用微波感应纳米电机克服生物障碍,增强微波热免疫疗法的能力
Zhouli Xia1,2, Yawen Hu3, Wenqi Zhang4
1Key Laboratory of Cryogenics Science and Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Laboratory of Controllable Preparation and Application of Nanomaterials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
ACS applied materials & interfaces
|February 10, 2026
概括
研究人员开发了微波敏感纳米电机,可以突破生物障碍. 这些纳米发动机向深层瘤提供热量和免疫辅助剂,增强免疫反应并抑制瘤生长.
科学领域:
- 生物医学工程 生物医学工程
- 纳米技术纳米技术
- 免疫治疗是一种免疫疗法.
背景情况:
- 瘤高温症受到深层组织中不均的温度分布的限制,从而降低了免疫性.
- 将热剂和免疫辅助剂有效地输送到深层瘤仍然是一个挑战.
研究的目的:
- 设计微波敏化纳米电机,用于增强深部瘤热暴露和免疫治疗.
- 克服生物障碍,以改善热量和免疫辅助剂的传递.
主要方法:
- 用MnO2@BSA纳米颗粒修改的树突氧化 (DS) 核心形成了DMB结构.
- 装有免疫辅助剂R837和四甲基的DMB结构创建了DMBR纳米引擎.
- 微波辐射增强了O2泡的产生,用于纳米电机推进和深度瘤透.
主要成果:
- 纳米发动机通过产生O2泡展示了自主推进,突破了生物障碍.
- 在体外和体外研究表明,纳米运动效率提高了3倍.
- 在深层瘤区域观察到增强的热传播,R837传递和O2释放.
结论:
- DMBR纳米发动机有效地向深层瘤提供热量和免疫辅助剂,触发强大的免疫反应.
- 获得了T细胞透率的增加和主要和远程瘤的显著抑制.
- 这种纳米运动策略为微波热免疫疗法提供了一个有前途的方法.
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