{"title":"A bioactive multifunctional dressing with simultaneous visible monitoring of pH values and H<sub>2</sub>O<sub>2</sub> concentrations for promoting diabetic wound healing.","authors":"Jimin Huang, Jinzhou Huang, XinXin Zhang, Qinyi Xie, Yi Zheng, Chaoqin Shu, Zhe Shi, Xiao Wang, Jiajie Chen, Bing Ma, Chengtie Wu, Yufang Zhu","doi":"10.1039/d4mh01142b","DOIUrl":null,"url":null,"abstract":"<p><p>Wound healing in diabetes is a complex physiological process with risks of ulceration and amputation. Real-time monitoring and treatment of diabetic wounds is an effective prevention of further deterioration. Herein, a multifunctional dressing is developed by encapsulating europium-containing bioactive glass (EuBG) and MoO<sub>3-<i>x</i></sub> in a biocompatible sodium alginate (SA) dressing (MoO<sub>3-<i>x</i></sub>-EuBG-SA), aiming to simultaneously monitor the wound pH value and hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) concentration, establish an anti-inflammatory microenvironment, and promote wound healing. The pH-responsive fluorescence quenching effect of EuBG contributes to visible monitoring of pH values, and MoO<sub>3-<i>x</i></sub> enables high responsiveness and accurate colorimetric indication of H<sub>2</sub>O<sub>2</sub> variability to understand the dynamic wound status. Then, these fluorescent and colorimetric changes can be captured using a smartphone and transformed into signals for wound pH values and H<sub>2</sub>O<sub>2</sub> concentrations, enabling rapid and convenient real-time assessment of wound dynamics. Furthermore, the MoO<sub>3-<i>x</i></sub>-EuBG-SA dressing can reduce inflammation and promote the proliferation, differentiation, and migration of fibroblasts and endothelial cells <i>in vitro</i> with the help of the released bioactive Si, Ca, and Mo ions. Notably, the MoO<sub>3-<i>x</i></sub>-EuBG-SA dressing exhibits excellent abilities to monitor a wound microenvironment and immune regulation and promote diabetic wound healing <i>in vivo</i>. Overall, the multifunctional dressing has great potential for managing diabetic wounds and promoting wound healing.</p>","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":12.2000,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Horizons","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1039/d4mh01142b","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Wound healing in diabetes is a complex physiological process with risks of ulceration and amputation. Real-time monitoring and treatment of diabetic wounds is an effective prevention of further deterioration. Herein, a multifunctional dressing is developed by encapsulating europium-containing bioactive glass (EuBG) and MoO3-x in a biocompatible sodium alginate (SA) dressing (MoO3-x-EuBG-SA), aiming to simultaneously monitor the wound pH value and hydrogen peroxide (H2O2) concentration, establish an anti-inflammatory microenvironment, and promote wound healing. The pH-responsive fluorescence quenching effect of EuBG contributes to visible monitoring of pH values, and MoO3-x enables high responsiveness and accurate colorimetric indication of H2O2 variability to understand the dynamic wound status. Then, these fluorescent and colorimetric changes can be captured using a smartphone and transformed into signals for wound pH values and H2O2 concentrations, enabling rapid and convenient real-time assessment of wound dynamics. Furthermore, the MoO3-x-EuBG-SA dressing can reduce inflammation and promote the proliferation, differentiation, and migration of fibroblasts and endothelial cells in vitro with the help of the released bioactive Si, Ca, and Mo ions. Notably, the MoO3-x-EuBG-SA dressing exhibits excellent abilities to monitor a wound microenvironment and immune regulation and promote diabetic wound healing in vivo. Overall, the multifunctional dressing has great potential for managing diabetic wounds and promoting wound healing.