cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.15151/esrf-es-2227873747
title: Piecing together the earliest complex tetrapod fauna

description: This proposal, a continuation of ES-1383, aims to study unique Devonian tetrapod fossils (359 million years old) from Greenland, collected during an expedition in 2024, by means of propagation phase contrast microtomography on Beamline BM18. Material collected in 2022 from the same locality has been studied in two preceding experiments at BM18 (ES-1383 and ES-1297) with outstanding results, revealing at least 5-6 new tetrapod genera and including the first examples of soft-tissue preservation ever recorded in Devonian tetrapods. The main aim of scanning the new material is to build up a comprehensive picture of the new tetrapods, by mapping overlapping data sets from partial skeletons that allow us to associate components (skulls, limb girdles, limb bones etc.) together correctly, so that we can describe, name and analyse them. The material to be scanned also includes the oldest known tetrapod coprolites (fossil faeces), which will provide the first direct evidence of their diet.
DOI: 10.15151/esrf-es-2227875263
title: Investigating the structure and interactions of liquid-crystalline lipid nanoparticles derived from plant cell walls as novel gene delivery

description: Sustainability is becoming a key focus in pharmaceutical technology, highlighting the need of greener approaches for nanoparticle design. Here, we propose a novel class of non-lamellar lipid nanoparticles (NLLNPs) formulated using natural lipids extracted from plant cell walls, that are byproducts discarded by the cosmetic industry. By replacing synthetic lipids with these sustainable alternatives, we aim to develop eco-friendly nanocarriers for nucleic acid (NA) delivery. The highly curved bilayer structures of such NLLNPs are expected to facilitate endosomal escape, a major bottleneck in gene delivery. We propose Synchrotron static SAXS to resolve the internal structure of NLLNPs with high resolution, while time-resolved SAXS (TR-SAXS) with stopped-flow mixing will capture their interactions with biomimetic endosomal membranes on millisecond timescales. These insights will guide the next-generation NA delivery vectors, enhancing both efficiency and sustainability in pharmaceutics.
DOI: 10.15151/esrf-es-2254421141
title: Operando Multi-Bragg Coherent Diffraction Imaging of Oligocrystal Nanocatalysts during CO Oxidation

description: Dislocations are key defects that strongly impact the catalytic performance of nanoparticles, yet their role under operating conditions remains unclear. We propose to study a single platinum oligocrystal containing well-identified dislocations, prepared by Mass Particle Compression and characterized ex situ. Using the gas panel at ID01 and an incident energy of 13 keV, we will perform in situ and operando multi-Bragg coherent diffraction imaging (m-BCDI) during CO oxidation. This approach will enable the retrieval of three-dimensional displacement, strain, and rotation fields under reaction conditions, thereby revealing how dislocations influence stress relaxation and strain dynamics at the nanoscale. By focusing on one dislocated nanoparticle, we aim to establish a model system that directly links lattice defect evolution to catalytic activity.
DOI: 10.15151/esrf-es-2227862418
title: Short-range order and diffuse scattering in a Al-Co-Cr-Cu-Fe-Ni high entropy alloy: an atomic-resolution holography investigation

description: High-entropy alloy solid solutions are known to be stabilized by their large configurational entropy, contrary to intermetallic alloys. In order to verify the randomness of the atomic occupancy in the crystal structure, several techniques were employed in literature. It is well demonstrated by now that high entropy alloys show lattice distortions and short-range ordering. Short to medium range scale correlated disorder can be probed by diffuse scattering from electron, X-ray and neutrons. Here lies the main focus of this experiment: using atomic resolution holography, we aim to correlate the X-ray and Neutron diffuse scattering, already observed in a Al-Co-Cr-Cu-Fe-Ni alloy single crystal, to nearest neighbors atomic preferences through element-selective 3D real space reconstructions. We have already established the excellent performance of BM02 for measuring holograms of HEA’s in a previous beamtime, and plan to complete our data now.
DOI: 10.15151/esrf-es-2227863967
title: Kinetics of exsolution of metal nanoparticles from perovskite oxides and novel non-reductive exsolution mechanisms

