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Updated: Jun 5, 2026
A Synthetic Methodology for Preparing Impregnated and Grafted Amine-Based Silica Composites for Carbon Capture
Published on: September 29, 2023
Facile one-step catalytic grafting of N-hydroxysuccinimidyl-ester-functionalized methallylsilane onto silica for
Un-Young Jung1, Jung-Woo Park, Eun-Hee Han
1Department of Chemistry and Center for Bioactive Molecular Hybrid (CBMH), Yonsei University, Seongsanno 262, Seodaemun-gu, Seoul 120-749, Korea.
Abstract:
A one-step grafting method of NHS-ester group is described for the immobilization of enzymes onto a silica surface at room temperature. Pure NHS-ester functionalized methallylsilane was prepared as a grafting reagent and showed remarkable grafting efficiency with acid catalysts at room temperature. As a result, mesoporous silica balls bearing a covalently immobilized enzyme could be obtained with a high loading rate compared to conventional multistep grafting methods. This one-step procedure offers the advantages of precise measurement of the high loading efficiency of the NHS-ester group, and the exclusive formation of only the NHS-ester group, which reduces the presence of unreacted functionalities.
