نتایج جستجو برای: 20 properties
تعداد نتایج: 1439709 فیلتر نتایج به سال:
covered four newminor componentsdesignated mycinamicins X (1), X' (2), XI (3) and XI' (4). From physico-chemical properties, spectroscopic data and chemical degradation studies, these compounds were shown to be analogs ofmycinamicins I (5) and II (6), whose structures are different from compounds 5and 6at the C-ll position. In this paper, wedescribe the isolation and structural elucidation of t...
in this study, the effects of oleothermal modification on physical and mechanical peroperties of fir wood (abeis sp.) blocks were examined. at first, some blocks of fir wood with 5 × 20 × 120 cm dimensions were prepared. the blocks were treated in soybean oil. the effects of 3 factors such as treatments temperature (180and 200 °c), holding time (12 and 15 h) and initial moisture content of wood...
the history of plant’s used for mankind is as old as the start of humankind. initially, people used plants for their nutritional proposes but after the discovery of medicinal properties, this natural ?ora became a useful source of disease cure and health improvement across various human communities. berberis vulgaris is one of the medicinal plants used in iranian traditional medicine. berberis ...
Throughour screening programofbioactive secondary metabolites of microbial origin, we have isolated a new azaphilone-type metabolite, diazaphilonic acid (Fig. 1). In this paper, we report the taxonomy of the producing strain, production, isolation, physico-chemical properties and biological activities of diazaphilonic acid. The mycological characteristics of the producing fungal strain PF1195 (...
A novel complex of calphostin (UCN-1028), which specifically inhibits protein kinase C (PKC) has been isolated from the culture broth of a fungi Cladosporium cladosporioides. Purification of individual components was carried out by silica gel, non-porus resin Diaion HP-20SS and Sephadex LH-20 chromatography, leading to isolation of five closely related components. A, B, C, D and I. Calphostins ...
one of the applications of nanotechnology is use of carbon nanotubes for the targeted delivery of drug molecules. to demonstrate the physical and chemical properties of biomolecules and identify new material of drug properties, the interaction of carbon nanotubes (cnts) with biomolecules is a subject of many investigations. cnts is a synthetic compound with extraordinary mechanical, thermal, el...
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