منابع مشابه
Is each light-harvesting complex protein important for plant fitness?
Many of the photosynthetic genes are conserved among all higher plants, indicating that there is strong selective pressure to maintain the genes of each protein. However, mutants of these genes often lack visible growth phenotypes, suggesting that they are important only under certain conditions or have overlapping functions. To assess the importance of specific genes encoding the light-harvest...
متن کاملThree-dimensional electron diffraction of plant light-harvesting complex.
Electron diffraction patterns of two-dimensional crystals of light-harvesting chlorophyll a/b-protein complex (LHC-II) from photosynthetic membranes of pea chloroplasts, tilted at different angles up to 60 degrees , were collected to 3.2 A resolution at -125 degrees C. The reflection intensities were merged into a three-dimensional data set. The Friedel R-factor and the merging R-factor were 21...
متن کاملArchitecture and function of plant light-harvesting complexes II.
The antenna system associated with plant photosystem II (PSII) comprises a series of light-harvesting complexes II (LHCIIs) which are supramolecular assemblies of chlorophylls, carotenoids, lipids and integral membrane proteins. These complexes not only function in capturing and transmitting light energy, but also have pivotal roles in photoprotection under high-light conditions through a mecha...
متن کاملLight Harvesting for Organic Photovoltaics
The field of organic photovoltaics has developed rapidly over the last 2 decades, and small solar cells with power conversion efficiencies of 13% have been demonstrated. Light absorbed in the organic layers forms tightly bound excitons that are split into free electrons and holes using heterojunctions of electron donor and acceptor materials, which are then extracted at electrodes to give usefu...
متن کاملOptical Approaches for Drug Screening Based Light-Harvesting Conjugated Polyelectrolyte
Multifunctional materials that can simultaneously provide therapeutic action and image the ensuing results provide new strategies for treating various diseases. Here, we show that a cationic conjugated polyelectrolyte with a molecular design containing a polythiophene-porphyrin dyad (PTP) has efficient anticancer and antifungal activities. Upon photoexcitation, energy is efficiently transferred...
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ژورنال
عنوان ژورنال: Physics
سال: 2022
ISSN: ['2624-8174']
DOI: https://doi.org/10.1103/physics.15.144