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Biomimetic co-immobilization of β-glucosidase, glucose oxidase, and horseradish peroxidase to construct a multi-enzyme biosensor for determination of amygdalin.
Int J Biol Macromol
January 2025
School of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China. Electronic address:
Accurate, specific, and cost-effective detection of toxic cyanogenic glycosides is crucial for ensuring biological health and food safety. In this study, a novel biosensor based on co-immobilized multi-enzyme system was constructed by artificial antibody-antigen-directed immobilization for the colorimetric detection of amygdalin through a cascade reaction catalyzed by β-glucosidase, glucose oxidase, and horseradish peroxidase. Artificial antibodies and antigens were prepared using catechol and 3,4-dihydroxybenzaldehyde, respectively, to generate mutual affinity recognition ability for enzyme immobilization.
View Article and Find Full Text PDFFabrication of Compartmentalized Multienzyme Reactor for Colorimetric Biosensing of Glucose and Phenol with High Sensitivity.
ACS Appl Mater Interfaces
January 2025
College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, P. R. China.
Enzymatic cascade reactions are widely utilized in food security, environmental monitoring, and disease diagnostics, whereas their practical application was hindered due to their limited catalytic efficiency and intrinsic fragility to environmental influences. Herein, a compartmentalized dual-enzyme cascade nanoreactor was constructed in metal-organic frameworks (ZIF-8) by a shell-by-shell growth method. ZIF-8 provided a good microenvironment to maintain the activity of enzymes and protected them against harsh conditions.
View Article and Find Full Text PDFWood membrane: A sustainable electrochemical platform for enzyme-free and pretreatment-free monitoring uric acid in bodily fluids.
Anal Chim Acta
January 2025
School of Forensic Medicine, China Medical University, No.77 Puhe Road, Shenyang, Liaoning, 110122, China. Electronic address:
The detection of biomarkers is crucial for assessing disease status and progression. Uric acid (UA), a common biomarker in body fluids, plays an important role in the diagnosis and monitoring of conditions such as hyperuricemia, chronic kidney disease, and cardiovascular disease. However, the low concentration of UA in non-invasive body fluids, combined with numerous interfering substances, makes its detection challenging.
View Article and Find Full Text PDFEngineering high-activity crosslinked enzyme aggregates via SpyCatcher/SpyTag-mediated self-assembly.
Int J Biol Macromol
January 2025
College of Forestry, Northwest A&F University, No.3 Taicheng Road, Yangling, Shaanxi 712100, China; Shaanxi Key Laboratory of Economic Plant Resources Development and Utilization, Yangling, Shaanxi 712100, China. Electronic address:
Crosslinked Enzyme Aggregates (CLEAs) are favored for their operational stability and recyclability. However, the traditional CLEAs preparation may distort the enzyme's active site and reduce activity. Therefore, we developed a universally applicable crosslinked SpyCatcher scaffold system designed for the facile preparation of CLEAs.
View Article and Find Full Text PDFSingle-atom nanozymes (SAzymes), with their superior enzyme-like catalytic activity, have emerged as promising candidates for oncology therapeutics. The well-defined structures of SAzymes make them well predictable by experiences and theoretical calculation. However, the effects of metal center species and coordination environments on enzyme-like activity are variable, and screening catalytic activity by artificial experiments is challenging.
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