Results 81 to 90 of about 403,555 (400)
Rotational Isomers of Diphenhydramine
YAKUGAKU ZASSHI, 2018 Diphenhydramine (DP), an antihistaminic agent, may become colored and daker or more fluorescent during storage. Herein, we spectroscopically examined the causes of this phenomenon under various DP storage conditions and durations. The infrared vibration-rotation spectrum shows multiple Gauche (G)-type conformers with different intramolecular n→π ...
Matsue, Ebitani, Toshiaki, Ebitani
openaire +3 more sources
The interstellar chemistry of H2C3O isomers [PDF]
Monthly notices of the Royal Astronomical Society, 2015 We present the detection of two H2C3O isomers, propynal and cyclopropenone, toward various starless cores and molecular clouds, together with upper limits for the third isomer propadienone.
J. Loison +8 more
semanticscholar +1 more source
Light Switchable Ionic Conductivity of Arylazopyrazole Modified Polysiloxanes
Advanced Materials Technologies, EarlyView.We present a polysiloxane functionalized with a novel arylazopyrazole dye that undergoes reversible photoisomerization. Upon lithium bis(trifluoromethanesulfonyl)imide addition and UV irradiation, the polymer exhibits a shift in tan(d) toward higher frequencies and enhanced ionic conductivity.
Malte S. Beccard +7 more
wiley +1 more source
ChemosensorsSynthetic cathinones are among the most frequently encountered classes of new psychoactive substances, and many occur as structural isomers sharing identical molecular formulas and highly similar mass-spectral features. Among them, substituted cathinones
Shih-Rong Lin +5 more
doaj +1 more source
Stereoisomers of Colourless Carotenoids from the Marine Microalga Dunaliella salina
Molecules, 2020 Carotenoids comprise a diverse range of naturally occurring stereoisomers, which differ in their physico-chemical properties. Their biosynthesis begins with phytoene, which is a rarity among carotenoids because it is colourless.
Laura Mazzucchi +2 more
doaj +1 more source
Understanding Interfacial Photoswitching Mechanisms in Atomically‐Thin TMD‐Spiropyran Hybrids
Advanced Materials Technologies, EarlyView.Photochromic molecules can effectively modulate the optoelectronic properties of atomically thin transition metal dichalcogenide semiconductors. Spiropyran that switches its chemical configuration upon alternating UV and visible irradiation enables light‐programmable optoelectronic devices.
Sewon Park +8 more
wiley +1 more source
Advanced Optical Materials, EarlyView.Positional isomerism in dibenzofuran‐based n‐type hosts modulates molecular polarity, charge‐transport balance, and emissive‐layer packing. The higher‐polarity BFPDB‐2 host facilitates efficient energy funneling, reduced aggregation, and preferential dipole orientation, leading to phosphor‐sensitized fluorescence OLEDs with enhanced external quantum ...
Nargis Ali +3 more
wiley +1 more source
Targeting Lactate and Lactylation in Cancer Metabolism and Immunotherapy
Advanced Science, EarlyView.Lactate, once deemed a metabolic waste, emerges as a central regulator of cancer progression. This review elucidates how lactate and its epigenetic derivative, protein lactylation, orchestrate tumor metabolism, immune suppression, and therapeutic resistance.
Jiajing Gong +5 more
wiley +1 more source
Biological production of CLA and investigation of anticarcinogenic activity [PDF]
, 2003 This study investigated a potential mechanism of action underlying the anticancer activity of conjugated lmoleic acid (CLA), referring to a mixture of positional and geometric conjugated isomers of lmoleic acid Ras, an oncogene necessary for normal cell ...
McGrath, Emma
core
, 2005 B3LYP/6-311+G** calculations are employed to study the structures, stabilities of 1,2 (syn) and the 1,3 (anti) tautomeric forms of porphyrin isomers with varying meso-bridge lengths.
G. Narahari Sastry +5 more
core +1 more source