hydrolysis and condensation of organosilicate starting materials in biomimetic silica synthesis pathways at circum-neutral pHs and room temperature. Our study is focused on understanding the mechanistic role of amines in catalyzing the hydrolysis process that precedes condensation. We have conducted (29)Si NMR experimental studies over a range of temperatur...

This work addresses the comparison of different strategies for improving biosensor performance using nanomaterials. Glucose biosensors based on commonly applied enzyme immobilization approaches, including sol-gel encapsulation approaches and glutaraldehyde cross-linking strategies, were studied in the presence and absence of multi-walled carbon nanotubes (MWNTs). Although direct comparison of d...

Abstract In this study, nine volcanic tuffs from Armenia, Germany and Mexico were treated with two commercially available consolidants on base of silicic acid ester, as well different pretreatments an anti-swelling agent and/or primer components. Prior to the treatment, analyzed regarding their petrography mineralogy, a greater focus clay mineral content. The effect consolidation was evaluated ...

Transition-metal oxides (TMOs) have been investigated extensively because this class of materials exhibits a fascinating array of phenomena because of a strong coupling among lattice, charge, spin, and orbital degrees of freedom. Creating a surface by breaking the symmetry is a way to disturb the coupled system, thus providing a fresh approach for studying the spin-charge-lattice coupling in th...

Transition metal oxides (TMOs) have attracted extensive research attentions as promising electrocatalytic materials. Despite low cost and high stability, the electrocatalytic activity of TMOs still cannot satisfy the requirements of applications. Inspired by kinetics, the design of hollow porous structure is considered as a promising strategy to achieve superior electrocatalytic performance. In...