原子工程是为了优化光敏剂在质瘤光热和光动力学治疗中的性能
Shaorong Huang1, Tianqi Xu2, Tao Song3
1Institute of Geriatrics, Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, Jiangxi 330006, PR china.
Colloids and surfaces. B, Biointerfaces
|November 14, 2025
概括
原子工程修饰光敏剂创造了新的纳米粒子. 这些纳米颗粒显示出先进光疗和癌症治疗的前景,具有高效率和生物相容性.
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:
- 目前的光敏剂 (PS) 设计侧重于终端或基修饰.
- 分子骨架的修改,特别是的功能化,尚未得到充分研究.
- 需要具有增强性质的先进光疗剂.
研究的目的:
- 通过分子骨架的原子工程开发新的光敏感剂 (RP-S和RP-Se).
- 为协同光疗创造相应的纳米粒子 (RP-S NP和RP-Se NP).
- 评估修饰纳米颗粒在光热疗法和成像方面的潜力.
主要方法:
- 原子工程修改分子骨架以加入硫或.
- 制备光敏化纳米粒子 (RP-S NP和RP-Se NP).
- 光学属性的表征,光热转换效率和ROS生产.
- 在体外细胞毒性测定和瘤细胞消去研究.
- 在GL261瘤模型中的体内瘤生长抑制研究.
主要成果:
- RP-Se和RP-SeNP显示了吸收/发射波长的显著红色偏移.
- RP-Se NPs显示了增强的灭系数和高光热转换效率 (63.76%).
- 在RP-Se NP中表现出有效的光成像,双重I/II型ROS生成 (1.6xRP-S NP) 和近100%的瘤细胞切除在体外.
- 在体内研究表明,GL261有效抑制瘤生长,单剂量RP-SeNP和辐射,具有优良的生物相容性.
结论:
- 对分子骨架的原子工程改造是高性能光敏化剂的可行策略.
- 改性纳米颗粒 (RP-Se NPs) 显示出作为NIR-II光异常剂的显著潜力.
- 这种方法为开发先进的癌症光疗和诊断工具提供了一个有希望的途径.
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