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Protective Face Masks: Current Status and Future Trends
(American Chemical Society, 2021-12-08)
Management of the COVID-19 pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has relied in part on the use of personal protective equipment (PPE). Face masks, as a representative example of ...
Simultaneous separation and determination of quinolones in pharmaceuticals by micellar liquid chromatography
(Taylor & Francis, 2010)
A rapid and simple liquid chromatographic procedure using micellar mobile phases is reported for the separation and determination of four quinolones (pipemidic acid, levofloxacin, norfloxacin and moxifloxacin) in ...
Two-dimensional Bloch electrons under strong magnetic modulation
(American Physical Society, 2011-01-13)
The band structure of a high-mobility two-dimensional electron gas patterned with a square lattice of holes (antidots) is studied theoretically under the influence of a magnetic modulation consisting of perpendicular ...
Does glycosyl transfer involve an oxacarbenium intermediate? Computational simulation of the lifetime of the methoxymethyl cation in water
(International Union of Pure and Applied Chemistry, 2011)
2D free-energy surfaces for transfer of the methoxymethyl cation between two water molecules are constructed from molecular dynamics (MD) simulations in which these atoms are treated quantum-mechanically within a box of ...
On the reversed crystal growth of BaZrO3 decaoctahedron: shape evolution and mechanism
(Royal Society of Chemistry, 2011)
BaZrO3 (BZO) nanoparticles were nucleated, grown and subsequently self-assembled into a 3D
decaoctahedronal architecture via a microwave-assisted hydrothermal (MAH) method. X-Ray
diffraction (XRD), field emission scanning ...
Describing the molecular mechanism of organic reactions by using topological analysis of electronic localization function
(Bentham Science Publishers, 2011)
Here, we provide an essay on the analysis of the reaction mechanism at the molecular level; in particular, the evolution of the electron pair, as it is provided by the ELF, is used to decribe the reaction pathway. Then, ...
An Initial Approach to the Presence of Pharmaceuticals in Wastewater from Hospitals in Colombia and Their Environmental Risk
(MDPI, 2022-03-18)
Hospital wastewater (HWW) from three different cities in Colombia was characterized.
Wastewater quality indicators and 38 relevant pharmaceuticals were examined. The HWW had pH
from 6.82 to 8.06, chemical oxygen demand ...
Photolumiscent properties of nanorods and nanoplates Y2O3:Eu3+
(Springer Verlag, 2011)
Nanorods and nanoplates of Y2O3:Eu3+ powders were synthesized through the thermal decomposition of the Y(OH)3 precursors using a microwave-hydrothermal method in a very short reaction time. These powders were analyzed by ...
Effect of interface alloying and band-alignment on the Auger recombination of heteronanocrystals
(American Institute of Physics (AIP), 2012)
We report a numerical study of the effect of interface alloying and band alignment on the Auger
recombination processes of core/shell nanocrystals. Smooth interfaces are found to suppress Auger
recombination, the strength ...
Carbon Black CB-EDA Nanoparticles in Macrophages: Changes in the Oxidative Stress Pathway and in Apoptosis Signaling
(MDPI, 2023-06)
The influence of black carbon nanoparticles on J774.A1 murine cells was investigated with the objective of exploring the cytotoxicity of black carbon functionalized with ethylenediamine CB-EDA. The results showed that ...