Results 61 to 70 of about 983 (189)

Synthesis, Structure, and Thin Film Optical Properties of a Chiral Benzothiazole‐Derived Squaraine

open access: yesChemPhysChem, Volume 27, Issue 7, 14 April 2026.
Solution‐processed thin films can be sensitive to the choice of solvent and thermal annealing, which we explore for a chiral benzothiazole squaraine. We observe peculiarly shaped excitonic circular dichroism in uniaxially anisotropic thin films, in which the presumed Davydov bands are spatially distributed exclusively into in‐plane (UDC) and out‐of ...
Marvin F. Schumacher   +4 more
wiley   +1 more source

Reversible Switching of Spiropyran Molecules in Direct Contact With a Bi(111) Single Crystal Surface [PDF]

open access: yes, 2017
Photochromic molecular switches immobilized by direct contact with surfaces typically show only weak response to optical excitation, which often is not reversible.
Arruda, Lucas M.   +6 more
core   +1 more source

Unusual Swelling Behavior of Hydrogels Modified with Spiropyran as Appendage or Crosslinker

open access: yesAdvanced Functional Materials, Volume 36, Issue 27, 2 April 2026.
Not so innocent after all—spiropyran crosslinkers in methylenebisacrylamide‐crosslinked poly(acrylamide‐co‐acrylic acid) hydrogels increase crosslinking density, but also, counterintuitively, increase swelling. Charge complexation, cooperative chemo‐mechanical effects, and aggregation may explain these observations.
Michael M. Lerch   +7 more
wiley   +1 more source

Photo-controlled permeation of spiropyran modified gramicidin A ion channel [PDF]

open access: yes, 2006
Thesis (M.S.) University of Alaska Fairbanks, 2006Biomimetic devices show great potential as being molecular sensors of biological species. Gramicidin A (gA) is a well studied ionophore that can be easily modified at the C-terminus to be incorporated ...
Cushing, Gregory W.
core  

The effect of annulation upon the solvatochromic behaviour of related merocyanines [PDF]

open access: yes, 1997
The effect of annulation of the donor and/or the acceptor ring fragments of related merocyanines is discussed with the aid of a theoretical model based on semiempirical calculations performed with the AM1 method.
Marcos Caroli Rezende
core   +1 more source

Performance of DFT functionals for calculating the second-order nonlinear optical properties of dipolar merocyanines [PDF]

open access: yes, 2020
International ...
Beaujean, Pierre   +6 more
core   +3 more sources

Photo‐Responsive Room‐Temperature Phosphorescent Films Exhibiting Photochromism and Time‐Dependent Phosphorescent Colors for Multilevel Anti‐Counterfeiting

open access: yesAdvanced Science, Volume 13, Issue 24, 27 April 2026.
A series of photo‐responsive polymers are prepared by a facile one‐pot in situ synthesis strategy, where RTP modules and photochromic units are systematically integrated into one polymer system. The triplet‐singlet Förster resonance energy transfer (TS‐FRET) between the donor and acceptor enables the material to exhibit time‐dependent phosphorescence ...
Ziyi Bai   +5 more
wiley   +1 more source

Effects of Supramolecular Interactions on E/Z‐Isomerizations in Water and Their Importance for Biological Applications

open access: yesArchiv der Pharmazie, Volume 359, Issue 4, April 2026.
Biomimetic supramolecular hosts in water affect outcomes and behavior of E/Z‐isomerizations. A deeper understanding of such effects can pave the way to understanding photochemical processes in more complex biological environments. The review displays examples of supramolecular hosts affecting the outcomes of E/Z‐isomerizations and subsequently ...
Doğan Akbulut   +2 more
wiley   +1 more source

The Impact of Chemical Modifications on the Photochromism of Spiropyran: A Roadmap to Navigate Powerful Photochromes

open access: yesChemPhotoChem, Volume 10, Issue 4, April 2026.
This review summarizes how even minor chemical modifications can be used to shape spiropyran photochromism. We highlight how substituents, strain, and heteroatoms tune absorption, stability, switching efficiency, and overall photochromic behaviour.
Gianni Pacella, Giuseppe Portale
wiley   +1 more source

Organic photovoltaics: a chemical approach [PDF]

open access: yes, 2010
International audienceThe design of new organic functional molecules able to harvest sun light and efficiently 5 undergo photon to current energy conversion processes is at the forefront of chemical challenges. In this review the fundamental contribution
Bouit, Pierre-Antoine   +4 more
core   +3 more sources

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