伤口愈合
S-亚硝基谷胱甘肽
壳聚糖
一氧化氮
伤口敷料
生物医学工程
血管生成
海藻酸钠
自愈水凝胶
材料科学
医学
药理学
化学
外科
钠
复合材料
内科学
生物化学
高分子化学
冶金
谷胱甘肽
酶
作者
Kavoos Razmjooee,Fereshteh Oustadi,Alireza Golaghaei,Ehsan Nassireslami
标识
DOI:10.1088/1748-605x/ac877c
摘要
Despite significant progress in developing diabetic wound dressing, the fabrication of an ideal one that fulfills all virtual criteria, such as promoting angiogenesis, is still lacking. Given the low vascularization in chronic diabetic wounds, they have a severe and non-healing nature. In this study, Nitric oxide (NO) was used as an angiogenic agent, which also has antibacterial properties. Briefly, S-nitrosoglutathione (GSNO) as a NO-donor was physically loaded into the carboxymethyl chitosan (CMC)/sodium alginate (ALg) composite film (CMC-ALg-GSNO). The morphological evaluation via scanning electron microscope confirms the homogeneous and porous structure of the wound dressing. The water uptake and water vapor transmission for the wound dressing were 4354.1% ± 179.3% and 2753.8 ± 54.6 g m-2per day, respectively. Anin-vitrorelease study showed a continuous delivery of NO during 168 h. Besides, the result from thein-vivotest reveals that the CMC-ALg-GSNO wound dressing developed diabetic wound healing in a rat model compared to the CMC-ALg and gauze. Thus, this study showed that CMC-ALg-GSNO wound dressing could lead to novel therapeutic invasions to treat diabetic wounds.
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