级联异质子纳米晶体管用于多重pH间隔成像
Ye Yang1,2, Binlong Chen1,2, Fangjie Wan1,2
1State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China.
Nature communications
|July 2, 2025
概括
我们开发了带通照明纳米组件 (BLINK),可以选择性地报告生物环境中的特定酸性pH值范围. 这项技术可实现精确的光学成像,用于诊断和治疗与pH相关的疾病.
科学领域:
- 生物医学工程 生物医学工程
- 纳米技术 纳米技术
- 分子成像学分子成像学
背景情况:
- 严格的pH调节对于生物的恒温至关重要.
- 病理状况通常涉及明显的pH调节失调,呈现诊断和治疗目标.
- 现有的方法缺乏对生物系统中特定的酸性pH区间进行选择性报告.
研究的目的:
- 设计和开发带通照明纳米组件 (BLINK) 用于选择性报告酸性pH间隔.
- 为了创建一个纳米设备,能够对不同质子水平的门响应.
- 为了实现病理生理学pH动态的精确光学成像.
主要方法:
- 集成类似晶体管的聚合物模块用于超快的纳米相过渡 (<15 ms).
- 在编码的光体之间使用并列的Förster共振能量转移 (FRET) 继电器.
- 实施pH异质化能力,对特定pH范围进行选择性反应.
主要成果:
- BLINK纳米基特显示了酸性间隔的选择性报告,精度高达0.25pH单位.
- 该纳米设备实现了超快的 (<15毫秒) 和级联纳米相过渡.
- 酸性细胞外或细胞内信号被选择性地转化为指数增强的光读数.
结论:
- 在生物环境中,BLINK为精确的pH传感提供了有价值的工具.
- 这项技术使基于间隔的光学成像能够用于疾病诊断和治疗.
- 开发的纳米套件为监测病理生理条件下的动态pH变化提供了一种新的方法.
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