Results 11 to 20 of about 14,703 (275)

Real-time tracking of phytochrome's ring D orientational changes during Pr photoisomerization: Two Pr isoforms with different photoisomerization yields

open access: yesEPJ Web of Conferences, 2013
Phytochromes' ring D orientational changes are tracked during Z-to-E photoisomerization by polarization resolved femtosecond visible pump-infrared probe spectroscopy. Two distinct Pr isoforms Pr-I and Pr-II exhibit photoisomerization yields of 3% and 29%,
González L.   +7 more
doaj   +2 more sources

From photoisomerization to logic operations: a theoretical study of pseudo-hemiindigo derivatives [PDF]

open access: yesFrontiers in Chemistry
Over the last decades the hemiindigo photoswitches, derived from indigo dye, have gained attention because they uniquely absorb visible light in both isomeric states, making them suitable when high-energy UV light is undesirable.
Christina Eleftheria Tzeliou   +2 more
doaj   +2 more sources

Greener Solvents for the Photoisomerization and Catalytic Heat Release of a Norbornadiene-Based Molecular Solar Thermal Energy Storage System. [PDF]

open access: yesAdv Sci (Weinh)
A Molecular Solar Thermal (MOST) system combining a scalable norbornadiene–quadricyclane photoswitch, a biodegradable solvent, propylene carbonate, and noble and first‐row metal catalysts, is presented. Propylene carbonate boosts photoisomerization quantum yield by 25% compared to toluene, prolongs energy storage by an additional 15 days, and enables ...
Magson L   +8 more
europepmc   +2 more sources

The Impact of the Different Geometrical Restrictions on the Nonadiabatic Photoisomerization of Biliverdin Chromophore [PDF]

open access: yes, 2022
The photoisomerization mechanism of the chromophore of bacterial biliverdin (BV) phytochromes is explored with the nonadiabatic dynamics simulation by using the on-the-fly trajectory surface-hopping method at the semi-empirical OM2/MRCI level ...
Zhenggang, Lan   +11 more
core   +2 more sources

Exploring the Global Reaction Coordinate for Retinal Photoisomerization: A Graph Theory-Based Machine Learning Approach [PDF]

open access: yes, 2023
Unraveling the reaction pathway of photoinduced reactions poses a great challenge owing to its complexity. Recently, graph theory-based machine learning combined with non-adiabatic molecular dynamics (NAMD) has been applied to obtain the global reaction ...
Sraddha, Agrawal   +5 more
core   +2 more sources

Solar E→Z photoisomerization of azo switches [PDF]

open access: yes, 2022
By absorbing light energy, molecular photoswitches can undergo structural changes, store chemical energy, and perform dynamic work, which has profound impacts on the development of stimuli-responsive systems, energy storage/conversion materials ...
Zhao-Yang, Zhang   +3 more
core   +2 more sources

Significant Impact of Deprotonated Status on the Photoisomerization Dynamics of Bacteriophytochrome Chromophore [PDF]

open access: yes, 2022
We report that the photoinduced dynamics of the phytochrome chromophore is strongly dependent on the protonation/deprotonation states of the pyrrole ring.
Zhenggang, Lan   +11 more
core   +2 more sources

Dramatic morphological changes in liposomes induced by peptide nanofibers reversibly polymerized and depolymerized by the photoisomerization of spiropyran

open access: yesFrontiers in Molecular Biosciences, 2023
Cytoskeletons such as microtubules and actin filaments are natural protein assemblies, which dynamically control cellular morphology by reversible polymerization/depolymerization.
Yingbing Liang   +5 more
doaj   +1 more source

Non-Covalent Reversibly Photoconvertible Fluorescent Tags for Wash-Free Protein Labeling. [PDF]

open access: yesAdv Sci (Weinh)
FAST proteins combined with one or two fluorogens undergo reversible fluorescence switching or photoconversion through photoisomerization. At low fluorogen concentration and high light intensity, they act as negative or positive photoswitchers and photoconvertible tags, which are promising for discriminating FAST variants.
Mandal M   +12 more
europepmc   +2 more sources

The role of asymmetry on the photoisomerization of dithienylethene molecule photoswitch [PDF]

open access: yes, 2022
Dithienylethene (DTE) molecular photoswitches have shown to be excellent candidates in the design of efficient optoelectronic devices, due to their high photoisomerization quantum yield (QY), for which symmetry is suggested to play a crucial role.
Edison, Salazar   +2 more
core   +1 more source

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