Results 11 to 20 of about 8,279 (221)

Photochromic property of cerium oxide nanoparticles prepared by dialysis of solution of cerium nitrate

open access: yesResults in Chemistry, 2022
CeO2 nanoparticles were obtained by heating 50 mL of 0.1 M Ce(NO3) 3·6H2O solution mixed with 5 mL of 1 M NH3 aq. at 368 K for 24 h. When H2O and ethanol were used as solvents for cerium nitrate hydrate, obtained CeO2 nanoparticles were aggregated.
Naofumi Uekawa   +2 more
doaj   +1 more source

Absolute measurement of cellular activities using photochromic single-fluorophore biosensors and intermittent quantification

open access: yesNature Communications, 2022
Genetically-encoded biosensors based on a single fluorescent protein are widely used to visualize analyte levels or enzymatic activities in cells, though usually to monitor relative changes rather than absolute values.
Franziska Bierbuesse   +10 more
doaj   +1 more source

Photochromism in inorganic crystallised compounds

open access: yesOptical Materials: X, 2021
Photochromism is a phenomenon describing the irradiation-induced reversible transformation of a chemical compound's colour between two states (dubbed as colour switch). This review makes an up-to-date account of inorganic photochromic compounds.
Y. Badour   +4 more
doaj   +1 more source

Simultaneous readout of multiple FRET pairs using photochromism

open access: yesNature Communications, 2021
Performing multiple FRET measurements at once can be challenging. Here the authors report a method to discriminate between overlapping FRET pairs, even if the fluorophores display almost identical absorption and emission spectra, based on the ...
Thijs Roebroek   +6 more
doaj   +1 more source

Polyoxometalate Based Organic-Inorganice Nanocomposites

open access: yesEurasian Chemico-Technological Journal, 2004
The organic-inorganic nanocomposites were synthesized by sol-gel techniques. The constructed film renders photochromism, which can be tuned by choosing suitable polyoxometalates (POM). The molybdenum POMs show better photochromism than the tungsten POMs,
S. Shanmugam   +2 more
doaj   +1 more source

Effect of Surface Properties on the Photo-Induced Crawling Motion of Azobenzene Crystals on Glass Surfaces

open access: yesFrontiers in Chemistry, 2021
Photo-induced crawling motion of a crystal of 3,3′-dimethylazobenzene (DMAB) on a glass substrate having different surface properties was studied. When exposed to UV and visible lights simultaneously from different directions, crystals crawl continuously
Yasuo Norikane   +11 more
doaj   +1 more source

Electron paramagnetic resonance and photochromism of $\mathrm{N}_{3}\mathrm{V}^{0}$ in diamond [PDF]

open access: yes, 2017
The defect in diamond formed by a vacancy surrounded by three nearest-neighbor nitrogen atoms and one carbon atom, $\mathrm{N}_{3}\mathrm{V}$, is found in $\approx98\%$ of natural diamonds.
Breeze, B. G.   +2 more
core   +2 more sources

Synthesis and Properties of Dipyridylcyclopentenes [PDF]

open access: yes, 2005
A short and general route to the substituted dipyridylcyclopentenes was explored and several new compounds belonging to this new group of diarylethenes were synthesized.
Ben L. Feringa   +6 more
core   +2 more sources

Synthesis and photochromism of catechol-containing symmetrical azobenzene compounds

open access: yesRoyal Society Open Science, 2022
Symmetrical azobenzene derivatives with two catechol groups, 1d–4d, were synthesized as kinds of novel compounds, and the structures were confirmed using mass spectrometry and nuclear magnetic resonance spectroscopy.
Suju Fan   +3 more
doaj   +1 more source

Photochromism, UV-Vis, Vibrational and Fluorescence Spectroscopy of Differently Colored Hackmanite

open access: yesCrystals, 2023
Because of the rich fluorescent color and unique photochromic properties, hackmanite has attracted many mineralogists. In this paper, the basic gemmological characteristics and photochromic and fluorescence mechanisms of four different colors of ...
Chuchu Song   +4 more
doaj   +1 more source

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