一个双核 (II) 复杂的近红外纳米探测器用于核DNA
Fabian Dröge1, Felicity F Noakes, Stuart A Archer
1Institute of Physical Chemistry, Helmholtzweg 4, 07743 Jena, Germany; Institute of Photonic Technology Jena e.V., Albert-Einstein-Straße 9, 07749 Jena, Germany.
Journal of the American Chemical Society
|November 22, 2021
概括
研究人员开发了一种新的近红外 (NIR) 成像探测器, 这种光稳定探测器非常适合通过超分辨率显微镜对活细胞进行成像和DNA可视化.
科学领域:
- 无机化学
- 摄影化学
- 生物物理化学
背景情况:
- 开发光稳定的近红外 (NIR) 成像探测器对于先进的生物研究至关重要.
- 由于其独特的电子性质, (II) 复合物具有NIR发射的潜力.
研究的目的:
- 合成和描述用于光稳定NIR细胞成像的新型异质 (II) 复合物.
- 研究一种新的双核 (II) 复合物的激发状态动力学和生物兼容性.
主要方法:
- 一个双核 (II) 复合物的合成,[{Os (TAP) 2}2tpphz]4+.
- 包括共振拉曼和时间分辨率吸收光谱的光谱分析.
- 计算研究和基于细胞的测试以评估细胞毒性和光细胞毒性.
主要成果:
- 合成的复合物在780nm处表现出稳定的NIR发射,源自3MCLT状态.
- 该复合物与其 (II) 类似物不同,是无细胞毒和无光细胞毒的.
- 作为核DNA成像的超分辨率NIR STED探测器的实用性得到证明.
结论:
- 新的 (II) 复合物是一种高度光稳定的活细胞透NIR探测器.
- 它的特性使其适用于光学显微镜,特别是用于像DNA这样的细胞结构的超高分辨率成像.
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