Results 51 to 60 of about 90,453 (337)
Light harvesting in photosystem II [PDF]
Photosynthesis Research, 2013 This review focuses on the light-harvesting properties of photosystem I (PSI) and its LHCI outer antenna. LHCI consists of different chlorophyll a/b binding proteins called Lhca's, surrounding the core of PSI. In total, the PSI-LHCI complex of higher plants contains 173 chlorophyll molecules, most of which are there to harvest sunlight energy and to ...
Croce, R., van Amerongen, H.
openaire +5 more sources
Triplet‐Triplet Annihilation Enhances Photochemical Curing Contrast for Vat‐Based 3D Printing
Advanced Functional Materials, EarlyView.Triplet–triplet annihilation photopolymerization (TTAP) resins enhance curing contrast for digital light processing (DLP) 3D printing compared to conventional Type I and II photopolymerizations at matched optical densities. By exploiting a superlinear initiation response, TTAP preserves fine details, allowing reliable fabrication of complex structures ...
Connor J. O'Dea +2 more
wiley +1 more source
Nature Communications, 2016 There are two common models of photosynthetic light harvesting by photosystem II cores. Here, the authors use structurally sensitive, time resolved infrared pleochroism of single crystals of photosystem II core complexes to probe the exciton ...
Marius Kaucikas +4 more
doaj +1 more source
Frontiers in Plant Science, 2016 Due to the great abundance of genomes and protein structures that today span a broad diversity of organisms, now more than ever before, it is possible to reconstruct the molecular evolution of protein complexes at an incredible level of detail.
Tanai eCardona
doaj +1 more source
Photophosphorylation Associated with Photosystem II [PDF]
Plant Physiology, 1977 Incubation of spinach chloroplast membranes for 90 minutes in the presence of 50 mm KCN and 100 mum HgCl(2) produces an inhibition of photosystem I activity which is stable to washing and to storage of the chloroplasts at -70 C. Subsequent exposure of these preparations to NH(2)OH and ethylenediaminetetraacetic acid destroys O(2) evolution and flow of ...
C F, Yocum, J A, Guikema
openaire +2 more sources
S = 3 Ground State for a Tetranuclear Mn^(IV)₄O₄ Complex Mimicking the S₃ State of the Oxygen Evolving Complex [PDF]
, 2020 The S₃ state is currently the last observable intermediate prior to O–O bond formation at the oxygen-evolving complex (OEC) of Photosystem II, and its electronic structure has been assigned to a homovalent Mn^(IV)₄ core with an S = 3 ground state.
Agapie, Theodor +6 more
core
Advanced Healthcare Materials, EarlyView.This study developed a bioprinted co‐culture system embedding rat pancreatic islets and Scenedesmus sp. microalgae spatially defined in close vicinity. Red light was found optimal to ensure microalgal photosynthesis while maintaining islet viability and functionality. A tailored co‐culture medium supported both cell types.
Finn Dani +7 more
wiley +1 more source
Mechanisms of light harvesting by photosystem II in plants
, 2015 Light harvesting by photosystem II (PSII) in plants is highly efficient and acclimates to rapid changes in the intensity of sunlight. However, the mechanisms of PSII light harvesting have remained experimentally inaccessible.
Amarnath, Kapil +3 more
core +1 more source
Purification and spectroscopic characterization of photosystem II reaction center complexes isolated with or without Triton X-100. [PDF]
, 1996 The pigment composition of the isolated photosystem II reaction center complex in its most stable and pure form currently is a matter of considerable debate.
Dekker, J.P. +4 more
core +2 more sources
POM‐Based Water Splitting Catalyst Under Acid Conditions Driven by Its Assembly on Carbon Nanotubes
Advanced Materials, EarlyView.A newly‐engineered POM‐based electrocatalyst incorporating non‐innocent counter cations exhibits fast kinetics for either the OER or HER under strongly acidic conditions (1 m H2SO4), depending on whether it is assembled on carbon nanotubes (1@CNT) or physically mixed with them (1/CNT). In water‐splitting tests using a two‐electrode setup, these systems
Eugenia P. Quirós‐Díez +8 more
wiley +1 more source