一个用N-基替代的酸平台,用于构建可通过脏清理的近红外化探针
Weizhong Ding1, Ming Jia1, Shankun Yao1
1State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center (ChemBIC), ChemBioMed Interdisciplinary Research Center, Nanjing University, Nanjing 210093, China.
Journal of the American Chemical Society
|December 14, 2025
概括
研究人员开发了一种用于实时监测疾病的新染料成像平台. 这种可通过清除的探针提供了更好的安全性,并使尿光检测成为可能,其性能优于传统的损伤测试.
科学领域:
- 生物医学工程
- 分子成像
- 有机化学
背景情况:
- 素染料对于分子成像至关重要,但由于肝胆清除速度缓慢,因此存在毒性问题.
- 开发可清除脏的探针对于更安全的长期疾病监测至关重要.
研究的目的:
- 设计一种新型的素成像平台, 具有高效的干净度, 可实时监测疾病.
- 研究酸衍生物的结构-性质关系,以优化光和清除.
主要方法:
- 在中位位置的IR780胺 (CyP) 的分子工程.
- 引入基和对刺激有反应的自焚链接器.
- 四个代表性的近红外 (NIR) 光探测器的设计和合成.
- 在急性损伤 (AKI) 模型中评估清,光反应和应用.
主要成果:
- 通过静电相互作用增强清除.
- 通过光诱导的电子转移 (PET) 和扭曲的分子内电荷转移 (TICT) 来显著灭光.
- 开发的探针显示了NIR光"启动"反应和快速的清除.
- 探测器成功地可视化了AKI小鼠模型中的氧化还原失衡,对SCr和BUN测定具有更高的灵敏度.
结论:
- 建立了一个基于氨酸染料的通用化平台.
- 通过尿液光读数显示了实时疾病监测的潜力.
- 为生物成像应用提供了对胺染料结构属性关系的见解.
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