单,双和多个异构原子的杂碳量子点作为有效的光诱导抗菌材料
Selin Sagbas Suner1, Mehtap Sahiner2, Sahin Demirci3
1Department of Chemistry, Faculty of Sciences, Canakkale Onsekiz Mart University, Terzioglu Campus, 17100, Canakkale, Turkey.
Journal of fluorescence
|October 17, 2025
概括
用,硫和添加的碳量子点 (CQ-点) 显示出强大的抗微生物特性. N/B-doped CQ-dots对大肠杆菌有效,而N/S-doped CQ-dots针对S. aureus和C. albicans,显示出广泛的抗病原体活性.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
- 生物医学工程 生物医学工程
背景情况:
- 碳量子点 (CQ-点) 是一种新兴的纳米材料,具有多种应用.
- 异原子兴奋剂 (N,S,B) 可以调整CQ点的特性以提高功能.
- 开发新的抗微生物药物对于对抗传染病至关重要.
研究的目的:
- 合成和表征单,双和多异原子合的CQ点 (N,S,B).
- 调查异构原子兴奋剂对CQ点的抗病原性活动的影响.
- 评估抗菌药物对细菌和真菌的有效性,包括生物膜抑制.
主要方法:
- 合成的CQ点是使用酸,聚乙氨酸,氨酸和酸作为前体.
- 测量了量子产量和泽塔潜力,以描述CQ点的特征.
- 对抗生素敏感性测试 (MIC) 针对大肠杆菌,金黄色葡萄球菌和白菌进行.
- 进行了光动力学抗菌研究和生物膜根除试验.
- 生物相容性通过血液相容性和细胞毒性测试进行评估.
主要成果:
- 使用N/B剂的CQ点获得了45.9%的量子产量,并显示出高的抗菌活性 (MIC为1.56 mg/mL对抗大肠杆菌).
- 用N/S合的CQ点对S. aureus和C. albicans表现出强大的抗菌活性 (MIC为0.37 mg/mL).
- 光动力学抗微生物研究表明,在暴露于UV-A光线时,微生物抑制>50%.
- N-和N/S-合的CQ点在根除Candida albicans生物膜方面是有效的.
- 所有合成的CQ点都在1000μg/mL时表现出良好的生物相容性.
结论:
- 异质原子兴奋剂显著增强了CQ点的抗病原性活动.
- 用N/B和N/S合的CQ点显示出作为宽谱抗菌剂的有希望的潜力.
- 这些CQ点的光动力学和抗菌膜特性提供了多功能治疗策略.
- 化CQ点的生物相容性支持它们在生物医学应用中的潜力.
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