description: The proposed experiments will study the temperature dependence of exsolution of metal nanoparticles from a perovskite support using in situ X-ray diffraction (XRD) and X-ray absorption spectroscopy (XAS). These techniques were successfully employed to track the structural evolution and chemical state of the exsolving metal, respectively, upon exsolution at 800°C in 4% H2 from our optimized model systems based on La0.2Ca0.7Ti0.95Cu0.05O3−δ in our previous experiments at BM31. Time-resolved quantification of exsolution at different temperatures combined with Fick’s laws of diffusion will allow us to extract quantitative information of the diffusion and growth processes, supported by in situ STEM and DFT simulations. The proposed experiments will also elucidate a novel type of non-reductive exsolution process, i.e., exsolution of copper oxides in air/inert atmospheres, as such processes were indicated in our previous experiment.
DOI: 10.15151/esrf-es-2227864813
title: Direct Measurement of Nanostructural Change During In-Situ Indentation Deformation in Lunar Glasses

description: Lunar glasses are formed under extreme extraterrestrial conditions and have undergone geological timescales’ weeathering and aging, resulting in unique atomic structures and exceptional mechanical properties. To date, precise regulation and in-depth understanding of the atomic-scale deformation mechanisms in lunar glasses remain significant challenges, which are crucial for unlocking their potential mechanical applications. This proposal aims to subject Chang’e-5 lunar glassy particles to different degrees of rejuvenation treatment and fabricate clamped cantilevers using focused ion beam (FIB) milling. By applying controlled indentation-based mechanical loading at millinewton-scale stress levels, combined with in-situ cross-sectional nano X-ray diffraction (nano-XRD) analysis, we will systematically track localized strain evolution, densification processes, and shear flow. This will enable a direct correlation between atomic-scale structural features and deformation mechanisms across d
DOI: 10.15468/dl.6a9jv3
title: Occurrence Download

description: A dataset containing 16 species occurrences available in GBIF matching the query:
{
 "and" : [
 "DatasetKey is Vascular plant specimens of National Museum of Nature and Science (TNS)",
 "TaxonKey is Neottia furusei"
 ]
}

 The dataset includes 16 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0052869-250920141307145/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15151/esrf-es-2191562926
title: The European Battery Hub

description: This project is the continuation of the Battery Pilot Hub (MA4929), a pioneer initiative at ESRF designed to achieve large-scale synchrotron-based correlative characterization of battery materials (2021-24). The European Battery Hub is the demonstrator of this new community-driven approach, where we will develop, expand and deploy integrated workflows to resolve scientific challenges towards more sustainable battery technologies. We will focus on Na-ion Batteries and All Solid State Batteries, while ensuring transferability of methods to other systems. The Hub will provide a holistic understanding of reaction and degradation mechanisms by pushing the frontiers of time and space resolution thanks to the exceptional coherence and brilliance of the X-rays at ESRF. Six core beamlines are identified to realize the program (ID31, ID13, BM32, ID16b, ID20, ID26), where novel set-ups, sample environments, interoperable cells, common data handling protocols and pipelines will be developed.
DOI: 10.15151/esrf-es-2227855117
title: Combining XAS and DRIFTS with Modulation Excitation to Elucidate Metal-Oxide Interactions

description: Recent research has highlighted the importance of metal-oxide interactions (MOI) in Ni-based catalysts used for CO2 utilization. Understanding these interactions is crucial, as they significantly influence catalytic performance. To explore MOI, we propose to study Ni catalysts with strategic deposition of ZrO2 and CeO2, using in-situ X-ray absorption spectroscopy (XAS) combined with Diffuse Reflectance Infrared Fourier Transform Spectroscopy (DRIFTS). Modulation-excitation will be central to this study, distinguishing active species from spectators to detail the catalytic dynamics. This approach aims to reveal the fundamental mechanisms of MOI in CO2 methanation, paving the way to designing more effective catalysts.
DOI: 10.15151/esrf-es-2227856182
title: Quantifying strain gradients from femtosecond laser micromachining with highest possible strain resolution using Laue-DIC

