Listar QFA_Articles por título
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Diamagnetic and paramagnetic shifts in self-assembled InAs lateral quantum dot molecules
American Physical Society (2015)We uncover the underlying physics that explains the energy shifts of discrete states of individual InAs lateral quantum dot molecules (LQDMs) as a function of magnetic fields applied in the Faraday geometry. We observe that ... -
Dielectric Confinement Enables Molecular Coupling in Stacked Colloidal Nanoplatelets
American Chemical Society (2020-04-09)We show theoretically that carriers confined in semiconductor colloidal nanoplatelets (NPLs) sense the presence of neighbor, cofacially stacked NPLs in their energy spectrum. When approaching identical NPLs, the otherwise ... -
Dielectric confinement in quantum dots of arbitrary shape within the local spin density approximation: Diluted regimes in elongated quantum dots
American Institute of Physics (2010)We propose a simplified and computationally feasible model accounting for the dielectric confinement in arbitrarily shaped many-electron quantum dots, within the local spin density approximation. The model yields quite ... -
Dielectric confinement of excitons in type-I and type-II semiconductor nanorods
Institute of Physics (2011-01-12)We theoretically study the effect of the dielectric environment on the exciton ground state of CdSe and CdTe/CdSe/CdTe nanorods. We show that insulating environments enhance the exciton recombination rate and blueshift the ... -
Dielectric control of spin in semiconductor spherical quantum dots
American Institute of Physics (2008)The ground state electronic configuration of semiconductor spherical quantum dots populated with different numbers of excess electrons, for different radii and dielectric constants of the embedding medium is calculated ... -
Dielectric polarization in axially-symmetric nanostructures: A computational approach
Elsevier (2010)A computational scheme to evaluate exactly the effects of the dielectric mismatch in semiconductor nanostructures with axial symmetry is presented. It is based on the numerical computation of the image charges induced by ... -
Digital video electrochemistry (DVEC) applied to the study of Prussian Blue films
Wiley (2022-03-02)Prussian Blue films were electrogenerated on a Pt disc electrode and color changes were studied by digital video electrochemistry together with cyclic voltammetry. Three systems of peaks were detected. Peaks corresponding ... -
Dioxygen Activation by Mononuclear Copper Enzymes: Insights from a Tripodal Ligand Mimicking Their CuM Coordination Sphere
American Chemical Society (2009)A mononuclear cuprous complex is proposed as a novel in silico model for the CuM active site of noncoupled copper monooxygenases. To the best of our knowledge, it is one of the first biomimicking models that allows one to ... -
Direct in situ observation of the electron-driven synthesis of Ag filaments on a-Ag2WO4 crystals
Nature Publishing group (2013)In this letter, we report, for the first time, the real-time in situ nucleation and growth of Ag filaments on α-Ag2WO4 crystals driven by an accelerated electron beam from an electronic microscope under high vacuum. We ... -
Direct injection and determination of the active principles of spices using micellar liquid chromatography
Elsevier (2010)In this work, we develop a simple chromatographic method to identify and determine three active principles: curcumin, capsaicin and piperine. These compounds are present as spices in some plants: turmeric (Curcuma longa), ... -
Direct injection green chromatographic method for simultaneous quantification of amoxicillin and amikacin in maternity hospital wastewater (Sagar, India)
Elsevier (2021-12-21)Amoxicillin (AMO) and amikacin (AMK) are broad-spectrum antibiotics that are most preferably given post-delivery (normal and cesarian) in the maternity hospitals located in Sagar city (Madhya Pradesh), India. Both the ... -
Direct injection of plasma samples and micellar chromatography of procainamide and its metabolite n-acetylprocainamide
Vieweg Verlag (2010)Micellar liquid chromatography was employed for the monitoring of procainamide and its metabolite N-acetylprocainamide using a C18 column. Sodium dodecyl sulphate (SDS) and modifier concentrations were optimised in order ... -
Direct preparation of standard functional interfaces in oxide heterostructures for 2DEG analysis through beam-induced platinum contacts
AIP Publishing (2018-09-24)Two-dimensional electron gas (2DEG) in SrTiO3/LaAlO3 heterostructures has been extensively studied in the last few years; however, little attention has been given to a practical way to contact electrically the low dimensional ... -
Direct quantification of steroid glucuronides in human urine by liquid chromatography-electrospray tandem mass spectrometry
Elsevier (2008)A method based on liquid chromatography-tandem mass spectrometry (LC-MS/MS) for the direct quantification of glucuronides of testosterone (TG), epitestosterone (EPG), androsterone (AG) and etiocholanolone (ETG) has been ... -
Directed emission of CdSe nanoplatelets originating from strongly anisotropic 2D electronic structure
Nature Publishing Group (2017)ntrinsically directional light emitters are potentially important for applications in photonics including lasing and energy-efficient display technology. Here, we propose a new route to overcome intrinsic efficiency ... -
Directed Two-Photon Absorption in CdSe Nanoplatelets Revealed by k‑Space Spectroscopy
American Chemical Society (2017)We show that two-photon absorption (TPA) is highly anisotropic in CdSe nanoplatelets, thus promoting them as a new class of directional two-photon absorbers with large cross sections. Comparing two-dimensional k-space ... -
Disclosing the Biocide Activity of α-Ag2−2xCuxWO4 (0 ≤ x ≤ 0.16) Solid Solutions
MDPI (2022-09-11)n this work, α-Ag2−2xCuxWO4 (0 ≤ x ≤ 0.16) solid solutions with enhanced antibacterial (against methicillin-resistant Staphylococcus aureus) and antifungal (against Candida albicans) activities are reported. A plethora of ... -
Disclosing the Electronic Structure and Optical Properties of Ag4V2O7 crystals: Experimental and Theoretical Insights
Royal Society of Chemistry (2016)This work combines experimental and computational techniques to exploit the best of both methodologies and thus provide a tool for understanding the geometry, cluster coordination, electronic structure, and optical ... -
Disclosing the nature of vacancy defects in α-Ag2WO4
Elsevier (2023-08)Defects at semiconductors with electron acceptor and donor sites govern the electronic and optoelectronic applications due to their unique electronic properties. This work provides deep insight into the nature of defects and ... -
Discovery of a Histidine‐Based Scaffold as an Inhibitor of Gut Microbial Choline Trimethylamine‐Lyase
Wiley (2020-08-22)Anaerobic choline metabolism by human gut microbiota to produce trimethylamine (TMA) has recently evolved as a potential therapeutic target because of its association with chronic kidney disease and increased cardiovascular ...