Limits on Fluorescence Detected Circular Dichroism of Single Helicene Molecules

Yigiao Tang; Timothy A. Cook; Adam E. Cohen

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Limits on Fluorescence Detected Circular Dichroism of Single Helicene Molecules

机译：荧光检测到的单螺旋分子圆二色性的限制

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Fluorescent imaging of single helicene molecules is applied to study the optical activity of chiral fluorophores. In contrast to the previous report by Hassey et al. (Science 2006, 314, 1437), the dissymmetry factors of single chiral fluorophores are found not to differ significantly from the bulk value of Igl < 10-4 at 457 nm. Linear dichroism and birefringence of the dichroic mirror inside the fluorescence microscope change the polarization state of the incoming laser beam significantly; i.e., circular polarized light sent into the microscope becomes highly elliptically polarized after reflection from the dichroic mirror. Compensation for this effect should be made to avoid artifacts brought by linear dichroism in single immobilized molecules.

机译：单个螺旋烯分子的荧光成像用于研究手性荧光团的光学活性。与Hassey等人的先前报告相反。（Science 2006，314，1437），发现单个手性荧光团的不对称因子与457 nm处Igl <10-4的体积值没有显着差异。荧光显微镜内部的二向色镜的线性二向色性和双折射会显着改变入射激光束的偏振状态;即，送入显微镜的圆偏振光在从二向色镜反射后变为高度椭圆偏振。应对此效应进行补偿，以避免单个固定分子中线性二色性带来的伪影。

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《The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory》 |2009年第22期|共4页
作者
Yigiao Tang; Timothy A. Cook; Adam E. Cohen;
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正文语种 eng
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Fluorescence; Single Helicene Molecules; birefringence;

机译：荧光;单螺旋分子;双折射;

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专利

1. Reply to "Comment on 'Limits on Fluorescence Detected Circular Dichroism of Single Helicene Molecules"' [J] . Adam Cohen, Yiqiao Tang The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory . 2009,第35期

机译：回复“关于'检测到的单螺旋分子的圆二色性的限制”评论
2. Limits on Fluorescence Detected Circular Dichroism of Single Helicene Molecules [J] . Yigiao Tang, Timothy A. Cook, Adam E. Cohen The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory . 2009,第22期

机译：荧光检测到的单螺旋分子圆二色性的限制
3. Comment on "Limits on Fluorescence Detected Circular Dichroism of Single Helicene Molecules" [J] . Michael D. Eames, Ruthann Hassey Paradise, Ellen Swain, The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory . 2009,第35期

机译：关于“荧光检测单螺旋分子的圆二色性的限制”的评论
4. Lifetime-resolved fluorescence-detected circular dichroism: A new technique for probing macromolecular structures [C] . Linda B. McGown, Karen Wu, Lei Geng Fluorescence Science and Technology . 2000

机译：寿命分辨荧光检测圆形二色性：一种探测大分子结构的新技术
5. Single molecule chiroptical spectroscopy: Fluorescence excitation circular dichroism and circular polarized luminescence of bridged triarylamine helicenes. [D] . Paradise, Ruthanne Hassey. 2009

机译：单分子光谱法：桥联的三芳基胺螺旋体的荧光激发圆二色性和圆偏振发光。
6. Fluorescence-detected magnetic circular dichroism of fluorescent and nonfluorescent molecules. [O] . J C Sutherland, H Low 1976

机译：荧光检测的荧光和非荧光分子的磁性圆二色性。
7. Fluorescence-detected magnetic circular dichroism of fluorescent and nonfluorescent molecules. [O] . Sutherland, J C, Low, H 1976

机译：荧光检测的荧光和非荧光分子的磁性圆二色性。
8. Single Molecule Spectral Diffusion in a Solid Detected via FluorescenceSpectroscopy [R] . Ambrose, W. P., Basche, T., Moerner, W. E. 1991

机译：荧光光谱法检测固体中的单分子光谱扩散

Limits on Fluorescence Detected Circular Dichroism of Single Helicene Molecules

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