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149 results for “nanostructure”
3D nanostructural characterisation of grain boundaries in atom probe data utilising machine learning techniques
<p>This repository contains supplementary data to the simulations in our paper</p> <p>"3D nanostructural characterisation of grain boundaries in atom probe data utilising machine learning techniques"</p> <p><strong>APTTipCarvingExecutable.tar.gz</strong><br> Contains the production state of the tip synthesis tool source code and compilation</p> <p><strong>TAPSimExecutable.tar.gz</strong><br> Contains the production state of the TAPSim simulation tool source code and compilation</p> <p><strong>scripts.zip</strong><br> Contains tiny shell scripts we used to execute the simulations</p> <p><strong>Two production simulations were performed.</strong><br> Both use the same tip bicrystal geometry but different orientations:<br> <strong>SimID.31054 is the one we discuss in the paper, it has the experimentally measured orientations</strong><br> SimID.31053 is an exemplary simulation with two different crystal orientations</p> <p><strong>For both SimID results five TAR archives exist:</strong><br> TAPSimDetectorHits* contains the main result, the simulated detector hit positionsBiCarving*<br> TAPSimTrajectories* contains all ion trajectories<br> TAPSimInput* contains supplementary results of the TAPSim field evaporation simulation<br> BiCarving* contains the settings and results of the synthesis, the XML file inside the archive details the orientations<br> Meshgen* contains the results of the meshing process prior to the TAPSim simulation</p> <p> </p>
Dataset for publication Harnessing Ti3C2-WS2 Nanostructures as Efficient Energy Scaffoldings for Photocatalytic Hydrogen Generation
<p>The dataset contains all relevant data and figures regarding the manuscript "Harnessing Ti3C2-WS2 Nanostructures as Efficient Energy Scaffoldings for Photocatalytic Hydrogen Generation".</p> <p>All Figures are in tiff format and all relevant data are in csv formats. </p> <p>The data in csv format are labelled as specified in the corresping images (e.g. Figure 1a csv file corresponds to data used to plot graphs from Figure 1a etc.). </p> <p>Axis labeling and units are always specified at the beginning of individual columns. If more than one curve was plotted from the csv file, the conditions can also be found at the beginning of corresponding columns.</p>
Circularly polarized photoluminescence from nanostructured arrays of light emitters
<p>Strategically designed metamaterials can influence the properties of light emitters in several ways, including shaping of the directionality and polarization of luminescence. These properties, however, are limited in systems where the luminophores uniformly coat the metamaterial. Here, we study and design metamaterials comprised of both Au nanobars and nanopatterned light emitters. We systematically investigate the role of spatial averaging, dipole orientation, chirality, near-field effects, and other factors for these multi-material systems. Finally, we discuss multiple design routes to create metasurfaces that can emit photoluminescence of any circular polarization at any arbitrary angle. These systems simultaneously exhibit high photoluminescence intensity and tailored, directional, and polarized photoluminescence.</p>
Hyperfine interactions in open-shell planar sp2-carbon nanostructures
<p>ORCA data files for the publication:</p> <p>S. Sengupta, T. Frederiksen, and G. Giedke<br><em>Hyperfine interactions in open-shell planar sp2-carbon nanostructures</em><br><a href="https://link.aps.org/doi/10.1103/PhysRevB.107.224433" target="_blank" rel="noopener">Phys. Rev. B <strong>107</strong>, 224433 (2023)</a> [arXiv:2303.11422]</p> <p>We investigate hyperfine interaction (HFI) using density-functional theory for several open-shell planar sp2-carbon nanostructures displaying π magnetism. Our prototype structures include both benzenoid ([n]triangulenes and a graphene nanoribbon) as well as nonbenzenoid (indene, fluorene, and indene[2,1-b]fluorene) molecules. Our results obtained with orca indicate that isotropic Fermi contact and anisotropic dipolar terms contribute in comparable strength, rendering the HFI markedly anisotropic. We find that the magnitude of HFI in these molecules can reach more than 100 MHz, thereby opening up the possibility of experimental detection via methods such as electron spin resonance-scanning tunneling microscopy (ESR-STM). Using these results, we obtain empirical models