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Приказ резултата 11-20 од 4773
Bacillus amyloliquefaciens laccase - From soil bacteria to recombinant enzyme for wastewater decolorization
(Elsevier Sci Ltd, Oxford, 2013)
One hundred wild type strains of Bacillus sp. were isolated from industrial and agricultural soil across Serbia and screened for laccase activity. Three strains showed high laccase activity temperature optimum of 65 and ...
Occurrence of synthetic musk compounds in surface, underground, waste and processed water samples in Belgrade , Serbia
(Springer, New York, 2017)
This study assessed the state of waters in Belgrade regarding pollution with musk compounds as the target contaminants. Eleven of these compounds were alicyclic, two were macrocyclic, and one was polycyclic. Solid-phase ...
Levels of toxic elements in canned fish from the Serbian markets and their health risks assessment
(Academic Press Inc Elsevier Science, San Diego, 2018)
A total of 138 samples of canned tuna, sardines and mackerel from the Serbian market were analyzed for toxic (As, Cd, Pb, Hg) element levels using ICPMS. The highest average contents of toxic elements were found to be 1.70 ...
Formation of two-dimensional (2D) lead dendrites by application of different regimes of electrolysis
(Springer, New York, 2012)
Electrodeposition of lead from nitrate electrolyte in constant regimes of electrolysis was analyzed and the obtained powder lead deposits were examined by scanning electron microscopy. Polarization curve for lead ...
Synthesis of modified 5,10:8,14-bisfragmentation cholestane derivatives
(Serbian Chemical Society, 1996)
In this paper is described a synthetic pathway to the modified 5, 10:8, 14-bisfragmentation cholestene derivatives 10, 11 and 12, which involves introduction of the Δ8(14)-double bond and 5α-hydroxyl group in the cholestane ...
Heracleum orphanidis: chemical characterisation, and comparative evaluation of antioxidant and antimicrobial activities with specific interest in the influence on Pseudomonas aeruginosa PAO1
(Royal Soc Chemistry, Cambridge, 2016)
GC-FID and GC-MS were used to determine the chemical composition of the essential oil of the aerial parts of Heracleum orphanidis Boiss. Also, the HPLC-DAD/ESI-ToF-MS profile of the methanol extracts of aerial parts and ...
Synthesis and preliminary screening for the biological activity of some steroidal Δ4-unsaturated semicarbazone derivatives
(Elsevier, 2019)
Eleven new steroidal mono- and bis(semicarbazones) 2a–e, 4d and 3a–e have been prepared starting from various 3-oxo-α,β-unsaturated steroids. Mono-semicarbazones 2a–e were further subjected to ethyl chloroacetate in boiling ...
Synthesis and preliminary screening for the biological activity of some steroidal Δ4-unsaturated semicarbazone derivatives
(Elsevier, 2019)
Eleven new steroidal mono- and bis(semicarbazones) 2a–e, 4d and 3a–e have been prepared starting from various 3-oxo-α,β-unsaturated steroids. Mono-semicarbazones 2a–e were further subjected to ethyl chloroacetate in boiling ...
Absorption and fluorescence spectral properties of azo dyes based on 3-amido-6-hydroxy-4-methyl-2-pyridone: Solvent and substituent effects
(Elsevier, 2020)
A series of nine 5-(4-substituted phenylazo)-3-amido-6-hydroxy-4-methyl-2-pyridones were synthesized and characterized by FT–IR, 1H and 13C NMR, UV–Vis, and PL spectroscopy. Photophysical properties of the dyes were examined ...
Breaking news: Empirical formulas, molar masses, biosynthesis reactions, and thermodynamic properties of virus particles, biosynthesis and binding of Omicron JN.1 variant of SARS-CoV-2 / Ударне вести: емпиријске формуле, моларне масе, реакције биосинтезе и термодинамичке особине вирусних честица, биосинтезе и везивања Omicron JN.1 варијанте SARS-CoV-2
(Serbian Chemical Society, 2024)
Breaking news are usually disturbing. Natural disasters, wars, epidemics etc. are reported as breaking news. This paper reports a decreased danger of spreading of epidemics caused by the JN.1 variant, since analyses indicate ...