Listar QFA_Articles por título
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Eco-friendly Synthesis of Silver Nanoparticles and its Application in Hydrogen Photogeneration and Nanoplasmonic Biosensing
Wiley (2023-08-03)Environmentally friendly methods for silver nanoparticles (AgNPs) synthesis without the use of hazardous chemicals have recently drawn attention. In this work, AgNPs have been synthesized by microwave irradiation using ... -
Efecto de la fenformina sobre la corrosión electroquímica del hierro
Instituto Español de Corrosión y Protección (1991)Voltammetry provides quick information about the evolution of the iron electrodes subjected to different chemical treatments. Temporarily the dichromate protects it in acid medium whereas the protective action of the ... -
Effect of buffer nature and concentration on the chromatographic performance of basic compounds in the absence and presence of 1-hexyl-3-methylimidazolium chloride
Elsevier (2019-07-02)In reversed-phase liquid chromatography, the performance for basic compounds is affected by the interaction of the protonated (cationic) species with the anionic free silanols on the alkyl-bonded stationary phases. Using ... -
Effect of coverage and defects on the adsorption of propanethiol on Au(111) surface: a theoretical study
American Chemical Society (2011-12)Periodic density functional calculations have been carried out to investigate both the thiol adsorption on Au(111) surface and the reaction mechanism for the formation of the self-assembled monolayers, taking propanethiol ... -
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 ... -
Effect of polyvinyl alcohol on the shape, photoluminescence and photocatalytic properties of PbMoO4 microcrystals
Elsevier (2014)For this study, lead molybdate (PbMoO4) microcrystals were prepared by the co-precipitation method and processed using a conventional hydrothermal method at 100 °C for 10 min with polyvinyl alcohol (PVA) as the capping ... -
Effect of Pressure-Assisted Heat Treatment on Photoluminescence Emission of α-Bi2O3 Needles
American Chemical Society (2015-10)Materials with high photoluminescence (PL) intensity can potentially be used in optical and electronic devices. Although the PL properties of bismuth(III) oxide with a monoclinic crystal structure (α-Bi2O3) have been ... -
Effect of strain and variable mass on the formation of antibonding hole ground states in InAs quantum dot molecules
American Physical Society (2010-10-04)Using four-band k·p Hamiltonians, we study how biaxial strain and position-dependent effective masses influence hole tunneling in vertically coupled InAs/GaAs quantum dots. Strain reduces the tunneling and hence the critical ... -
Effect of synthesis methods of Co-modified TiO2 in its photocatalytic and bactericidal activity
Springer (2023-10-13)It is well known that a given material's synthesis method can change its catalytic properties. In this work, we demonstrated that Co-modified TiO2 (TiCo) showed photocatalytic activity and bactericidal for water decontamination. ... -
Effect-based evaluation of water quality in a system of indirect reuse of wastewater for drinking water production
Elsevier (2023-05)Indirect potable reuse of wastewater is a practice that is gaining attention, aiming to increase freshwater supplies to meet water scarcity. However, reusing effluent wastewater for drinking water production comes with a ... -
Effective approach for calculations of absolute stability of proteins using focused dielectric constants
John Wiley & Sons, Inc. (2009-11)The ability to predict the absolute stability of proteins based on their corresponding sequence and structure is a problem of great fundamental and practical importance. In this work, we report an extensive, refinement and ... -
Effective elimination of fifteen relevant pharmaceuticals in hospital wastewater from Colombia by combination of a biological system with a sonochemical process
Elsevier (2019)This work presents the treatment of selected emerging concern pharmaceuticals in real hospital wastewater (HWW) from Tumaco-Colombia by combination of a biological system with a sonochemical process. Fifteen compounds, ... -
Effects of chemical substitution on the structural and optical properties of α-Ag 2− 2x Ni x WO 4 (0≤ x≤ 0.08) solid solutions.
Royal Society of Chemistry (2016)In this work, we investigated the effects of chemical substitution on the structural, electronic, and optical properties of α-Ag2−2xNixWO4 (0 ≤ x ≤ 0.08) solid solutions prepared by a facile microwave-assisted hydrothermal ... -
Effects of fish oil replacement and re-feeding on the bioaccumulation of organochlorine compounds in gilthead sea bream (Sparus aurata L.) of market size
Elsevier (2009)Organochlorine pesticide residues and polychlorinated biphenyls were determined in raw materials, fish feeds and fillets from fish exposed through the productive cycle (14 months) to experimental diets with different ... -
Effects of surface stability on the morphological transformation of metals and metal oxides as investigated by first-principles calculations
IOP Publishing (2015)Morphology is a key property of materials. Owing to their precise structure and morphology, crystals and nanocrystals provide excellent model systems for joint experimental and theoretical investigations into surface-related ... -
Efficient (Z)-selective semihydrogenation of alkynes catalyzed by air-stable imidazolyl amino molybdenum cluster sulfides
Royal Society of Chemistry (2023-02-16)Imidazolyl amino cuboidal Mo3(μ3-S)(μ-S)3 clusters have been investigated as catalysts for the semihydrogenation of alkynes. For that purpose, three new air-stable cluster salts [Mo3S4Cl3(ImNH2)3]BF4 ([1]BF4), [Mo3S4Cl3( ... -
Efficient and Selective N‐Methylation of Nitroarenes under Mild Reaction Conditions
Wiley (2017)Herein, we report a straightforward protocol for the preparation of N,N‐dimethylated amines from readily available nitro starting materials using formic acid as a renewable C1 source and silanes as reducing agents. This ... -
Efficient Ni and Fe doping process in ZnO with enhanced photocatalytic activity: A theoretical and experimental investigation
Elsevier Ltd. (2022-08-01)Zn1-xNixO and Zn1-xFexO structures were synthesized by the microwave-assisted hydrothermal method. The best photocatalytic degradation of rhodamine B (RhB) and 4-nitrophenol (4-NP) were achieved by the Zn0.96Ni0.04O and ... -
Electric Field Measurements Reveal the Pivotal Role of Cofactor–Substrate Interaction in Dihydrofolate Reductase Catalysis
American Chemical Society (2020-07-17)The contribution of ligand–ligand electrostatic interaction to transition state formation during enzyme catalysis has remained unexplored, even though electrostatic forces are known to play a major role in protein functions ... -
Electrochemical Sensitivity Improvement by the Cooperation between Pt and Ru for Total Antioxidant Evaluation in Natural Extracts
MDPI (2023-05-23)Herein, a straightforward electrochemical method was used to evaluate the total phenolic antioxidant capacity in natural extracts prepared from pomegranate, hibiscus, and pitaya. In light of this, the well-known electrochemical ...