Results 111 to 120 of about 21,000 (274)
Advanced Energy Materials, EarlyView.Organic photoelectrochemical cells based on π‐conjugated semiconductors offer a versatile platform for solar fuel generation. This review outlines operating principles, device architectures, and key metrics, and highlights advances in p‐ and n‐type photoelectrodes, interfacial engineering, and catalyst integration.
Jaehyeong Kim +8 more
wiley +1 more source
Direct δ‐Lactone Synthesis From Free Alcohols via Photoinduced δ‐C(sp3)–H Carbonylation in Flow
Angewandte Chemie, EarlyView.Herein, we have developed a photo‐flow platform for the δ‐C(sp3)─H carbonylative lactonization of free alcohols with carbon monoxide. The transformation integrates alkoxyl radical generation, selective 1,5‐HAT, CO incorporation, and radical–polar crossover to enable direct access to δ‐lactones from simple alcohol precursors.
Prakash Chandra Tiwari +2 more
wiley +2 more sources
Phytoplankton adaptation to marine ecosystems: insights into photophysiological functional diversity
, 2011 The aim of this study was to investigate the diversity of the photoprotective responses activated by phytoplankton at short temporal scales, i.e. the non-photochemical quenching of Chl a fluorescence (NPQ) associated with the xanthophyll cycle (XC ...
Giovagnetti, Vasco
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H2-laser photochemical study of the temperature dependent quenching of O2(b 1[Sigma]g+)
, 1980 Kohse-Höinghaus K, Stuhl F. H2-laser photochemical study of the temperature dependent quenching of O2(b 1[Sigma]g+). The Journal of Chemical Physics.
F. Stuhl +3 more
core +1 more source
Animal Models and Experimental Medicine, EarlyView.Diabetes combined with ischemic stroke (DMIS) exacerbates brain infarct size and neuronal damage compared to nondiabetic ischemic stroke (IS). This study reveals that microRNA‐34a (miR‐34a) plays a key role in DMIS pathogenesis: miR‐34a directly targets and suppresses brain‐derived neurotrophic factor (BDNF) and Sine oculis homeobox 3 (SIX3), promoting
Ling Zhao +5 more
wiley +1 more source
Angewandte Chemie, EarlyView.Molecular recognition guest binding can comprehensively modulate photoinduced charge‐transfer dynamics in the cyclophane host, including charge separation and recombination, via coherent superexchange and incoherent hopping. Unlike covalent donor–bridge–acceptor systems, this supramolecular approach avoids tedious syntheses and offers precise tuning of
Xueze Zhao +11 more
wiley +2 more sources
Quenching of excited uranyl ion during its photochemical reduction by triphenylphosphine: Part III [PDF]
, 1993 517-520Relative rates of bimolecular quenching of excited uranyl ion by some mono and disubstituted benzene derivatives have been measured during its photochemical reduction with triphenylphosphine. For the related compounds in a series it has been found
Sidhu, M S, Singh, R J, Chahal, Paramjit
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Angewandte Chemie, EarlyView.Cyclopentadienes (CpHs) are fundamental building blocks with widespread applications in chemistry. However, their inherent acidity and isomeric instability have long limited access to chiral variants in an asymmetric fashion. Here, we introduce a CuH‐catalyzed asymmetric transformation that provides an unprecedented entry into a new class of ...
Piero Soppelsa +4 more
wiley +2 more sources
Horticulturae, 2018 Paclobutrazol (PBZ) has been associated with effects on the photosynthetic capacity of plants. PBZ affects the growth and development of plants in general.
Xing Xia +3 more
doaj +1 more source
Systems biophysics: Global and target analysis of light harvesting and photochemical quenching in vivo [PDF]
, 2018 Systems biophysics can describe the input to a photo-synthetic system and thus contribute a building block to the systems biology of photosynthesis. Systems bio-physics mathematically describes the processes during the light reactions of photosynthesis ...
van Stokkum, Ivo; id_orcid
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