Results 41 to 50 of about 983 (189)

Thermal reversion of spirooxazine in ionic liquids containing the [NTf2]- anion [PDF]

, 2009
We have compared the rate of thermal reversion of Spirooxazine (SO) from its merocyanine (MC) form within ionic liquids and molecular solvents. Et(30) and Kamlet-Taft parameter studies indicate ILs are comparable to polar protic and aprotic solvents. The
Angelini, Bailllet, Berkovic, Burrell, Byrne, Canongia Lopes, Canongia Lopes, Chernyshev, Chiappe, Chibisov, Consorti, Crowhurst, Crowhurst, Deetlefs, Dermot Diamond, Dupont, Dupont, Dzyuba, Figueras, Gordon, Hemeon, Inoue, Iwata, Jin, Lee, Levitus, Lewandowski, Marevtsev, Mellein, Minkin, Minkovska, Parthenopoulos, Reichardt, Reichardt, Robert Byrne, Rodrigues, Simon Coleman, Stela Minkovska, Sueishi, Wetzler, Zhang   +40 more
core   +1 more source

Merocyanines Derived from Oxazolone

, 1970
Merocyanines, derived from different 2-aryl oxazolone as the acidic nuclei and various basic nuclei like 2-methyl 4-phenyl thiazola, 2-methyl benzothiazole, quinoline-2, quinoline-4 and alpha-picoline have been studied with a view to examining the effect of different substituents present at the position-2 of the oxazolone nucleus on the absorption and ...
E. Jena, P. B. Tripathy
openaire   +1 more source

Light‐Programmable Interfaces: From Molecular Photoswitching to Adaptive Membrane Separations

Advanced Materials Interfaces, EarlyView.
This review advances an interface‐centered framework for light‐responsive membranes, linking molecular photoswitches (azobenzene (AZO), spiropyran (SP), diarylethene (DAE), donor–acceptor Stenhouse adducts (DASA), photoacid) to integration strategies in polymeric, porous, self‐assembled, and mixed‐matrix systems.
Liangliang Zhang, Senlin Gu, Jianyang Zhao, Xiaojuan Hao, Lu Hua Li, Jihua Li, Lingxue Kong   +6 more
wiley   +1 more source

Dynamic Control of Nucleic Acids Self‐Assembly and Expression Using Photoswitches

Chemistry – A European Journal, EarlyView.
We review here the recent progress made in the design of molecular photoswitches, and highlight their implementation for the dynamic control over nucleic acids self‐assembly and expression. ABSTRACT Synthetic nucleic acids have become readily available and now constitute versatile building blocks in materials science—where they can be used to engineer ...
Noemí Nogal, Hugo Laigle, Maxime Mansy, Sébastien Ulrich, Mathieu Surin   +4 more
wiley   +1 more source

A novel fluorescent sensor protein for detecting changes in airway surface liquid glucose concentration. [PDF]

, 2014
Both lung disease and elevation of blood glucose are associated with increased glucose concentration (from 0.4 to ~4.0 mM) in the airway surface liquid (ASL).
Baker, Baker, Baker, Barker, Brodlie, Chang, Cheng, Christopher J. MacNevin, Deborah L. Baines, Dubin, Faaizah Khan, Forrest, Garnett, Garnett, Garnett, Garnett, Garnett, Garnett, Gill, James P. Garnett, John C. Pickup, Joo, Kalsi, Kalsi, Khan, Khan, Klaus M. Hahn, Machacek, MacNevin, Matthew Farrant, Nordine Helassa, Pezzulo, Pezzulo, Philips, Pickup, Randell, Robert Tarran, Saumon, Saxl, Shen, Tarran, Thomas, Torok, Toutchkine, Toutchkine, Wood   +45 more
core   +3 more sources

Neue Versuche mit Spiropyran: Photometrie, NMR‐Spektroskopie und On‐Water‐Synthese

CHEMKON, EarlyView.
Reaktionskinetik wird häufig als schwierig, theoretisch und Mathematik‐lastig empfunden, weshalb experimentelle Zugänge für diesem Themenbereich notwendig sind. In diesem Beitrag werden entsprechende Versuche zur Reaktionskinetik vorgestellt, bei denen das Farbstoffsystem eines Spiropyrans und dessen isomerer Merocyanin‐Form untersucht wird.
Marcel Emmert, Jordan Karg, Katja Flora Weirauch   +2 more
wiley   +1 more source

Solvation simplified [PDF]

, 2010
The effects of solvents on chemical phenomena is complex because there are various solute-solvent interaction mechanisms. Solvatochromism refers to the effects of solvents on the spectra of probes. The study of this phenomenon sheds light on the relative
EL SEOUD, Omar A.
core   +2 more sources

Photochromic carbazole photoinitiators for precision visible‐light photopolymerization

Polymer International, EarlyView.
New carbazole–naphthopyran derivatives were employed as visible‐light‐activated photoinitiators, enabling rapid and localized radical photopolymerization to produce well‐defined thin solid objects within minutes. Abstract Two carbazole derivatives, each incorporating a naphthopyran unit and an aromatic ketone, were synthesized and evaluated as ...
Mauro Magalhães, Céu M Sousa, José R Fernandes, Paulo J Coelho   +3 more
wiley   +1 more source

Quantifying Dual‐Color Photopolymerization in Xolography via Raman Spectroscopy

Journal of Polymer Science, EarlyView.
A dual‐wavelength Raman spectroscopy workflow is presented for the quantitative assessment of dual‐color photoinitiators. Contrast and efficiency parameters are extracted from in situ curing curves and spatial Raman mapping is used to find inhomogeneities in printed objects.
Nele Lange, Torsten Döhler, Martin Herder, Yves Garmshausen, Friedhelm Heinrich, Christian Dreyer, Mandy Hofmann, Claus Villringer, Michael Herzog, Stefan Hecht, Martin Regehly   +10 more
wiley   +1 more source

Synthesis and characterisation of spiropyran-polymer brushes in micro-capillaries: towards an integrated optical sensor for continuous flow analysis [PDF]

, 2011
Fused silica-capillaries were successfully functionalised with spiropyran-polymer brushes using spiropyran functionalised norbornyl derivative as monomer. The polymerisation was achieved by surface-initiated ring- opening metathesis polymerisation.
Benito-Lopez, Fernando, Diamond, Dermot, Florea, Larisa, Hennart, Alexandre   +3 more
core   +1 more source