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Search results for: atomic monolayer
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JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
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JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
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Phonons in Iron: From the Bulk to an Epitaxial Monolayer
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Langmuir monolayers of selected monoacylglycerols
PublicationZbadano właściwości monowarstw uzyskanych na granicy faz powietrze/woda dla głównego składnika emulgatorów acyloglicerolowych, monoacyloglicerolu. Określono wpływ długości łańcucha węglowodorowego (C14:0 - C18:0) badanego związku, temperatury subfazy oraz szybkości kompresji monowarstwy, na właściwości otrzymanego filmu.
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Superconductivity in the calcium-decorated hexagonal boron nitride monolayer
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Determination of occurrence of anodic excursion peaks by dynamic electrochemical impedance spectroscopy, atomic force microscopy and cyclic voltammetry
PublicationStruktura oraz skład warstw anodowych na ołowiu najbardziej zależy od; dodatków stopowych, stężenia kwasu siarkowego oraz od zakresu potencjału. Zjawisko powstawania pików "anodic excursion peaks" od zawsze było w centrum uwagi wielu naukowców. W tej pracy zachowanie się powyższego zjawiska (AEP) zostało zbadane metodami dynamicznej elektrochemicznej spektrokopii impedancyjnej, mikroskopu sił atomowych oraz chronowoltamperometrii....
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ATOMIC ENERGY
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ATOMIC SPECTROSCOPY
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Breakdown of Adiabatic Superconductivity in Ca-Doped h-BN Monolayer
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Magnetically induced dynamical stability of a Fe monolayer on W(110)
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Advances in Atomic and Molecular Spectroscopy
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Functionalization of electrode surfaces with monolayers of azocompounds and gold clusters.
PublicationWłaściwości monowarstw z azokoron na powierzchni złota były badane przy pomocy woltametrii i STM. Powierzchnia przypadająca na cząsteczkę została wyznaczona przy pomocy woltametrii i wynosi 0,65 nm kwadratowych. Wartość ta jest zgodna z wyznaczoną w oparciu o monowarstwę utworzoną na granicy powietrze-woda techniką Langmir-Blodgett. Tworzenie się klasterów złota i innych struktur obserwowano przy pomocy STM w przypadku gdy złota...
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Fifth Workshop on Atomic and Molecular Physics
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Towards a universal embedded-atom method: empirically adjusted and consistent set of atomic densities for all elements of the periodic table
PublicationModel atomu HFS został zmodyfikowany poprzez wyznaczenie indywidualnych parametrów αex dla atomów. Parametry αex wyznaczono w oparciu o energię jonizacji atomów. W oparciu o tak zmodyfikowaną metodę HFS wyznaczono rozkłady gęstości elektronów w atomach.
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BULLETIN OF THE ATOMIC SCIENTISTS
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PHYSICS OF ATOMIC NUCLEI
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Langmuir monolayer study of phospholipid DPPC on the titanium dioxide–chitosan–hyaluronic acid subphases
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Study of the atomic structure and morphology of the Pt3Co nanocatalyst
PublicationThe local structure and chemical disorder of a commercially available Pt3Co nanocatalyst supported on high surface area carbon were investigated. High-quality XAFS spectra were collected at the ELETTRA synchrotron XAFS 11.1 beamline. XAFS spectra analysis have been performed accounting for the reduction of the coordination number and degeneracy of three-body configurations, resulting from transmission electron microscopy (TEM)...
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Stark effect of atomic helium singlet lines
PublicationWe present experimental and theoretical investigations of the He spectral series 2S1−nQ1 (n=3÷9, Q=S,P,D,…,n−1) and 2P1−nQ1 (n=3÷9, Q=S,P,D,…,n−1) in electric fields up to 1635 kV/cm. Apart from the allowed transitions with |ΔL|=1, the transitions with |ΔL|=0,2,3,…-without field strictly forbidden-were observed. Several He patterns become similar to hydrogen patterns, which means they are nearly symmetric and show in higher fields...
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Do positrons measure atomic and molecular diameters?
PublicationWe report on density functional calculations (DFT) of elastic integral scattering cross-sections for positron collisions with argon, krypton, nitrogen and methane. The long-range asymptotic polarization potential is described using higher-order terms going much beyond an induced dipole potential (−α / r 4) while the short-range interaction is modeled by two different forms of electron – positron correlation potential (Boroński-Nieminen...
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RESTful atomic services for distributed digital libraries
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ATOMIC DATA AND NUCLEAR DATA TABLES
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Characteristics of Polypeptide/Phospholipid Monolayers on Water and the Plasma‐Activated Polyetheretherketone Support
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CHARACTERIZATION OF MIXED LANGMUIR MONOLAYERS OF CYCLOSPORINE A WITH THE PHOSPHOLIPID DPPC AT THE CHITOSAN SUBPHASE
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Interactions of amphotericin B derivative of low toxicity with biological membrane components - the Langmuir monolayer approach
PublicationMetodą monowarstw Langmuira zbadano naturę oddziaływań nowej pochodnej antybiotyku przeciwgrzybowego amfoterycyny B o niskiej toksyczności, tj. estru metylowego N-metylo-N-D-fruktopiranozyloamfoterycyny B (MF-AME)z komponentami błon biologicznych: ergosterolem, występującym w komórkach grzybowych i cholesterolem występującym w komórkach zwierzęcych oraz z modelowym fosfolipidem DPPC i na tej podstawie stwierdzono, że zróżnicowanie...