description: This proposal aims at measuring the local residual stresses and eventual defect densities as a function of the distance from the milling process using Laue-DIC with increased resolution in order to quantify the impact of femtosecond laser milling parameters on the milled surface. To do so, we will use the LaueMAX station at BM32/IF beamline with a 0.3 µm² spot size to scan in 2D multiple samples. We want to further explore the unique lateral and strain resolution of Laue DIC and extent this study to metal and ceramic base materials to optimize milling parameters such as fluence, speed or the number of repeats to reduce the induced residual strains. Collected data will be analyzed in line with the different parameters used for milling. Complementary cross-sectional FIB/SEM investigations will also be done after the experiment to illustrate the importance of the redeposition layer created during the milling process.
DOI: 10.15468/dl.tbpcnm
title: Occurrence Download

description: A dataset containing 2 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Gnetopsida)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Year is greater than or equal to 1980",
 "OccurrenceStatus is Present",
 {
 "not" : {
 "BasisOfRecord" : [
 "is one of (Fossil, Living Specimen)"
 ]
 }
 },
 "Geometry POLYGON((30 -30,60 -30,60 0,30 0,30 -30))"
 ]
}

 The dataset includes 2 records from 2 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0052870-250920141307145/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15151/esrf-es-2227847163
title: InGeTe3 An Emerging Phase Change Meterial: Amorphous to Crystalline Transition Studied by XAS

description: We aim at unveiling, by X-ray Absorption Spectroscopy (XAS), the local coordination changes upon crystallization in the InGeTe3 2D alloy, an emerging Phase Change Material (PCM) with outstanding properties for in-memory computating applications. Through the study of the local coordination of the material we can unveil the origin of the high transition temperature of InGeTe3 and understand the details of the structural evolution of the amorphous to crystalline phase transition. This knowledge would provide crucial inputs for precise material design for energy-efficient in-memory computing applications and could shed light on the crystallization process of other members of the broad ABC3 compound family.
DOI: 10.15151/esrf-es-2227847710
title: Investigating the relation between proximity induced magnetisation and the anomalous Nernst effect in ordered CoPt alloys

description: Recent studies have shown the importance of proximity-induced- magnetisation (PIM) on spin-transport for spin-orbit torques (SOT) and spin pumping and in ferromagnet (FM)-heavy metal (HM) systems. When the HM-FM interface is separated by a thin, nominally spin-transparent layer, of Au or Cu (0-3 nm), Pt PIM at the HM-FM interface decays rapidly, which is mirrored by a rapid fall in the spin-transport. The impact of PIM on thermal spin-transport effects, however, remains unexplored. One such example is the anomalous Nernst effect (ANE), which Toyama et al. (2024) investigated recently in compositionally graded CoPt thin films. This UK-Japan collaborative proposal requests time to map the magnetisation profile of Pt via XMCD fluorescence and resonant X-ray magnetic reflectivity (XRMR) measurements in these samples as a function of composition and to determine any correlation with the enhancement of ANE to inform our understanding of thermal spin transport and PIM.
DOI: 10.15151/esrf-es-2227848985
title: Functional dynamics of a LOV domain based photoactivated adenylate cyclase revealed by time-resolved small/wide angle X-ray scattering

description: Optogenetics is an emerging field of scientific research where genetically encoded photoreceptor proteins are used in order to perform cellular, intermolecular tasks. Photoreceptor proteins are now used as optogenetical devices to control heterodimerization, homodimerization, gene expression, degradation, nuclear-cytosolic translocation, or the cytoskeleton's function. The most favorable light-activated proteins for the optogenetic toolbox are flavin (FAD or FMN) based photoreceptors like BLUF domain, LOV domain proteins or cryptochromes. We propose to use time-resolved X-ray solution scattering (TR-XSS) experiments to study the functional dynamics of two LOV domain proteins – El222 and mPAC – which can serve as optimal optogenetic devices. The TR-XSS measurements will elucidate the steps of the structural changes after photoexcitation in both proteins, which will helps us to engineer better optogenetic proteins.
DOI: 10.15151/esrf-es-2227852361
title: Mapping the redox conditions of the Solar System using Sm valence state

