Accelerated Uptake of CO₂ Catalyzed by Immobilized Thermophilic Carbonic Anhydrase on Dispersed Aminated Mesoporous Silica.

ABSTRACT: Efficient and durable biocatalysts are important for sustainable CO₂ capture technologies, but enzyme stability often limits their use under harsh process conditions. Here, we evaluate carbonic anhydrases (CAs) adsorbed onto aminated mesoporous SBA-15 as biocatalysts for CO₂ capture under the hypothesis of adsorption-induced thermal stabilization. Carbonic anhydrase from the thermophilic bacterium Persephonella marina (pmCA) and commercial bovine erythrocyte carbonic anhydrase (bCA) were used. Enzyme adsorption isotherms for pmCA and bCA onto the aminated SBA-15 were established, along with desorption tests. Adsorbed and free pmCA and bCA were incubated at 40-90 °C for 14 d. The structural integrity and possibility of amine leaching of the incubated (90°, 14 d)

SUBMITTER: Svanberg Frisinger MS 

PROVIDER: S-EPMC12616606 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature