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Effects of different polymers and solvents on crystallization of the NaYF4:Yb/Er phase
(Springer, 2020)
Up-converting NaYF4:Yb,Er nanoparticles were obtained by polymer-assisted solvothermal synthesis using a common solution of hydrated RE nitrates in ethanol or ethylene glycol. It was shown that polymer choice (polyacrylic ...
Bray–Liebhafsky oscillatory reaction as the matrix system for the kinetic determination of microquantities of alizarin and purpurin
(Springer Nature Switzerland AG 2020, 2020)
Two hydroxyanthraquinones, alizarin and purpurin, that have been used throughout
history as a natural pigment, were extracted from roots of Rubia tinctorum from
Serbia. As substances with important chemical activities ...
QSRR model for predicting retention indices of geraniol chemotype of Thymus serpyllum essential oil
(Taylor & Francis, 2020)
A total of 26 experimentally obtained retention indices on a logarithmic scale (log RI) from
Thymus serpyllum essential oil were used to build a robust predictive model. The selected descriptors were
used as inputs of ...
Light-transmitting Measurements through Starch-coated Cobalt Ferrite Ferrofluids Exposed to an External Magnetic Field
(Springer, 2021)
The light-transmitting measurements at the 655 nm wavelength were performed through starchcoated cobalt ferrite ferrofluids synthesized by well-established synthetic methods, i.e., coprecipitation, mechanochemical, ...
Thin-layer chromatography in bioassays of antimicrobial compounds from plants
(USA :Taylor & Francis INC, 2021)
Growing antibiotic resistance creates a need to find new antimicrobial agents characterized by diverse chemical structures and pharmaceutical activity. The higher plants synthesize many specialized metabolites as a part ...
Synthesis and Antimicrobial Activity of (3-Formyl-4-hydroxybenzyl)triphenylphosphonium Chloride Acylhydrazones
(Springer, 2020)
In this study, four novel quaternary phosphonium acylhydrazones, derivatives of (3-formyl-4-hydroxybenzyl)triphenylphosphonium chloride, have been synthesized and their structures elucidated from IR and NMR spectra, and ...
Ideal efficiency of resonant cavity-enhanced perovskite solar cells
(Springer Science and Business Media LLC, 2020)
Perovskite solar cells (PSCs) have attracted significant attention in recent years due to the rapid increase in device efficiency (reaching over 25% in 2019), ease of fabrication, and the potential to produce low-cost ...
Seasonal Dynamics of Cyanobacteria and Algae in Biofilm from the Entrance of Two Caves
(Taylor & Francis, 2020)
Aerophytic phototrophs, colonizers of different substrates exposed to air, among which are rock substrates in cave habitats, are in general not sufficiently investigated and studied. From the ecological point of view, ...
Equilibrium fluctuations in chemical reactions: a viable source of random data (numbers, maps and sequences)
(Springer Nature, 2021)
Random sequences and maps are essential for the applications in cryptography and many other fields in Information Technologies. To achieve true randomness, one still needs to refer to natural phenomena, be it physical, ...