Results 101 to 110 of about 14,703 (275)

Ab Initio Study of Cis−Trans Photoisomerization in Stilbene and Ethylene

open access: yes, 2016
The photochemistry of stilbene is investigated using ab initio quantum chemistry with complete active space self-consistent field (CASSCF) and multireference perturbation theory (CASPT2) methods.
Jason Quenneville (2148445)   +1 more
core   +1 more source

Multidimensionally Programming Photoswitching via Orthogonal Covalent‐Noncovalent Chemistry for Dual‐Track Time‐Resolved Optical Encryption

open access: yesAdvanced Science, EarlyView.
A dual‐track time‐resolved encryption strategy with independent information display during photo‐bleaching and thermal‐recovery stages has been realized through multiple temporal encoding units derived from orthogonal covalent‐noncovalent programming of donor–acceptor Stenhouse adduct photoswitching.
Qi Guo   +11 more
wiley   +1 more source

Influences of Central Units and Terminal Chains on the Banana-Shaped Liquid Crystals

open access: yesCrystals, 2020
Azo-functionalized materials are one of the appealing groups of the functionalized materials owing to their photoswitching behaviour and have been explored for various potential applications viz., optical data storage, sensor, display devices, nonlinear ...
Tang Xin Ting   +2 more
doaj   +1 more source

Supramolecular enantiodifferentiating photoisomerization of cyclooctene with modified beta-cyclodextrins: critical control by a host structure

open access: yes, 2008
Enantiodifferentiating photoisomerization of (Z)-cyclooctene included and sensitized by m-methoxybenzoyl-beta-cyclodextrin gave chiral (E)-isomers in up to 46% enantiomeric excess, which is the highest value ever reported for supramolecular ...
Yang, C   +8 more
core  

Excited-state E → Z photoisomerization mechanism unveiled by ab initio nonadiabatic molecular dynamics simulation for hemithioindigo–hemistilbene

open access: yes, 2017
E-HTI photoisomerization pathways revealed by dynamics simulations.
Yibo Lei   +5 more
core   +1 more source

Photoisomerization and Thermal Isomerization of Arylazoimidazoles

open access: yes, 2016
Photoisomerization and thermal isomerization behaviors of an extensive series of arylazoimidazoles are investigated. Absorption spectra are characterized by a structured ππ* absorption band around 330−400 nm with a tail on the lower energy side extending
Kazuya Suwa (2324137)   +3 more
core   +1 more source

EVALUATION OF THE AVOBENZONE PHOTOSTABILITY IN SOLVENTS USED IN COSMETIC FORMULATIONS

open access: yesVitae, 2011
The use of sunscreen products is very important nowadays. The photostability of UV filters incorporated in these products must be preserved during its storing and application processes in order to achieve the claims about photoprotection of the ...
John Jairo VALLEJO   +2 more
doaj  

Real-Time Tracking of Phytochrome’s Orientational Changes During Pr Photoisomerization

open access: yes, 2016
Photoisomerization of a protein bound chromophore is the basis of the light sensing and signaling responses of many photoreceptors. Z-to-E photoisomerization of the Pr Cph1Δ2 phytochrome has been investigated by polarization resolved femtosecond visible ...
Janina Hahn (2120542)   +7 more
core   +1 more source

Light‐controlled molecular tweezers capture specific amyloid oligomers

open access: yesAggregate
Amyloid‐β peptide (Aβ) oligomers, characteristic symptom of Alzheimer's disease (AD), have been identified as the most neurotoxic species and significant contributors to neurodegeneration in AD.
Chengyuan Qian   +5 more
doaj   +1 more source

Light-Driven Self-Pulsating Hydrogel with a Sliding-Delay Mechanism for Micro-Actuation and Microfluidic Applications

open access: yesMicromachines
Light-responsive hydrogel-based oscillators typically exhibit small oscillation amplitudes because solvent diffusion is intrinsically slow, and their dependence on external periodic light modulation further results in limited amplitude, poor stability ...
Xingui Zhou   +3 more
doaj   +1 more source

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