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Showing 1 to 20 of 230 for “"DMSO"”.
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NMR Contact Shift and Line-Broadening Studies of Some Transition Metal-DMSO Complexes.
Dimethylsulfoxide (DMSO) is known to be a good ligand towards the formation of DMSO-complexed compounds. This work is concerned with the evaluation of the magnetic and kinetic properties of these compounds in DMSO solution. DMSO-complexed compounds of the transition metal ions, Cu(II), Ni (II), Co …
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The precipitation of candidate drugs on mixing DMSO stock solutions with aqueous buffers
… of candidate drugs from dimethylsulfoxide (DMSO) stock solutions and buffer mixtures has practical importance within the pharmaceutical industry. At the drug discovery stage, mixing of drug DMSO stocks and aqueous buffer is a common procedure for many analyses, such as bioassay screening and …
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Variabilité des concentrations cellulaires phytoplanctoniques de diméthylsulfoniopropionate (DMSP) et de diméthylsulfoxyde (DMSO) en Baie Sud de la Mer du Nord
… and its oxidation product dimethylsulfoxide (DMSO) cellular contents have been frequently observed in cellular stress conditions. To test this, we have first analysed the natural distribution of DMS(P,O) cellular contents in the North Sea. Secondly, we have measured DMS(P,O) cellular contents …
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Electrically Polarised Electrodes in DMSO and DMF electrolytes of Pseudohalide Salts: In situ IR studies supported by EXAFS/XANES and other techniques
… dimethyl formamide (DMF) and dimethyl sulfoxide (DMSO) solutions, with a supporting electrolyte, tetrabutylammonium perchlorate (TBAP), is presented. Cyclic voltammograms, and current-potential data were recorded while the infrared spectral acquisition was in progress for nickel, copper and gold …
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Diffusion of dimethyl sulfoxide in aqueous mixtures and polyelectrolyte gels
… D<sub>BULK</sub>, of dimethyl sulfoxide (DMSO) were measured in free (“bulk”) aqueous mixtures by the capillary method using sulfur-35 labeled DMSO. The value of D<sub>BULK</sub> was found to pass through a minimum at approximately 33 mole percent DMSO as DMSO concentration was increased. …
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Some effects of dimethyl sulfoxide on absorption, translocation, and membrane permeability in plants
The influence of DMSO (dimethyl sulfoxide) on foliar absorption and translocation of herbicides and plant membrane permeability was investigated. Primary leaves of bean (<i>Phaseolus vulgaris</i> L., var. Black Valentine) were treated with ¹⁴C-labeled DMSO, 3,6-dicholoro-<u>o</u>-anisic acid …
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The Effects of Dimethyl Sulfoxide on the Mutagenic Action of Ethyl Methanesulfonate in Drosophila Melanogaster
… due to alkylating agents. Dimethyl sulfoxide (DMSO) provides an effective protection against the mutagenic effects of radiation in many organisms including Drosophila. The major objective of this study was to determine the effects that topical application of DMSO would have on the mutagenic …
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Kinetics of alkali metal ion self-exchange on polystyrene sulfonate resin in dimethyl sulfoxide-water media
… measured over a range of dimethyl sulfoxide (DMSO)-water mixtures from 0 to 70 mole % DMSO. Interpretation of results is simplified by the choice of this system which exhibits relatively constant resin swelling, fairly high dielectric constant and virtually no solvent preference over the …
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The production of biogenic gases in the marine environment
… (DMSP) and dimethylsulfoxide (DMSO) although comparatively little is known about the dynamics of DMSO in the marine environment. This study analysed the production of DMSO by a range of marine phytoplankton species in comparison with DMSP. Algal concentrations of DMSO were …
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Solution Properties of Some Iron and Copper Macrocycles.
