Results 61 to 70 of about 209,633 (263)

Using Lifetime and Quenching Rate Constant to Determine Quencher Concentration [PDF]

open access: yes, 2022
Excited state quenching is a key step in photochemical reactions that involve energy or electron transfer. High reaction quantum yields require sufficiently high concentrations of quencher to ensure efficient quenching.
Xena, Soto, John, Swierk
core   +2 more sources

Dehydroascorbate Reductase Affects Non-photochemical Quenching and Photosynthetic Performance [PDF]

open access: yesJournal of Biological Chemistry, 2008
Ascorbic acid (Asc) is a major antioxidant involved in photoprotection and photosynthetic function in plants. Dehydroascorbate reductase (DHAR) catalyzes the regeneration of Asc from its oxidized state and serves as an important regulator of Asc recycling.
Zhong, Chen, Daniel R, Gallie
openaire   +2 more sources

Single‐Chromophore Homojunction Organic Solar Cells: A Path to Simplicity and Efficiency

open access: yesAdvanced Materials, EarlyView.
This perspective discusses how the intrinsic optoelectronic properties of organic semiconductors, their molecular packing in the solid‐state, and internal energetic gradients within a device can enable free‐charge carrier generation in homojunction organic solar cells.
Shaun McAnally   +2 more
wiley   +1 more source

Effects of different N treatments on the photochemical quenching of variable chlorophyll fluorescence (qP) (2015).

open access: yes, 2018
Effects of different N treatments on the photochemical quenching of variable chlorophyll fluorescence (qP) (2015).
Youhong Song (579200)   +7 more
core   +1 more source

Radiative Thermal Management for Extreme Environments: Mechanisms and Design Strategies

open access: yesAdvanced Materials, EarlyView.
In this review, we discuss the fundamental mechanisms of radiative cooling and solar heating, material and structural design strategies, hybrid approaches integrating additional heat transfer pathways, and durability‐oriented designs addressing environmental stresses.
Hyung Rae Kim   +5 more
wiley   +1 more source

Photosynthesis and chlorophyll fluorescence response to low sink demand of tubers and roots in Dahlia pinnata source leaves

open access: yesBiologia Plantarum, 2011
Photosynthetic rate (PN) and chlorophyll (Chl) fluorescence induction of source leaves in response to a low sink demand created by girdling the branch (GB) between the root-tuber-system and the leaves were studied in Dahlia pinnata L. cv.
S. T. Yan   +5 more
doaj   +1 more source

Non-photochemical quenching of biofilms formed by eight strains grown on ITO and glass slides on day 15 (n = 3).

open access: yes, 2014
Non-photochemical quenching of biofilms formed by eight strains grown on ITO and glass slides on day 15 (n = 3).
Adrian C. Fisher (569642)   +4 more
core   +1 more source

Alteration of photosystem II properties with non-photochemical excitation quenching [PDF]

open access: yesPhilosophical Transactions of the Royal Society of London. Series B: Biological Sciences, 2000
Oxygen yield from single turnover flashes and multiple turnover pulses was measured in sunflower leaves differently pre–illuminated to induce either ‘energy–dependent type’ non–photochemical excitation quenching ( q E ) or reversible, inhibitory type non–photochemical ...
A, Laisk, V, Oja
openaire   +2 more sources

The roles of photochemical and non-photochemical quenching in regulating photosynthesis depend on the phases of fluctuating light conditions

open access: yesTree Physiology, 2021
Abstract The induction and relaxation of photochemistry and non-photochemical quenching (NPQ) are not instantaneous and require time to respond to fluctuating environments. There is a lack of integrated understanding on how photochemistry and NPQ influence photosynthesis in fluctuating environments.
Jimei Han   +6 more
openaire   +2 more sources

Charge Storage and Dark Photocatalysis in Multivariate Ti‐Based Metal‐Organic Frameworks

open access: yesAdvanced Materials, EarlyView.
The mixed‐linker series of the titanium‐based metal–organic framework COK‐47 enables systematic tuning of photoresponsiveness and (dark) photocatalytic activity, deepening our understanding of structure‐property‐function relationships. Tailored metal‐to‐ligand charge transfer between the secondary building units (metal‐oxo layers and organic linkers ...
Julia E. Knapp   +11 more
wiley   +1 more source

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