Direct excitation of tryptophan phosphorescence. A new method for triplet states investigation
Direct excitation of tryptophan phosphorescence. A new method for triplet states investigation
复制标题
色氨酸磷光的直接激发。
DOI:
10.1088/2050-6120/ac4c9a
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发表时间:
2022
影响因子:
3.2
通讯作者:
I. Gryczynski
中科院分区:
文献类型:
--
作者:
J. Chavez;L. Ceresa;John M Reeks;Y. Strzhemechny;J. Kimball;Emma Kitchner;Z. Gryczynski;I. Gryczynski
We studied room temperature phosphorescence of tryptophan (TRP) embedded in poly (vinyl alcohol) films. With UV (285 nm) excitation, the phosphorescence spectrum of tryptophan appears at about 460 nm. We also observed the TRP phosphorescence with blue light excitation at 410 nm, well outside of the S0 →S1 absorption. This excitation reaches the triplet state of tryptophan directly without the involvement of the singlet excited state. The phosphorescence lifetime of tryptophan is in the sub-millisecond range. The long-wavelength direct excitation to the triplet state results in high phosphorescence anisotropy which can be useful in macromolecule dynamics study via time-resolved phosphorescence.
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影响因子:
56.9
作者:
J. Vanderkooi;D. B. Calhoun;S. Englander
通讯作者:
J. Vanderkooi;D. B. Calhoun;S. Englander
影响因子:
3.4
作者:
Schlyer,BD;Schauerte,JA;Steel,DG;Gafni,A
通讯作者:
Gafni,A
影响因子:
15
作者:
Fischer, CJ;Gafni, A;Schauerte, JA
通讯作者:
Schauerte, JA
DOI:
10.1016/s0005-2728(89)80185-9
发表时间:
1989
期刊:
Biochimica et biophysica acta
影响因子:
--
作者:
Vanderkooi,JM;Berger,JW
通讯作者:
Berger,JW