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Prikaz rezultata 81-90 od 1794
In vitro evaluation of antimicrobial activity of the freshwater sponge Ochridaspongia rotunda (Arndt, 1937)
(Taylor & Francis Ltd, Abingdon, 2014)
The antimicrobial activity of five crude extracts (aqueous, methanol, ethyl acetate, acetone and methylene chloride) of the freshwater sponge Ochridaspongia rotunda (Arndt, 1937) was evaluated in vitro by using microdilution ...
Fluorescence lifetime imaging of lignin autofluorescence in normal and compression wood
(Wiley-Blackwell, Hoboken, 2013)
Wood cell walls fluoresce as a result of UV and visible light excitation due to the presence of lignin. Fluorescence spectroscopy has revealed characteristic spectral differences in various wood types, notably normal and ...
A universal fluid cell for the imaging of biological specimens in the atomic force microscope
(Wiley-Blackwell, Hoboken, 2013)
Recently, atomic force microscope (AFM) manufacturers have begun producing instruments specifically designed to image biological specimens. In most instances, they are integrated with an inverted optical microscope, which ...
Anti-quorum sensing activity of selected sponge extracts: a case study of Pseudomonas aeruginosa
(Taylor & Francis Ltd, Abingdon, 2014)
The anti-quorum sensing activities towards the bacterium Pseudomonas aeruginosa PA01 (pyocyanin production, biofilm formation and twitching and flagella motility) of two crude extracts (methanol and acetone) of the freshwater ...
Co(III) complexes of (1,3-selenazol-2-yl)hydrazones and their sulphur analogues
(Royal Soc Chemistry, Cambridge, 2017)
The first Co(III) complexes with (1,3-selenazol-2-yl)hydrazones as an unexplored class of ligands were prepared and characterized by NMR spectroscopy and X-ray diffraction analysis. The novel ligands act as NNN tridentate ...
Hydrothermal conversion of grape pomace: Detailed characterization of obtained hydrochar and liquid phase
(Elsevier Science Bv, Amsterdam, 2016)
In this study, carbonization products of grape pomace (hydrochar and process water) have been thoroughly characterized in order to assess its fuel properties, physico-chemical composition and to optimize its production. ...
Mechanisms of redox interactions of bilirubin with copper and the effects of penicillamine
(Elsevier Ireland Ltd, Clare, 2017)
Toxic effects of unconjugated bilirubin (BR) in neonatal hyperbilirubinemia have been related to redox and/or coordinate interactions with Cu2+. However, the development and mechanisms of such interactions at physiological ...
Lead-free BaBi4Ti4O15 ceramics: Effect of synthesis methods on phase formation and electrical properties
(Elsevier Sci Ltd, Oxford, 2015)
The processing of ferroelectric BaBi4Ti4O15 (BBT) ceramics from powders prepared by conventional solid state reaction (SSR) and mechanochemical activation (MA) has been investigated. It was shown that MA synthesis reduces ...
Total phenol content and total antioxidant activity drop during Tacitus bellus direct shoot organogenesis
(Pleiades Publishing Inc, Moscow, 2015)
Changes in total phenolics content (TPC) and total antioxidant activity (TAA) in different morphogenic stages of Tacitus bellus (L.) Moran and J. Meyran (Crassulaceae) direct shoot organogenesis in vitro were examined. A ...
Zinc concentration in woody and herbaceous plants at Kosmaj area, Serbia
(Parlar Scientific Publications (P S P), Freising, 2015)
In the paper, the content of heavy metal (Zn) in plants of Kosmaj area was analyzed. Concentration of Zn was measured at four locations, in vegetative parts - leaves of ten plants (eight of them were woody plants and the ...