description: We aim at measuring the valence state of Sm in materials coming from various parts of the Solar System that have recorded various oxygen fugacities. Recently, we have published data obtained at the L2 absorption edge of Yb in materials covering about 10 orders of magnitude in oxygen fugacity, from terrestrial samples to highly reduced enstatite chondrite meteoriteshaving concentration levels down to the order of few ppm on polished section.We also showed that the redox state of Yb was unaltered by the exposure of the meteorites to the Earth’s surface. Now, we want to expand our investigation of the redox state of the Solar System by combining our Yb data to Sm, another element, for which we have indication of reduction, from experiments performed in our laboratory as well as from anomalies observed in natural meteorite samples. The studied material will consist in our meteorite collection, of Lunar samples, and refractory inclusions, representing the oldest objects of the Solar System.
DOI: 10.15151/esrf-es-2227853331
title: Coupled ESRF-European XFEL proposal: Probing electronic structure and density-wave states in nickelates Pr4Ni3O10, La4Ni3O10, and La4Ni3O8

description: We will use RIXS to probe electronic structure changes induced by intertwined spin and charge density wave transitions in the Ruddlesden-Popper nickelates La4Ni3O10 and Pr4Ni3O10 and square-planar nickelate La4Ni3O8. These nickelates are proximate to superconducting transitions, highlighting the complex and poorly understood relationship between density wave and superconducting phases. Our measurements will determine the microscopic electronic changes governing the balance between superconductivity and other instabilities.
DOI: 10.15151/esrf-es-2227857886
title: Bentonite exposed to corroding copper: nature of secondary phases and species formed by Cu diffusion within bentonite

description: Copper coupons embedded within compacted bentonite have corroded for up to 7 years in an underground research laboratory, mimicking the canister/bentonite
interface of waste packages in a geologic repository for nuclear waste. Bentonite adjacent to corroded coupons prepared as crosscuts will be analyzed at ID21. µXRF data will allow determining how far Cu diffused within bentonite, its integration will allow estimating which fraction of corroded Cu diffused within bentonite and µXANES will allow determining the nature and distribution of species at the micrometric scale, and also identifying solid products formed at the coupon/bentonite interface . Analysing 3 contact times will shed light on the temporal evolution of processes that is needed for extrapolation to relevant time scales not achievable in laboratory. Analyzing 2 bentonite compaction will indicate whether it affects Cu diffusion. Such information is important input for repository performance assessment.
DOI: 10.15151/esrf-es-2230316578
title: Revealing microstructural changes in copper power metallizations under thermo-mechanical fatigue using in-situ scanning 3D-XRD

description: In the semiconductor industry, the demand for new technologies requires a deep understanding of physical mechanisms affecting device performance. Short-circuit events in power electronic applications induce thermo-mechanical stresses. If these events occur frequently, they can lead to degradation of metallization layers. To enhance the reliability of future technologies, it's essential to investigate this fatigue behavior. Therefore, test chips have been developed to enable stressing and in-situ characterization of Cu metallization layers, during thermo-mech. cycling. The non-destructive Scanning 3D X-ray Diffraction technique has the potential to monitor microstructural evolution within the metallization layer, throughout the degradation process of a functional device. Combined with detailed Dark Field X-ray Microscopy and Laboratory X-ray Computed Tomography measurements, the study provides multiscale insights under thermo-mechanical fatigue of Cu under high strain rate conditions.
DOI: 10.15151/esrf-es-2252983552
title: Mechanism of stereocomplexation of PLA physical blends from the melt at different residence times in the melt.

