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Mg-gallate metal-organic framework-based sprayable hydrogel for continuously regulating oxidative stress microenvironment and promoting neurovascular network reconstruction in diabetic wounds

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bioactive Materials 2024年第8期38卷 181-194页

作者： Chenxi Lian Jiawei Liu Wenying Wei Xiaopei Wu Takashi Goto Haiwen Li Rong Tu Honglian Dai State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan430070China National Energy Key Laboratory for New Hydrogen-ammonia Energy Technologies FoshanXianhu LaboratoryFoshan528200China Chaozhou Branch of Chemistry and Chemical Engineering Guangdong Laboratory Chaozhou 521000China

Chronic diabetic wounds are the most common complication for diabetic *** to high oxidative stress levels affecting the entire healing process,treating diabetic wounds remains a ***,we present a strategy for continuously regulating oxidative stress microenvironment by the catalyst-like magnesium-gallate metal-organic framework(Mg-GA mof)and developing sprayable hydrogel dressing with sodium alginate/chitosan quaternary ammonium salts to treat diabetic *** quaternary ammonium salts with antibacterial properties can prevent bacterial *** continuous release of gallic acid(GA)effectively eliminates reactive oxygen species(ROS),reduces oxidative stress,and accelerates the polarization of M1-type macrophages to M2-type,shortening the transition between inflammation and proliferative phase and maintaining redox ***,magnesium ions adjuvant therapy promotes vascular regeneration and neuronal formation by activating the expression of vascular-associated *** hydrogel dressings with antibacterial,antioxidant,and inflammatory regulation rapidly repair diabetic wounds by promoting neurovascular network reconstruction and accelerating re-epithelialization and collagen *** study confirms the feasibility of catalyst-like mof-contained sprayable hydrogel to regulate the microenvironment continuously and provides guidance for developing the next generation of non-drug diabetes dressings.

关键词： Chronic diabetic wounds bioactive mof Antioxidant Anti-inflammation Enzymatic catalysis Neurovascular network reconstruction

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