based on π-spin polarizations at carbon sites. These are defined by generic sp2 HFI fit parameters which are derived by matching the computed HFI couplings to π-spin polarizations computed with methods such as Orca, Siesta, or mean-field Hubbard (MFH) models. This approach successfully describes the Fermi contact and dipolar contributions for 13C and 1H nuclei. These fit parameters allow to obtain hyperfine tensors for large systems where existing methodology is not suitable or computationally too expensive. As an example, we show how HFI scales with system size in [n]triangulenes for large n using MFH. We also discuss some implications of HFI for electron-spin decoherence and for coherent nuclear dynamics.</p>
Isothermal self-assembly of multicomponent and evolutive DNA nanostructures
<p>This dataset contains the cadnano files of DNA origamis used in this work as well as all original AFM images used for the data analyses shown in Fig. 1C, Fig. 2A, and Fig. 5.</p>
Supplementary data for "Nanostructure explains the behavior of slippery covalently-attached liquid surfaces"
<p>Slippery covalently-attached liquid surfaces (SCALS) with low contact angle hysteresis (CAH, <5˚) and nanoscale thickness display impressive anti-adhesive properties, similar to lubricant-infused surfaces.<br> Their efficacy is generally attributed to the liquid-like mobility of the constituent tethered chains. However, the precise physico-chemical properties that facilitate this mobility are unknown, hindering rational design. This work quantifies the chain length, grafting density, and microviscosity of a range of polydimethylsiloxane (PDMS) SCALS, elucidating the nanostructure responsible for their properties.</p> <p>Zip files of neutron reflectometry and single-molecule force spectroscopy data are included here.</p>
Dataset: literature review of ethanol chemiresistors based on pure SnO2 nanostructures
<p>This dataset contains a collection of experimental data retrieved from around 160 articles reporting on ethanol chemiresistors based on pure SnO<sub>2</sub>. Pure means that they are neither intentionally doped nor intentionally loaded with any catalyst.</p> <p>The retrieved data are intended to summarize the most common morphological and porosity features of the sensing layers, the characteristics of the measurement setup adopted for gas sensing tests and the figures of merit of the gas sensors, namely response intensity and response/recovery times.</p> <p>The goal is to provide a dataset for benchmarking and/or statistical analysis.</p> <p>The dataset is provided as a tab delimited .txt file (SnO2-ZenodoDataset.txt) accompanied by a readme file (Readme-SnO2-ZenodoDataset.pdf) that explains the definitions of the variables in the dataset and provides full citations of the sources from which the data were obtained.</p>
Carboxymethyl starch as a reducing and capping agent in the hydrothermal synthesis of selenium nanostructures for use with 3D-printed hydrogel carrier
<p>The hydrothermal method is a cost-effective and eco-friendly route for preparing various nanomaterials. It can utilize a capping agent, such as a polysaccharide, to govern and define the nanoparticle morphology. Elemental selenium nanostructures (spheres and rods) were synthesized and stabilized using a tailor-made carboxymethyl starch (CMS, degree of substitution = 0.3) under hydrothermal conditions. CMS is particularly convenient because it acts simultaneously as the capping and reducing agent, as verified by several analytical techniques, while the reaction relies entirely on green solvents. Furthermore, the effect of sodium selenite concentration, reaction time, and temperature on the nanoparticle size, morphology, microstructure, and chemical composition was investigated to identify the ideal synthesis conditions. A pilot experiment demonstrated the feasibility of implementing the synthesized nanoparticles into vat photopolymerization 3D-printed hydrogel carriers based on 2-hydroxyethyl methacrylate (HEMA). When submersed into the water, the subsequent particle release was confirmed by dynamic light scattering (DLS), promising great potential for use in bio-3D printing and other biomedical applications.</p>
Carboxymethyl starch as a reducing and capping agent in the hydrothermal synthesis of selenium nanostructures for use with 3D-printed hydrogel carrier
Open the record for dataset details and reuse information.
Circularly polarized photoluminescence from nanostructured arrays of light emitters
Open the record for dataset details and reuse information.