… spectral data, and in dimethyl sulfoxide (DMSO) were obtained from atomic absorption analysis. Kinetic data for the dissociation of FePc in pyridine is reported. Magnetic susceptibilities of FePc in pyridine, 2-methylpyridine, 3-methylpyridine, and 4-methylpyridine indicate the formation of …
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The Structure of Solvents Confined to Metal Surfaces
… perchlorate (TBAP) is added to DMSO. Under potential control, positive of the potential of zero charge (PZC), STM reveals the DMSO solvent structure together with the perchlorate anion. The tetrabutylammoniurn cation can not be seen due to the presence of water in the DMSO …
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An investigation of in vitro percutaneous penetration enhancement of benzocaine by azone, dimethylsulfoxide, and 2-pyrrolidone
… (Azone) , dimethylsulfoxide (DMSO) and 2-pyrrolidone (2-P) under conditions of constant thermodynamic activity in the vehicle. The solubilities of benzocaine in Azone and 80/20, 60/40 and 40/60 V/V DMSO/water systems were found to be 254.17, 533.00, 68.60 and 2.51 mg/ml …
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Synthesis characterization, and reactivity of ruthenium maltolato complexes
… The ambidentate nature of dimethyl sulfoxide (DMSO), where it has the ability to coordinate via the sulfur or the oxygen moiety, is also discussed. The DMSO complex, 2, was found to contain two sulfur-bound DMSO ligands, which is the coordination mode expected for a Ru(II) compound. The …
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Determination of Allosteric Solvent Effects Between Acetylcholinesterase and Mosquito Selective Carbamates: Implications for High Throughput Screening of Insecticides
… of these carbamates in the presence of 0.1% DMSO (v/v) resulted in antagonism of inhibition for AgAChE, thus reducing the AgAChE-selectivity by at least 10-fold. However, the presence of 0.1% DMSO did not antagonize the inhibition of human, Drosophila melanogaster, or Musca domestica AChE. …
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ULTRARAPID FREEZING OF MOUSE EMBRYOS
… concentration (3.0-4.5 M) of dimethyl sulfoxide (DMSO) and 0.25 M of sucrose at room temperature before direct plunging into liquid nitrogen. The objective of this study was to determine the efficacy of this technique for the cryopreservation of two-cell mouse embryos under various conditions. …
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ENHANCING CARDIAC TRANSDIFFERENTIATION OF FIBROBLASTS USING SINGLE-CELL TRANSCRIPTOMICS ANALYSIS AND HIGH-THROUGHPUT CHEMICAL LIBRARY SCREENING APPOACHES
… discovered that dimethyl sulfoxide (DMSO) itself improves the efficiency of cardiac transdifferentiation. DMSO treatment increased the percentage of cTnT+ and αMHC-mCherry+ cells by about 4-fold and 6-fold, respectively, and induced higher expression of cardiac genes. Further …
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Influence of lipid antioxidants on soybean seed storage life
… treated with antioxidants in dimethyl sulfoxide (DMSO) to investigate possible protective effects of antioxidants during storage and thus also provide evidence for the lipid peroxidation model of seed aging. The toxicity of DMSO to soybean seed was found to be minimal at treatment times of 15 min …
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Apparent dissolution rate enhancement of poorly-water soluble drugs by adsorption technique
… and carvedilol were used. Methanol, DMF, DMSO and PEG400 were used as solvents and microcrystalline cellulose was used as an adsorbent. Pure model drugs, physical mixtures and prepared composites were characterized by using FTIR, DSC, XRD and dissolution testing. Results showed that the …
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An investigation of some factors affecting transdermal permeation.
… distortion of lipid structures. S.C. exposed to DMSO vapour showed lower endothermic temperatures and higher permeability. Heat above 75°C plus DMSO vapour pre-treatments produced similar permeability as heat alone, indicating a common site of action. Studies of the concentration dependance of …
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Solubilizacao e interacao de pigmentos com solventes organicos e agentes tenso-ativos
… foram solubilizados à 25°C em dimetilsulfóxido (DMSO); N, N-dimetilacetamida (DMA); N,N-dimetilformamida (DMF); N-metil-formamida, formamida, piridina, o-diclorobenzeno, monoclorobenzeno, tolueno, metanol, etanol, propanol-1, propanol-2, butanol-1 e octanol-1. Alguns valores representativos …
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