用单波长可见光照射对日利乙烯进行光切换
Ryota Kashihara1, Masakazu Morimoto1, Syoji Ito2
1Department of Chemistry and Research Center for Smart Molecules, Rikkyo University , Nishi-Ikebukuro 3-34-1, Toshima-ku, Tokyo, 171-8501, Japan.
Journal of the American Chemical Society
|November 8, 2017
概括
这项研究引入了一种新型可光切换的光分子, 这一进步使得生物应用中的超高分辨率显微镜能够有效地进行光光开关.
科学领域:
- 摄影化学
- 光显微镜
- 有机化学
背景情况:
- 可光切换的光分子对于超分辨率显微镜至关重要.
- 现有的可光切换分子通常需要紫外线来激活.
- 可见光激活为生物成像提供了优势.
研究的目的:
- 报告一种新型提奥芬衍生物的光光换变 (1).
- 在没有紫外线激发的情况下展示可见光诱导的循环和循环逆转.
- 探索这种分子在超高分辨率光成像中的应用.
主要方法:
- 用单波长可见光 (420-470 nm) 照射分子1.
- 对开环同位素1a转化为光闭环同位素1b的研究.
- 数字模拟以估计吸收系数.
主要成果:
- 使用可见光 (420-470 nm) 进行光光换成功.
- 可见光诱导了远离共振区域的循环和循环逆转反应.
- 在450nm的弱吸收系数被估计为n-hexane和CCl4.
结论:
- 分子1表现出可逆光光交换与单一可见光.
- 这种特性对生物系统中的超分辨率光成像具有优势.
- 使用可见光可以避免与紫外线相关的潜在光损伤.
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