کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1230574 | 1495240 | 2014 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Two photon absorption energy transfer in the light-harvesting complex of photosystem II (LHC-II) modified with organic boron dye Two photon absorption energy transfer in the light-harvesting complex of photosystem II (LHC-II) modified with organic boron dye](/preview/png/1230574.png)
• 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
Journal: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy - Volume 128, 15 July 2014, Pages 295–299