The fractal nature of the three-phase boundary: A heuristic approach to the degradation of nanostructured solid oxide fuel cell anodes
<p>Data underpinning figures and analysis as well as a greyscale tomographic dataset</p>
Dataset for the paper "Nanostructured Catalyst Layer Allowing Production of Ultralow Loading Electrodes for Polymer Electrolyte Membrane Fuel Cells with Superior Performance" published in ACS Appl. Energy Mater.
<p>The data in this spreadsheet was used to produce the figures in the paper</p><p>Authors:</p><p>Colleen Jackson, Michalis Metaxas, Jack Dawson, Anthony Kucernak</p><p>Title:</p><p>Nanostructured Catalyst Layer Allowing Production of Ultralow Loading Electrodes for Polymer Electrolyte Membrane Fuel Cells with Superior Performance</p><p>Journal:</p><p>ACS Appl. Energy Mater. </p><p>DOI:</p><p>10.1021/acsaem.3c01987</p><p>Please cite the above reference if you wish to use this data</p><p>DOI of data:</p><p>10.5281/zenodo.10256698</p>
Dataset for "Spin wave confinement in hybrid superconductor-ferrimagnet nanostructure"
<p>The dataset consist of the data used to prepare the figures for the manuscript: </p> <p><span>Julia Kharlan</span><span>, Krzysztof Sobucki</span><span>, Krzysztof Szulc</span><span>, Sara Memarzadeh</span><span>, Jarosław W. Kłos</span>. <em>Spin wave confinement in hybrid superconductor-ferrimagnet nanostructure.</em></p> <p>Please read README.txt file to see the description of the data in the files.</p>
Data from "Single-molecule fluorescence multiplexing by multi-parameter spectroscopic detection of nanostructured FRET labels"
<p>Source data for all figures; full table of all nucleic acid sequences used; Supplementary Video 1 showing rotating view of Fig. 4e.</p>
Infrared-Emitting Multimodal Nanostructures for Controlled In Vivo Magnetic Hyperthermia
<p>Dataset of https://zenodo.org/record/5034409#.YcmFH2jMJPZ</p>
Facile synthesis of magnesium-based metal-organic framework with tailored nanostructure for effective VOCs adsorption
<p class="16">A novel Mg(II) metal–organic framework (Mg-MOF) was synthesised based on the ligand of 2,2'-bipyridine-4,4'dicarboxylic acid (Bpdc). Single-crystal X-ray structural analysis confirmed that 3D-nanostructure Mg-MOFs formed a monoclinic system with a channel size of 15.733 Å × 23.736 Å. The N<sub><span>2</span></sub> adsorption isotherm, Fourier-transform infrared spectroscopy, thermogravimetric analysis and high-resolution transmission electron microscopy were performed to characterise the thermal stability and purity of the Mg-MOFs. The adsorption studies on four typical volatile organic compounds (VOCs) emitted during wood drying showed that Mg-MOFs have noteworthy adsorption capacities, especially for benzene and β-pinene with adsorptions of 182.26 mg/g and 144.42 mg/g, respectively. In addition, the adsorption of Mg-MOFs mainly occurred via natural adsorption, specifically, multi-layer physical adsorption, accompanied by chemical forces, which occurred in the pores where the VOCs molecules combined with active sites. As an adsorbent, Mg-MOFs exhibit versatile behaviour for toxic-gas accumulation.</p>
Network-Nanostructured ZIF-8 too Enable Percolation for Enhanced Gas Transport (Data Repository)
<p>Data repository </p>
Data for "Computational Design of Alloy Nanostructures for Optical Sensing of Hydrogen"
<p>This record contains data pertaining to the publication "Computational Design of Alloy Nanostructures for Optical Sensing of Hydrogen".</p>
Non-destructive imaging of atomically-thin nanostructures buried in silicon
<p>Original data in support of our publication, "Non-destructive imaging of atomically-thin nanostructures buried in silicon".</p>
Adhesive Antibacterial Moisturizing Nanostructured Skin Patch for Sustainable Development of Atopic Dermatitis Treatment in Humans [Swelling studies]
<p>Adhesive Antibacterial Moisturizing Nanostructured Skin Patch [Swelling studies]</p>
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.