Visualitzant QFA_Articles per títol
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Valence band mixing of cubic GaN/AlN quantum dots
Institute of Physics (2012)We study the spin purity of the hole ground state in nearly axially symmetric GaN/AlN quantum dots (QDs). To this end, we develop a six-band Burt-Foreman Hamiltonian describing the valence band structure of zinc-blende ... -
Valence bond approach and Verma bases
Springer (2018-02)The unitary group approach (UGA) to the many-fermion problem is based on the Gel’fand–Tsetlin (G–T) representation theory of the unitary or general linear groups. It exploits the group chain U(n)⊃U(n−1)⊃⋯⊃U(2)⊃U(1) and ...
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Validation of a MLC method with fluorescence detection for the determination of quinolones in urine samples by direct injection
Elsevier (2009)A sensitive and robust method was developed and validated for the routine identification and quantification of five quinolones in urine samples directly injected into a micellar liquid chromatographic system without any ... -
Validation of a procedure to quantify oxolinic acid, danofloxacin, ciprofloxacin and enrofloxacin in selected meats by micellar liquid chromatography according to EU Commission Decision 2002/657/EC
Wiley (2017-08)The suitability of an analytical method to determine oxolinic acid, danofloxacin, ciprofloxacin and enrofloxacin in edible tissues, based on micellar liquid chromatogra- phy coupled with fluorescence detection, to be applied ...
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Validation of an analytical methodology to quantify melamine in body fluids using micellar liquid chromatography
Elsevier (2012-01)Measurement of urine and plasma melamine-concentration is helpful in confirming melamine-associated renal diseases. A chromatographic procedure using a C18 column and a micellar mobile phase of sodium dodecyl sulphate (0.2 ...
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Validation of Rapid Microbiological Methods
Sage (2015-06)Classical microbiological methods currently have unacceptably long cycle times. Rapid microbiological methods have been available on the market for decades and have been applied by the clinical and food industries. However, ...
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Vibrational Raman modes of alamosite (PbSiO3): Combining density functional theory calculations and in situ temperature experiments
Wiley (2023-10-09)Raman vibrational modes, temperature wavenumber coefficients, and isobaric-mode Grüneisen parameters of the monoclinic alamosite (PbSiO3) have beenpioneeringly characterized by combining density functional theory ...
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Visible and Infrared Nanocrystal-Based Light Modulator with CMOS Compatible Bias Operation
American Chemical Society (2023-02-15)Nanocrystals are now established light sources, and as synthesis and device integration have gained maturity, new functionalities can now be considered. So far, the emitted light from a nanocrystal population remains mostly ...
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Wastewater-based epidemiology for the assessment of population exposure to chemicals: The need for integration with human biomonitoring for global One Health actions
Elsevier (2023-02-28)WBE has now become a complimentary tool in SARS-CoV-2 surveillance. This was preceded by the established application of WBE to assess the consumption of illicit drugs in communities. It is now timely to build on this and ...
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Wastewater-based epidemiology to assess pan-European pesticide exposure
Elsevier (2017)Human biomonitoring, i.e. the determination of chemicals and/or their metabolites in human specimens, is the most common and potent tool for assessing human exposure to pesticides, but it suffers from limitations such as ...
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Water-Soluble Mo3S4 Clusters Bearing Hydroxypropyl Diphosphine Ligands: Synthesis, Crystal Structure, Aqueous Speciation, and Kinetics of Substitution Reactionss
Elsevier (2012-06)The [Mo3S4Cl3(dhprpe)3]+ (1+) cluster cation has been prepared by reaction between Mo3S4Cl4(PPh3)3 (solvent)2 and the water-soluble 1,2-bis(bis(hydroxypropyl)phosphino)ethane (dhprpe, L) ligand. The crystal structure of ...
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Why Are Some Enzymes Dimers? Flexibility and Catalysis in Thermotoga maritima Dihydrofolate Reductase
American Chemical Society (2019-05-13)Dihydrofolate reductase from Thermotoga maritima (TmDFHFR) is a dimeric thermophilic enzyme that catalyzes the hydride transfer from the cofactor NADPH to dihydrofolate less efficiently than other DHFR enzymes, such as the ...
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Xanthine derivatives quantification in serum by capillary zone electrophoresis
(2015-06-22)A capillary electrophoresis method was developed to quantify caffeine and theophylline, xanthine derivatives with bronchodilator activity. Buffer concentration, pH and applied voltage were optimized using a central composite ...
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Zinc blende versus wurtzite ZnS nanoparticles: control of the phase and optical properties by tetrabutylammonium hydroxide
Royal Society of Chemistry (2014)The influence of tetrabutylammonium hydroxide on the phase composition (cubic zinc blende versus hexagonal wurtzite) of ZnS nanoparticles was studied. The ZnS nanoparticles were prepared by a microwaveassisted solvothermal ...
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Zinc-substituted Ag2CrO4: A material with enhanced photocatalytic and biological activity
Elsevier (2020-05-01)In the past years, new environmentally-friendly photocatalysts have been reported, but the realization of efficient visible-light driven photocatalyst with highly active bactericidal and fungicidal activity is still ...
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ZnWO4 nanocrystals: synthesis, morphology, photoluminescence and photocatalytic properties
Royal Society of Chemistry (2018)The present joint experimental and theoretical work provides in-depth understanding on the morphology and structural, electronic, and optical properties of ZnWO4 nanocrystals. Monoclinic ZnWO4 nanocrystals were prepared ...
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α- and β-AgVO3 polymorphs as photoluminescent materials: An example of temperature-driven synthesis
Elsevier (2018-04-15)Controlling the synthesis of a given polymorph of an inorganic material is a further step in the design of property and function. In this letter, we report for the first time a simple procedure to effectively control the ...
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αsingle bondAg2WO4 under microwave, electron beam and femtosecond laser irradiations: Unveiling the relationship between morphology and photoluminescence emissions
Elsevier (2022-01-29)In this study, the α-Ag2WO4 samples were successfully synthesized combined two methods, co-precipitation and microwave-assisted hydrothermal. Later, two different irradiation processes: electron beam and femtosecond laser ...
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α‑AgVO3 Decorated by Hydroxyapatite (Ca10(PO4)6(OH)2): Tuning Its Photoluminescence Emissions and Bactericidal Activity
American Chemical Society (2019-04)Defect-related luminescent materials have attracted interest because of their excellent optical properties and are considered as a less expensive and nontoxic alternative to commonly used lanthanide-based optical systems. ...