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Application of dynamic impedance spectroscopy to atomic force microscopy
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Application of dynamic impedance spectroscopy to atomic force microscopy
PublicationMikroskopia sił atomowych jest uniwersalną techniką obrazowania powierzchni podczas gdy spektroskopia impedancyjna jest fundamentalną metodą charakteryzowania właściwości elektrycznych materiałów. Z powyższego względu użyteczne jest połączenie powyższych technik dla uzyskania przestrzennego rozkładu wektora impedancji. W pracy autorzy proponują nowe podejście polegające na połączeniu multiczęstotliwościowego pomiaru impedancyjnego...
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Atomic substitution and carbon isotope effect in superconducting MgCNi3
PublicationW pracy analizowany jest wpływ domieszkowania zarówno pozycji niklu, jak i węgla w nadprzewodzącym związku międzymetalicznym MgCNi3. Dodatkowo dyskutowany jest węglowy nadprzewodzący efekt izotopowy.
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Defect-induced conductance oscillations in short atomic chains
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Visualization and characterization of prolamellar bodies with atomic force microscopy
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Ab initioheat capacity and atomic temperature factors of chalcopyrites
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Application of deep eutectic solvents in atomic absorption spectrometry
PublicationAtomic absorption spectrometry (AAS) is a widely applied technique for metal quantification due to its practicality, easy use and low cost. However, to improve the metrological characteristics of AAS, in particular the sensitivity and the detection limit, sample pretreatment is commonly used before the detection step itself. In consideration of the principles of Green Analytical Chemistry, new solvents are being introduced into...
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Lipid membranes exposed to dispersions of phytantriol and monoolein cubosomes: Langmuir monolayer and HeLa cell membrane studies
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Quenching of bright and dark excitons via deep states in the presence of SRH recombination in 2D monolayer materials
PublicationTwo-dimensional (2D) monolayer materials are interesting systems due to an existence of optically non-active dark excitonic states. In this work, we formulate a theoretical model of an excitonic Auger process which can occur together with the trap-assisted recombination in such 2D structures. The interactions of intravalley excitons (bright and spin-dark ones) and intervalley excitons (momentum-dark ones) with deep states located...
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Alkyl Monolayers on Silicon Prepared from 1-Alkenes and Hydrogen-Terminated Silicon
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Properties of the Langmuir and Langmuir–Blodgett monolayers of cholesterol-cyclosporine A on water and polymer support
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Journal of Atomic and Molecular Sciences
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Exploration and Research for Atomic Minerals
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Nuclear Physics and Atomic Energy
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41st European Group for Atomic Systems Conference Book of Abstracts
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Building federation of digital libraries basing on concept of atomic services
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Effect of chitosan on the interactions between phospholipid DOPC, cyclosporine A and lauryl gallate in the Langmuir monolayers
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Surface-Plasmon-Coupled Emission of Rhodamine 110 in a Silica Nanolayer
PublicationThe first observation of strong directional surface-plasmon-coupled emission (SPCE) of Rhodamine 110 in silica nanofilms deposited on silver nanolayers is reported. The preparation of the material is described in detail. The intensity of SPCE exceeds 10 times that of free space fluorescence and total linear light polarization in the SPCE ring is observed. A new experimental setup and an original data collection method is presented....
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Publisher's Note: Magnetically induced dynamical stability of a Fe monolayer on W(110) [Phys. Rev. B76, 205427 (2007)]
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Genetic and Epigenetic Aspects of Atopic Dermatitis
PublicationAtopic dermatitis is a heterogeneous disease, in which the pathogenesis is associated with mutations in genes encoding epidermal structural proteins, barrier enzymes, and their inhibitors; the role of genes regulating innate and adaptive immune responses and environmental factors inducing the disease is also noted. Recent studies point to the key role of epigenetic changes in the development of the disease. Epigenetic modifications...
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Advances in assessing the elemental composition of distilled spirits using atomic spectrometry
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Dynamic Nanoimpedance Characterization of the Atomic Force Microscope Tip-Surface Contact
PublicationNanoimpedance measurements, using the dynamic impedance spectroscopy technique, were carried out during loading and unloading force of a probe on three kinds of materials of different resistivity. These materials were: gold, boron-doped diamond, and AISI 304 stainless steel. Changes of impedance spectra versus applied force were registered and differences in the tip-to-sample contact character on each material were revealed. To...
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Enhancing capabilities of Atomic Force Microscopy by tip motion harmonics analysis
PublicationMotion of a tip used in an atomic force microscope can be described by the Lennard-Jones potential, approximated by the van der Waals force in a long-range interaction. Here we present a general framework of approximation of the tip motion by adding three terms of Taylor series what results in non-zero harmonics in an output signal. We have worked out a measurement system which allows recording of an excitation tip signal and its...
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Determinants of Directionality and Efficiency of the ATP Synthase Fo Motor at Atomic Resolution
PublicationFo subcomplex of ATP synthase is a membrane-embedded rotary motor that converts proton motive force into mechanical energy. Despite a rapid increase in the number of high-resolution structures, the mechanism of tight coupling between proton transport and motion of the rotary c-ring remains elusive. Here, using extensive all-atom free energy simulations, we show how the motor’s directionality naturally arises from the interplay...
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Alkyl Monolayers on Silica Surfaces Prepared Using Neat, Heated Dimethylmonochlorosilanes with Low Vapor Pressures
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