可见光可激发的Zn2+光传感器来自分子内电荷转移光体及其体外和体外应用
Fang Qian1, Changli Zhang, Yumin Zhang
1State Key Laboratory of Coordination Chemistry, Coordination Chemistry Institute, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, PR China.
Journal of the American Chemical Society
|January 14, 2009
概括
这项研究介绍了NBD-TPEA,一种用于离子 (Zn2+) 成像的新型光传感器. 它克服了紫外线干扰,使Zn2+在活细胞和斑马鱼中清晰可视化,有助于发育研究.
科学领域:
- 化学生物学 化学生物学
- 生物医学工程 生物医学工程
- 分子成像学分子成像学
背景情况:
- 紫外线和传感器诱导的干扰极限 in vivo Zn(2+) 成像.
- 分子内电荷转移 (ICT) 光体为可见光激发提供了潜在的潜力.
研究的目的:
- 开发一种生物相容,可见光激发的光传感器,用于Zn2+) 成像.
- 为了研究传感器在活细胞和斑马鱼胚胎/幼虫中的性能.
主要方法:
- 使用4-amino-7-nitro-2,1,3-benzoxadiazole. 的NBD-TPEA传感器的构建.
- 传感器光物理特性和Zn2+) 结合的特征.
- 在活细胞和斑马鱼上进行细胞内和体内成像实验.
主要成果:
- NBD-TPEA表现出可见的ICT吸收,大的斯托克斯转移和生物相容性.
- 对Zn的选择性和放大光反应 ((2+) 具有1:1的结合比.
- 在 lysosomes 和 Golgi.成功的细胞内Zn(2+) 成像.
- 在斑马鱼心室和发育中的神经大师中Zn(2+) 的可视化.
结论:
- NBD-TPEA是一种可靠的传感器,用于斑马鱼幼虫的体内Zn2+) 成像.
- 传感器有助于澄清亚细胞Zn2+) 分布.
- 这项工作为可见光激发的Zn2+) 光传感器开发提供了一个新的策略.
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