کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1230574 1495240 2014 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Two photon absorption energy transfer in the light-harvesting complex of photosystem II (LHC-II) modified with organic boron dye
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Two photon absorption energy transfer in the light-harvesting complex of photosystem II (LHC-II) modified with organic boron dye
چکیده انگلیسی


• A two-photon absorption compound, DMDP-CH2Br, was synthesized and linked to LHC-II.
• The LHC-II-dye complex can absorb two photons of the laser light effectively.
• The absorbed energy in the LHC-II-dye complex can transfer to chlorophyll a.

The plant light-harvesting complexes of photosystem II (LHC-II) play important roles in collecting solar energy and transferring the energy to the reaction centers of photosystems I and II. A two photon absorption compound, 4-(bromomethyl)-N-(4-(dimesitylboryl)phenyl)-N-phenylaniline (DMDP-CH2Br), was synthesized and covalently linked to the LHC-II in formation of a LHC-II-dye complex, which still maintained the biological activity of LHC-II system. Under irradiation with femtosecond laser pulses at 754 nm, the LHC-II-dye complex can absorb two photons of the laser light effectively compared with the wild type LHC-II. The absorbed excitation energy is then transferred to chlorophyll a with an obvious fluorescence enhancement. The results may be interesting and give potentials for developing hybrid photosystems.

A two photon absorption compound, 4-(bromomethyl)-N-(4-(dimesitylboryl)phenyl)-N-phenyl-aniline (DMDP-CH2Br), was synthesized and covalently linked to the LHC-II in formation of a LHC-II-dye complex. The LHC-II-dye complex can absorb two photons of the laser light effectively. The absorbed excitation energy is then transferred to chlorophyll a with an obvious fluorescence enhancement. The work may be interesting and give potentials for developing hybrid photosystems.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy - Volume 128, 15 July 2014, Pages 295–299
نویسندگان
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