Results 291 to 300 of about 19,750,598 (378)

Donor–Acceptor Interactions of C60F18 with Polycyclic Aromatic Hydrocarbons: Size Effects in Bulk Crystallization and Surface Constraints

open access: yesChemPlusChem, EarlyView.
Donor–acceptor (D/A) interactions between spheroidal C60F18 and three planar polycyclic aromatic hydrocarbons (PAHs)—coronene (CORO), perylene , and pyrene—show a strong dependence on PAH size. X‐Ray diffraction reveals increasing layered stacking (either D/A/D/A or D/A/A/D/A/A).
Nicholas J. DeWeerd   +9 more
wiley   +1 more source

Intensification of Ethylene Carbonate Synthesis via Microwave‐Induced Phase‐Change Cycles

open access: yesChemSusChem, EarlyView.
Microwave‐assisted heating under ambient pressure reflux conditions is applied to intensify the transesterification of ethylene glycol with dimethyl carbonate. The proposed method enhances energy efficiency and product yield compared to conventional heating, enabling lower catalyst loading, reduced process time, and significantly decreased energy ...
Ioannis Papaioannou   +5 more
wiley   +1 more source

A large-scale c-Fos brain mapping study on extinction of cocaine-primed reinstatement. [PDF]

open access: yesNeuropsychopharmacology
Lenoir M   +4 more
europepmc   +1 more source

Mechanochemical and Aging‐Based SN2 Method to Access CO2‐Responsive, High‐Amine‐Loading Chitosan

open access: yesChemSusChem, EarlyView.
We report a green, scalable mechanochemical SN2 method to synthesize CO2‐responsive chitosan with a record‐high amine loading (DS up to 1.67). This one‐pot process functionalizes both amine and alcohol groups using minimal reagents and energy. The resulting biopolymer exhibits reversible pH and osmotic pressure changes upon CO2 exposure, offering a ...
Galen Yang   +5 more
wiley   +1 more source

Optimization of Parallel Artificial Liquid Membrane Extraction for the Determination of Over 50 Psychoactive Substances in Oral Fluid Through UHPLC–MS/MS

open access: yesDrug Testing and Analysis, EarlyView.
This study is related to the development of a microextraction method for the determination of 56 psychoactive substances in oral fluid. Sample clean‐up is obtained by parallel artificial liquid membrane extraction and analyzed by liquid chromatography–tandem mass spectrometry.
Martina Croce   +6 more
wiley   +1 more source

Photoreceptors inhibit pathological retinal angiogenesis through transcriptional regulation of Adam17 via c-Fos. [PDF]

open access: yesAngiogenesis
Wang X   +13 more
europepmc   +1 more source

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