Results 91 to 100 of about 8,279 (221)

Functionalization of photochromic dithienylmaleimides

open access: yesRSC Advances, 2015
Synthetic routes for the functionalization of photochromic dithienylmaleimides at three different positions are reported.
Wutz, Daniel   +3 more
openaire   +3 more sources

Substituent effects in N-acetylated phenylazopyrazole photoswitches

open access: yesBeilstein Journal of Organic Chemistry
Phenylazopyrazole photoswitches proved to be valuable structural motifs for various applications ranging from materials science to medicine. Despite their potential, their structural diversity is still limited and a larger pool of substitution patterns ...
Radek Tovtik   +4 more
doaj   +1 more source

Importance of evaluating the intensity dependency of the quantum efficiency : impact on LEDs and persistent phosphors [PDF]

open access: yes, 2018
The quantum efficiency is a key metric in lighting technology and for the quantification of luminescent processes, indicating how many photons are emitted with respect to the number of absorbed photons. Ideally, this value should approach unity to reduce
Joos, Jonas   +2 more
core   +2 more sources

Influence of Binder Type on Color Characteristics of Cotton Fabric Colored with a Photochromic Colorant

open access: yesJournal of Natural Fibers, 2018
Photochromic colorants change rapidly and reversibly from colorless to colored state when activated by ultraviolet radiation. They can be applied on textile substrates with use of organic binders.
Vandana Jalan, Bhupendra Singh Butola
doaj   +1 more source

Photochromic organic-inorganic hybrid materials [PDF]

open access: yes, 2011
Este artículo ha sido publicado como parte del número especial dedicado a Hybrid materialsPhotochromic organic-inorganic hybrid materials have attracted considerable attention owing to their potential application in photoactive devices, such as optical ...
Levy, David   +2 more
core   +1 more source

Photochromic rotaxanes and pseudorotaxanes

open access: yesPhotochemical & Photobiological Sciences, 2019
Among stimulus-responsive molecular ring-on-thread rotaxanes and pseudorotaxanes, variants incorporating photochromic sub-units are attracting considerable attention as their properties and structure can be remotely and precisely controlled, additionally without producing chemical waste. The focus herein is on photoswitching-driven assembly/disassembly
Shilin, Yu   +2 more
openaire   +2 more sources

Real-time sweat pH monitoring based on a wearable chemical barcode micro-fluidic platform incorporating ionic liquids [PDF]

open access: yes, 2012
This work presents the fabrication, characterisation and the performance of a wearable, robust, flexible and disposable chemical barcode device based on a micro-fluidic platform that incorporates ionic liquid polymer gels (ionogels).
Beauchamp   +41 more
core   +1 more source

Novel photochromic 2,2´-bithiophene azo dyes [PDF]

open access: yes, 2009
The photochromic behaviour of two series of 2,2’-bithiophene azo dyes in THF solutions was studied. The photochromic properties and colour constancy were strongly dependent on the substitution pattern of the dyes.
Carvalho, Luís H. Melo de   +3 more
core   +1 more source

Synthesis of photo- and ionochromic N-acylated 2-(aminomethylene)benzo[b]thiophene-3(2Н)-ones with a terminal phenanthroline group

open access: yesBeilstein Journal of Organic Chemistry
A series of novel photo- and ionochromic N-acylated 2-(aminomethylene)benzo[b]thiophene-3(2Н)-ones with a terminal phenanthroline receptor substituent was synthesized.
Vladimir P. Rybalkin   +7 more
doaj   +1 more source

Photochromism of dihydroquinolines [PDF]

open access: yes, 1970
Reversible photochromic reactions, in which absorption spectrum of chemical compound may be shifted by application of visible or ultraviolet light, and then returned to original state by heating, are observed for certain members of 1,2-dihydroquinoline ...
Becker, R. S., Kolc, J.
core   +1 more source

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