通过低温挤出3D生物打印ROS响应的黄含凝支架,以增强糖尿病伤口愈合
Cong Ma1, Huamai Qiu1, Yifan Chen1
1School of Food Science and Engineering, South China University of Technology, 381 Wushan Road, Guangzhou, Guangdong 510640, China.
ACS applied bio materials
|January 13, 2026
概括
这项研究开发了一种新的3D打印支架,该支架以反应性氧物种 (ROS) 触发的方式输送黄素,增强慢性伤口愈合. 这种智能生物材料促进了细胞粘附,并减少了糖尿病的炎症.
科学领域:
- 生物材料科学 生物材料科学
- 再生医学是一种再生医学.
- 纳米技术 纳米技术
背景情况:
- 慢性伤口,如糖尿病,需要先进的带,以支持细胞粘附和控制药物输送.
- 现有的治疗方法往往无法解决慢性伤口复杂的炎症和氧化环境.
研究的目的:
- 开发一个多功能,3D打印的脚手架,以改善慢性伤口愈合.
- 为了创建反应性氧物种 (ROS) 敏感的纳米颗粒,封装黄素用于向药物释放.
- 设计一种生物相容的生物墨水,用于精确的伤口支架3D打印.
主要方法:
- 合成ROS响应的两类块共聚物,封装黄素.
- 在接近生理温度的3D打印中配制一种厚性otropic生物墨水.
- 在体外评估生物相容性,细胞粘附和氧化应激减轻.
- 在鼠类糖尿病伤口模型中对支架疗效的体内评估.
主要成果:
- 3D打印的支架展示了ROS触发的黄素释放和内在的激素清除活动.
- 在体外研究显示出优异的生物相容性,支持纤维细胞和巨细胞的粘附,并减少氧化应激.
- 在糖尿病伤口模型中的体内研究通过减少炎症,促进血管生成和增强原沉积来加速伤口关闭.
结论:
- 开发的3D打印,ROS响应的黄素加载的支架是治疗慢性伤口,特别是糖尿病的有前途的策略.
- 这种综合方法可以保持药物活性和打印准确度,为伤口管理提供多功能解决方案.
- 脚手架能够将生物相容性与向治疗释放相结合,这代表了再生医学的重大进步.
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