Oxidation of Dimethyl Sulfide to Dimethyl Sulfoxide by Phototrophic Purple Bacteria

Oxidation of dimethyl sulfide to dimethyl sulfoxide by phototrophic purple bacteria.

Enrichment cultures of phototrophic purple bacteria rapidly oxidized up to 10 mM dimethyl sulfide (DMS) to dimethyl sulfoxide (DMSO). DMSO was qualitatively identified by proton nuclear magnetic resonance. By using a biological assay, DMSO was always quantitatively recovered from the culture media. DMS oxidation was not detected in cultures incubated in the dark, and it was slow in cultures exp...

Stabilization of enveloped viruses by dimethyl sulfoxide.

In a recent review on the storage of animal viruses at subzero temperatures (8), it was pointed out that enveloped viruses present special problems. For example, herpesvirus even at -90 C loses infectivity after prolonged storage and at -20 C is even more labile than at 4 C. Repeated freezings and thawings of this virus result in marked loss in activity. Members of the herpesvirus group can be ...

Alteration of myoblast phenotype by dimethyl sulfoxide.

Application of dimethyl sulfoxide to proliferating L8 myoblasts (an established cell line of rat skeletal muscle) for 72 hr completely prevented fusion and induction of creatine phosphokinase (EC 2.7.3.2) activity (an indicator of muscle differentiation). The growth pattern changed from the usual sheets of randomly oriented cells to flattened, whorled monolayers of elongated fibroblast-like cel...

DFT study of dimers of dimethyl sulfoxide in gas phase

Density functional (DFT) calculations at M05-2x/aug-cc-pVDZ level were used to analyze the interactions between dimethyl sulfoxide (DMSO) dimers. The structures obtained have been analyzed with the Atoms in Molecules (AIMs) and Natural Bond Orbital (NBO) methodologies. Four minima were located on the potential energy surface of the dimers. Three types of interactions are observed, CH•••O, CH•••...

Clinical Considerations of Dimethyl Sulfoxide