基于红素可见光触发的氧化纳米发电机用于抗菌应用
Xiaoya Li1, Qian Zhang2, Weidong Wu1
1Guangdong Provincial Key Laboratory of Plant Resources Biorefinery, School of Chemical Engineering and Light Industry, Guangdong University of Technology, 100 Waihuan Xi Road, Panyu District, Guangzhou 510006, China.
Biomacromolecules
|September 28, 2024
概括
研究人员开发了一种新型的氧化 (NO) 纳米发电机,使用素和一种光敏化合物. 这种生物相容材料在暴露于可见光时有效杀死细菌,毒性最小.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术 纳米技术
- 抗菌剂 抗菌剂 抗菌剂
背景情况:
- 氧化 (NO) 是一种具有较低耐药性风险的宽谱抗菌剂.
- 开发可控制和生物相容的不释放NO的材料仍然是一个重大挑战.
- 现有的方法经常在有效性,控制和生物相容性方面扎.
研究的目的:
- 创建一个新的,生物相容的氧化 (NO) 纳米生成器,用于增强抗菌应用.
- 为了研究可见光触发的NO释放机制.
- 评估开发的纳米发电机的抗菌疗效和细胞毒性.
主要方法:
- 素,N,N'-di(sec-butyl) -N,N'-dinitroso-1,4-phenylenediamine (BNN6) 和PEG-DSPE2000的自组装成微粒纳米粒子.
- 可见光辐射 (450-460nm) 触发BNN6分解和NO释放.
- 抗菌检测针对格拉姆阴性和格拉姆阳性细菌.
- 在L929小鼠纤维细胞上进行MTT测试以评估细胞毒性.
主要成果:
- 基于素的纳米发电机 (AL-BNN6-PEG) 在水性介质中有效分散了疏水性NO捐赠体 (BNN6).
- 可见光辐射诱导了一种光电子转移机制,导致NO释放.
- 该纳米发电机显示出对格拉姆阴性和格拉姆阳性细菌具有显著的抗菌活性.
- 对L929小鼠纤维细胞细胞观察到微不足道的细胞毒性.
结论:
- 素作为一种可持续的载体和光敏感剂,可以控制NO的释放.
- 开发的纳米发电机为NO介导的抗菌疗法提供了一个简单,有效和生物相容的策略.
- 这种方法为BNN6分解机制和基于NO的抗微生物应用提供了新的见解.
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