用于增强声动力癌症治疗的碳点感应空洞Co9
Lu Zhang1, Zuopei Wang1, Yi Ding1
1Department of Thoracic Surgery, Shanghai Pudong New Area People's Hospital, Shanghai 200040, China. luyi@shpdph.com.
Journal of materials chemistry. B
|August 26, 2025
概括
这项研究引入了新的碳点敏感化空心硫化物 (Co9S8-x) 作为先进的无机声敏化剂. 这种材料显著增加了反应性氧物种 (ROS) 的产生,从而提高了瘤的声动疗效.
科学领域:
- 材料科学
- 纳米技术
- 生物医学工程
背景情况:
- 声动疗 (SDT) 使用超声波 (US) 激活声敏剂,生成用于瘤治疗的活性氧物种 (ROS).
- 无机声敏剂通常存在宽带间隙和快速的电子孔重组,限制了ROS的产生.
- 开发高效的无机声敏剂对于SDT的发展至关重要.
研究的目的:
- 开发一种新的无机声敏剂,
- 研究空洞C9S8-x中碳点 (CD) 和硫空缺的协同效应.
- 通过异质连接工程改善ROS生成和瘤细胞亡.
主要方法:
- 合成缺乏硫的空心Co9S8-x纳米粒子.
- 碳点 (CD) 敏感的 Co9S8-x (CD@Co9S8-x) 异质连接的制造.
- 评估声动力学活性,ROS生成,以及体外/体内抗瘤功效.
主要成果:
- 合成的空洞Co9S8-x由于硫空缺而表现出内在的声动力学和化学动力学活动.
- 在美国辐射下,CD@Co9S8-x异质连接显示了ROS产量的级联放大.
- 增强的ROS水平导致瘤细胞的强烈亡,并在体内彻底根除瘤.
结论:
- 具有CD感应的空洞Co9S8-x是一种新且高效的无机声敏剂.
- 空隙工程和异质连接工程是显著提高SDT有效性的可行策略.
- 这种方法为声动力瘤治疗提供了有前途的治疗结果.
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