Zinc Single-Atom Nanozyme As Carbonic Anhydrase Mimic for CO₂ Capture and Conversion

ACS Materials Au, Journal Year: 2025, Volume and Issue: 5(2), P. 377 - 384

Published: Jan. 31, 2025

Single-atom nanozymes (SANs) are a class of with metal centers that mimic the structure metalloenzymes. Herein, we report synthesis Zn–N–C SAN, which mimics action natural carbonic anhydrase enzyme. The two-step annealing technique led to content more than 18 wt %. Since act as active sites, this high loading resulted in superior catalytic activity. Zn-SAN showed CO2 uptake 2.3 mmol/g and final conversion bicarbonate 91%. was converted via biomimetic process by allowing its adsorption catalyst, followed addition catalyst HEPES buffer (pH = 8) start into HCO3–. Afterward, CaCl2 added form white CaCO3 precipitate, then filtered, dried, weighed. Active carbon MCM-41 were used controls under same reaction conditions. According findings, sequestration capacity 42 mg CaCO3/mg Zn-SAN. Some amino acids (AAs) binding affinity for Zn able suppress enzymatic activity blocking centers. This strategy detection His, Cys, Glu, Asp limits 0.011, 0.031, 0.029, 0.062 μM, respectively, hence utilized quantifying these AAs commercial dietary supplements.

Language: Английский

Nanozymes and the Sustainable Future of Food Quality Control: Innovation versus Pragmatism

ACS Food Science & Technology, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 24, 2025

Language: Английский

Highly accessible Fe-N-C single-atom nanozymes with enhanced oxidase-like activity for smartphone-assisted colorimetric detection of uric acid

Talanta, Journal Year: 2025, Volume and Issue: unknown, P. 128076 - 128076

Published: April 1, 2025

Language: Английский