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Popova L. I. Rybachuk V. A. Petrikina A. P. Mikhailovsky N. V. Abakushina E. V. 《Biomedical engineering》2022,56(2):96-99
Biomedical Engineering - Use of laser imaging flow cytometry for assessment of surface markers of human natural killer cells is considered. Cells were extracted from healthy donor peripheral blood... 相似文献
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Xu QH Wang S Korystov D Mikhailovsky A Bazan GC Moses D Heeger AJ 《Proceedings of the National Academy of Sciences of the United States of America》2005,102(3):530-535
The two-step energy-transfer process in a self-assembled complex comprising a cationic conjugated polymer (CCP) and a dsDNA is investigated by using pump-dump-emission spectroscopy and time-correlated single-photon counting; energy is transferred from the CCP to an ethidium bromide (EB) molecule intercalated into the dsDNA through a fluorescein molecule linked to one terminus of the DNA. Time-dependent anisotropy measurements indicate that the inefficient direct energy transfer from the CCP to the intercalated EB results from the near orthogonality of their transition moments. These measurements also show that the transition moment of the fluorescein spans a range of angular distributions and lies between that of the CCP and EB. Consequently, the fluorescein acts as a fluorescence resonance energy-transfer gate to relay the excitation energy from the CCP to the EB. 相似文献
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