Results 131 to 140 of about 209,633 (263)
Photosynthetica, 1999 There are several types of quenching coefficients currently in use which describe the decrease of the chlorophyll fluorescence: the photochemical quenching coefficients qP and q(P)rel and the non-photochemical quenching coefficients qN, q(N)rel, and NPQ. These five coefficients were calculated for a broad variety of cases of the fluorescence signals in
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One‐Pot Biphasic Photocatalytic CO2‐to‐Carbonylation Cascades
Angewandte Chemie, EarlyView.Bioinspired biphasic compartmentalization enables one‐pot cascades where photocatalytic CO2 reduction generates CO for carbonylative cross‐couplings to synthesize complex organic products, including a pharmaceutical. ABSTRACT Photosynthesis compartmentalizes reactions across the thylakoid membrane in vivo to upcycle CO2 into complex chemicals that are ...
Sampurna Mitra +3 more
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Non-Photochemical Quenching Capacity in Arabidopsis thaliana Affects Herbivore Behaviour
PLoS ONE, 2013 Under natural conditions, plants have to cope with numerous stresses, including light-stress and herbivory. This raises intriguing questions regarding possible trade-offs between stress defences and growth. As part of a program designed to address these questions we have compared herbivory defences and damage in wild type Arabidopsis thaliana and two ...
Johansson Jänkänpää, Hanna +9 more
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Angewandte Chemie, EarlyView.This review highlights an emerging anticancer approach integrating platinum agents into photodynamic therapy (PDT) and photoactivated chemotherapy (PACT) systems, further augmented by cancer cell membrane‐ and organelle‐targeting. By directing photoactivated platinum complexes from nontargeted distribution to cancer cells or defined subcellular sites ...
Shu Chen +3 more
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One‐Step Access to Ultra‐Bright Macrocyclic Oligo‐BODIPYs Featuring Long‐Lived Cyclic Excitons
Angewandte Chemie, EarlyView.Strong Fluorescence Meets Long Lifetimes: A template‐free, one‐step synthesis affords a series of methylene‐bridged macrocyclic oligo‐BODIPYs combining strong fluorescence with exceptionally long fluorescence lifetimes. Steady‐state and time‐resolved optical spectroscopy reveal unique excitonic coupling conditions and unusual size‐dependent ...
Lukas J. Patalag +10 more
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Plant, Soil and EnvironmentThis study examined the impact of selenomethionine (SeMet) on the growth and physiological traits of Salvia miltiorrhiza seedlings. Application of SeMet significantly improved the photosynthetic performance by reducing stomatal limitation value (Ls) and ...
Yi Luo +3 more
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Anion Engineering of Surface Frustrated Lewis Pairs for Light‐Assisted CO2 Hydrogenation to Methanol
Angewandte Chemie, EarlyView.Anion engineering through nitrogen incorporation regulates the local coordination environment and promotes the formation of defect‐associated Ga–O/N frustrated Lewis pairs in non‐stoichiometric zinc gallium oxide. The engineered surface sites facilitate heterolytic H2 splitting, while the modified electronic structure enhances light utilization ...
Rui Song +27 more
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Revista Chilena de Historia Natural, 2009 The seasonal variation in energy quenching parameters of photosystem II and photoprotective pigments were studied in seedlings and adults of two Proteaceae: a shade-intolerant species (Embotrium coccineum J.R. et G. Forster) and a shade-tolerant species (
MIREN ALBERDI +5 more
doaj
, 2005 Cyanobacteria have previously been considered to differ fundamentally from plants and algae in their regulation of light harvesting. We show here that in fact the ecologically important marine prochlorophyte, Prochlorococcus, is capable of forming ...
Robinson, Colin +7 more
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Conformationally Switchable Copper(I) Complexes Amplify BODIPY Triplet Photosensitization
Angewandte Chemie, EarlyView.Coupling a structurally switchable Cu(I) complex to an organic light‐harvesting chromophore boosts photoinduced intersystem crossing via the transient formation of a Cu(II) intermediate. Spectroscopic, physical, computational, and photocatalytic studies support this unique new approach to solar energy upconversion.
Nisha Kamboj +4 more
wiley +2 more sources