The biological activity of oxybiotin (1, 2) and of an apparently similar substance (3) has been recently described. Prior to these reports the only compound possessing yeast growth activity comparable to that of biotin was desthiobiotin (4), which exerts its biological activity by virtue of the fact that it is converted into biotin by the yeast cell (5, 6). It was of importance to determine whe...

Amyloidoma can occur within the brain parenchyma. Periventricular amyloidomas developed in a man aged 69 years as gadolinium-enhancing lesions on magnetic resonance imaging. The lesions were composed of amyloid AL lambda with congophilia resistant to potassium permanganate. There was no evidence of systemic amyloidosis or an underlying inflammatory or neoplastic disorder.

We present a facile synthesis of manganese oxide (MnO(2)) nanocomposite with ultraviolet (UV) photosensitive characteristic by a solid-state reaction based on the reduction of potassium permanganate (KMnO(4)) by aniline, which provides a new family and more selectivity for UV photosensitive nanomaterials in the future.

In situ chemical oxidation (ISCO) is one of the effective technologies used for source zone remediation of dense nonaqueous phase liquids (DNAPLs) such as chlorinated solvents in the subsurface environments. In karst systems, DNAPL source zones reside in epikarst where the contaminant is generally trapped in the soil or at the carbonate bedrock contact. The efficiency of oxidation of residual t...

solution of potassium permanganate (drying agent) then covering with a topical steroid cream, for example Betnovate RD (betamethasone) cream often brings about rapid resolution of the condition. Patients should be advised that hyperpigmentation may persist for several months but is best left untreated. Affected skin may remain photosensitive for several months and sunscreens may be needed.

Leucothrix mucor Oersted, the primary cause of filamentous gill disease in cultured shrimp, was treated with algicides and surfactants by a serial dilution method. It was found to be highly sensitive to those algicides containing quaternary ammonium compounds. Copper-containing compounds and Formalin were less effective, whereas potassium permanganate and two surfactants, Dreft and Alconox, wer...