Results 41 to 50 of about 33,864 (335)

Ice Formation in Model Biological Membranes in the Presence of Cryoprotectors [PDF]

open access: yesNuclear Instruments & Methods in Physics Research A 448 (2000) 225-260, 2001
Ice formation in model biological membranes is studied by SAXS and WAXS in the presence of cryoprotectors: dimethyl sulfoxide and glycerol. Three types of phospholipid membranes: DPPC, DMPC, DSPC are chosen for the investigation as well-studied model biological membranes. A special cryostat is used for sample cooling from 14.1C to -55.4C.
arxiv   +1 more source

Nanostructures from self-assembling triazine tertiary amine N-oxide amphiphiles [PDF]

open access: yes, 2013
A new set of amphiphilic tertiary amine N-oxides has been prepared and their self-assembly properties observed in aqueous solution by tensiometry, dynamic and static light scattering.
Adamczyk   +73 more
core   +1 more source

Optical Fingerprints of Polynuclear Complexes in Lead-Halide Perovskite Precursor Solutions [PDF]

open access: yesJ. Phys. Chem. Lett 12, 2299-2305 (2021), 2020
Solvent-solute interactions in precursor solutions of lead halide perovskites (LHP) critically impact the quality of solution-processed materials, as they lead to the formation of a variety of poly-iodoplumbates that act as building blocks for LHP. The formation of [PbI$_{2+n}$]$^{n-}$ complexes is often expected in diluted solutions while coordination
arxiv   +1 more source

EMReact: A Tool for Modelling Electromagnetic Field Induced Effects in Chemical Reactions by Solving the Discrete Stochastic Master Equation [PDF]

open access: yes, 2022
The effects of electromagnetic fields (EMF) have been widely debated concerning their role in chemical reactions. Reactions usually took hours or days to complete, and have been shown to happen a thousand times faster using EMF radiations. This work develops a formalism and a computer program to evaluate and quantify the EMF effects in chemical ...
arxiv   +1 more source

Microwave-assisted photooxidation of sulfoxides

open access: yesScientific Reports, 2021
We demonstrated microwave-assisted photooxidation of sulfoxides to the corresponding sulfones using ethynylbenzene as a photosensitizer. Efficiency of the photooxidation was higher under microwave irradiation than under conventional thermal heating ...
Yuta Matsukawa   +5 more
doaj   +1 more source

Synthesis of Sulfoximines and Sulfonimidamides Using Hypervalent Iodine Mediated NH Transfer

open access: yesMolecules, 2023
The development of NH transfer reactions using hypervalent iodine and simple sources of ammonia has facilitated the synthesis of sulfoximines and sulfonimidamides for applications across the chemical sciences.
Renzo Luisi, James A. Bull
doaj   +1 more source

Flavoprotein monooxygenases for oxidative biocatalysis: recombinant expression in microbial hosts and applications [PDF]

open access: yes, 2014
External flavoprotein monooxygenases comprise a group of flavin-dependent oxidoreductases that catalyze the insertion of one atom of molecular oxygen into an organic substrate and the second atom is reduced to water. These enzymes are involved in a great
Bianchi, Dario Alejandro   +2 more
core   +2 more sources

Synthesis of enantioenriched sulfoxides [PDF]

open access: yes, 2010
This review discusses strategies for the asymmetric synthesis of sulfoxides, compounds with many applications in stereoselective synthesis and in some cases with pharmaceutical application.
Kelly, Padraig   +3 more
core   +1 more source

Urea–hydrogen peroxide prompted the selective and controlled oxidation of thioglycosides into sulfoxides and sulfones

open access: yesBeilstein Journal of Organic Chemistry, 2017
A practical method for the selective and controlled oxidation of thioglycosides to corresponding glycosyl sulfoxides and sulfones is reported using urea–hydrogen peroxide (UHP). A wide range of glycosyl sulfoxides are selectively achieved using 1.5 equiv
Adesh Kumar Singh   +4 more
doaj   +1 more source

Influence of Sulfoxide Group Placement on Polypeptide Conformational Stability. [PDF]

open access: yes, 2019
The synthesis of a homologous series containing five new nonionic sulfoxide containing polypeptides was described. Sulfoxide groups bestowed water solubility for all homologues, which allowed their use as a model for study of helix-coil transitions in ...
Bahrun, Ehab   +2 more
core  

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