description: Sterecomplex PLA is a promising biobased polymer that reduces the carbon footprint and generates biodegradable polymers with physical properties comparable to those of their polyolefin counterparts. However, despite the efforts, there is no consensus yet about the mechanism of crystallisation of high molecular PLA enantiomeric blends in the stereocomplex phase due to the microphase separation that occurs at the melt. Recent DSC experiments suggest that microphase separation can evolve in the melt, as a higher degree of stereocomplex is obtained, minimising the competing alpha phase content. Simultaneously, SAXS-WAXS experiments will be carried out during different thermal protocols (different cooling rates/resident times in the melt) to reveal the crystallisation mechanism in situ, in particular,to monitor the crystallisation mechanism to unmask the competing crystallisation between alpha and stereocomplex phase.
DOI: 10.15151/esrf-es-2227848478
title: Tracking Na metal desolution in solid-state sodium batteries

description: This study aims to investigate the stripping behavior of sodium (Na) anodes in solid-state batteries (SSBs) using Dark-Field X-ray Microscopy (DFXM) at ID03. A novel operando cell with dynamic pressure control will enable real-time tracking of individual Na grains during stripping and re-plating under varying current densities (0.1,1 mA/cm²) and stack pressures (0,10 MPa). By identifying where grains shrink and how pressure influences pore formation, we will provide critical insights into interfacial stability and performance degradation. These findings will inform strategies to optimize Na anodes, mitigate contact loss, and enhance SSB longevity.
DOI: 10.15468/dl.ft7a3c
title: Occurrence Download

description: A dataset containing 10199 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Viola lutea",
 "Country is France",
 "HasCoordinate is true"
 ]
}

 The dataset includes 10199 records from 200 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0052871-250920141307145/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15151/esrf-es-2227831772
title: Understanding Heavy Rare Earth Effects on UO₂ Lattice with XAS : A Structural Approach to Lanthanides Separation in Nuclear Waste

description: The MaLaR European project focuses on improving the selective separation of actinides and lanthanides (Ln) from nuclear waste by exploring their interactions with novel materials. This proposal investigates U0.9Ln0.1O2±δ compounds (Ln = Gd, Dy, Tm, Lu) to understand the structural effects of heavy rare earths elements on the UO2 lattice, particularly charge compensation mechanisms and structural distortions. Samples will be prepared via wet chemistry and sintered under controlled atmospheres which have been evidenced to impact redox speciation and microstructure development. Advanced spectroscopies (HERFD-XANES, EXAFS) will allow us to determine U(IV)/U(V) ratios, check Ln valence states, and evidence the presence of oxygen vacancies. It will also evaluate structural distortions generated by HREE with very small ionic radii, that can be below that of U4+. These findings will further be linked to dissolution kinetics, as a first step to Ln separation process.
DOI: 10.15468/dl.bhgr7r
title: Occurrence Download

description: A dataset containing 55 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Viola lutea",
 "Country is Poland",
 "HasCoordinate is true"
 ]
}

 The dataset includes 55 records from 8 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0052872-250920141307145/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.zue8e5
title: Occurrence Download

description: A dataset containing 3 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Viola lutea",
 "Country is Sweden",
 "HasCoordinate is true"
 ]
}

 The dataset includes 3 records from 2 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0052873-250920141307145/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.6ympnq
title: Occurrence Download

description: A dataset containing 255394 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is India",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Coracias benghalensis",
 "Year 2015-2025"
 ]
}

 The dataset includes 255394 records from 15 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0052837-250920141307145/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.26023/gxww-chjm-s00q
title: VOCALS: NOAA R/V Ron Brown Discrete DMS and DMSP Data and Chlorophyll. Version 1.0

description: During the VAMOS Ocean-Cloud Atmosphere-Land Study (VOCALS) campaign, Discrete DMS, DMSP and Chlorophyll data were collected on board the NOAA R/V Ron Brown from 21 October to 1 December 2008. This dataset contains discrete measurements of seawater dimethyl sulphide (DMS) as well as dissolved dimethyl sulfoniopropionate (DMSP) both within particles (DMSPp) and (DMSPd) and chlorophyll.