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Bias-free glucose/O bio-photoelectrochemical system for multi-energy conversion and phenolic pollutant degradation.
Biosens Bioelectron
December 2024
State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, PR China; School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, PR China. Electronic address:
Developing a multi-functional green energy device that propels sustainable energy development and concurrently purifies environmental pollutants offers an irresistibly compelling vision for a cleaner future. Herein, we reported a bias-free glucose/O bio-photoelectrochemical system (BPECS) for both energy conversion and phenolic pollutants degradation. Coupling a glucose dehydrogenase (GDH) modified self-assembled meso-tetrakis (4-carboxyphenyl)-porphyrin (SA-TCPP)-sensitized TiO biophotoanode for glucose oxidation and nitrogen/oxygen doped cobalt single-atom catalyst (CoNOC) cathode for two-electron oxygen reduction, both solar and biochemical energies were converted into electric power in BPECS with a maximum power density of 296.
View Article and Find Full Text PDFControlled Delivery of HO: A Three-Enzyme Cascade Flow Reactor for Peroxidase-Catalyzed Reactions.
ACS Sustain Chem Eng
July 2024
Department of Chemical Sciences, Bernal Institute, University of Limerick, Limerick V94 T9PX, Ireland.
Peroxidases are promising catalysts for oxidation reactions, yet their practical utility has been hindered by the fact that they require hydrogen peroxide (HO), which at high concentrations can cause deactivation of enzymes. Practical processes involving the use of peroxidases require the frequent addition of low concentrations of HO. generation of HO can be achieved using oxidase-type enzymes.
View Article and Find Full Text PDFGreen synthesis-inspired antibacterial, antioxidant and adhesive hydrogels with ultra-fast gelation and hemostasis for promoting infected skin wound healing.
Acta Biomater
August 2024
School of Life Science, Zhengzhou University, 100 Science Road, Zhengzhou 450001, PR China. Electronic address:
Article Synopsis
- Bacterial infections hinder wound healing, making photothermal therapy (PTT) a promising treatment option, though current wound dressings face challenges like biosafety and thermal stability due to photosensitizers.
- This study presents new hydrogels made of carboxymethyl chitosan (CMCS) and protocatechuic aldehyde (PA) that utilize enzymatic catalysis (horseradish peroxidase and hydrogen peroxide) to enhance photothermal responsiveness and biosafety.
- The CMCS-PA hydrogels exhibit superb antibacterial properties with near-infrared light, promote healing by reducing inflammation and encouraging tissue regeneration, and show potential as safer alternatives to traditional photothermal agents in wound care.
Hydrogels with Ultrasound-Treated Hyaluronic Acid Regulate CD44-Mediated Angiogenic Potential of Human Vascular Endothelial Cells In Vitro.
Biomolecules
May 2024
Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, Toyonaka 560-8531, Osaka, Japan.
The development of hydrogels that allow vascular endothelial cells to form capillary-like networks is critical for advancing tissue engineering and drug discovery. In this study, we developed hydrogels composed of phenolated hyaluronic acid (HA-Ph) with an average molecular weight of 490-159 kDa via sonication in an aqueous solution. These hydrogels were synthesized by the horseradish peroxidase-catalyzed crosslinking of phenol moieties in the presence of hydrogen peroxide and phenolated gelatin.
View Article and Find Full Text PDF3D Bioprinting of Sugar Beet Pectin through Horseradish Peroxidase-Catalyzed Cross-Linking.
ACS Appl Bio Mater
May 2024
Division of Chemical Engineering, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka, Osaka 560-8531, Japan.
Horseradish peroxidase (HRP)-mediated hydrogelation, caused by the cross-linking of phenolic groups in polymers in the presence of hydrogen peroxide (HO), is an effective route for bioink solidification in 3D bioprinting. Sugar beet pectin (SBP) naturally has cross-linkable phenols through the enzymatic reaction. Therefore, chemical modifications are not required, unlike the various polymers that have been used in the enzymatic cross-linking system.
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