Journal Article10.1107/S0021889809002222
Irena: tool suite for modeling and analysis of small-angle scattering
Jan Ilavsky,Pete R. Jemian +1 more
1.2K
TL;DR: Irena as mentioned in this paper is a tool suite for analysis of both X-ray and neutron small-angle scattering (SAS) data within the commercial Igor Pro application, bringing together a comprehensive suite of tools useful for investigations in materials science, physics, chemistry, polymer science and other fields.
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Abstract: Irena, a tool suite for analysis of both X-ray and neutron small-angle scattering (SAS) data within the commercial Igor Pro application, brings together a comprehensive suite of tools useful for investigations in materials science, physics, chemistry, polymer science and other fields. In addition to Guinier and Porod fits, the suite combines a variety of advanced SAS data evaluation tools for the modeling of size distribution in the dilute limit using maximum entropy and other methods, dilute limit small-angle scattering from multiple non-interacting populations of scatterers, the pair-distance distribution function, a unified fit, the Debye–Bueche model, the reflectivity (X-ray and neutron) using Parratt's formalism, and small-angle diffraction. There are also a number of support tools, such as a data import/export tool supporting a broad sampling of common data formats, a data modification tool, a presentation-quality graphics tool optimized for small-angle scattering data, and a neutron and X-ray scattering contrast calculator. These tools are brought together into one suite with consistent interfaces and functionality. The suite allows robust automated note recording and saving of parameters during export.
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Citations
Time-resolved in situ studies on the formation mechanism of iron oxide nanoparticles using combined fast-XANES and SAXS
Anke Kabelitz,Ana Guilherme,Maike Joester,Maike Joester,Uwe Reinholz,Martin Radtke,Ralf Bienert,Katrin Schulz,Roman Schmack,Ralph Kraehnert,Franziska Emmerling +10 more
TL;DR: In this paper, the formation of Maghemite nanoparticles (γ-Fe2O3) from ferric and ferrous chloride was investigated using triethanolamine as reactant and stabilizing agent.
Connecting the Morphological and Crystal Structural Changes during the Conversion of Lithium Hydroxide Monohydrate to Lithium Carbonate Using Multi-Scale X-ray Scattering Measurements
TL;DR: In this paper, the morphological and crystal structural changes as lithium hydroxide monohydrate is converted to lithium carbonate were studied in a flow-through reactor at PCO2 of 1 atm and at temperatures in the range of 25-500 °C.
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Understanding the adsorption and potential tear film stability properties of recombinant human lubricin and bovine submaxillary mucins in an in vitro tear film model.
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TL;DR: It is shown that both recombinant human lubricin (rh-lubricin) and BSM solutions render surfaces hydrophilic and when the fluid films reach 500 nm or less, the fluids resist evaporation-driven breakup through a volumetric flux across the surface, which is believed to be due to evapation-driven solutocapillary flows.
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Pronounced Size Dependence in Structure and Morphology of Gas-Phase Produced, Partially Oxidized Cobalt Nanoparticles under Catalytic Reaction Conditions.
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TL;DR: The results shed light on the interplay between chemical reactions and the catalyst's structure and provide an approach to tailor the cobalt oxide phase composition required for specific catalytic schemes.
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Enthalpic incompatibility between two steric stabilizer blocks provides control over the vesicle size distribution during polymerization-induced self-assembly in aqueous media
TL;DR: Gonzato et al. as discussed by the authors used two chemically distinct, enthalpically incompatible steric stabilizer blocks to ensure the desired microphase separation across the vesicle membrane, which leads to the formation of well-defined vesicles of around 200 nm diameter (size polydispersity = 13-16%) in aqueous media at 10% w/w solids as judged by transmission electron microscopy, dynamic light scattering and smallangle X-ray scattering.
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