cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.5286/isis.e.rb2510374-1
title: The interaction of 5-Hydroxymethyl Furfural (HMF) on a biochar catalyst after the addition of an oxidant and co-catalyst - TOSCA

description: The oxidation of 5-hydroxymethyl furfural (HMF) can lead to the production of poly(ethylene 2,5-furandicarboxylate) (PEF) – a polymer that could replace the petroleum based polyethylene terephthalate (PET). In this context, we have developed a naturally iron-containing biochar (BCR) catalyst from palm oil empty fruit bunch which we found to catalyse the reaction under very mild conditions by use of an organic peroxide and radical mediator co-catalyst. We have recently probed the mechanism of the catalysis to understand the molecular-scale interaction of the HMF with the BCR using INS and results show that the C-H and O-H of bending modes of HMF are observed differently when the radical initiator TEMPO as the co-catalyst was added. We now wish to probe the mechanism of the catalysis when both the co-catalyst and the oxidant are added. For HMF oxidation such mechanistic detail is missing in the literature and for our material such information will allow us to improve and optimise the catalyst further. BCR is very difficult to study by conventional vibrational spectroscopy, as the infrared spectrum is dominated by the residual oxygen functionalities and the Raman by carbon modes. INS enables the complete spectral range to be examined, and parallel proposals for MAPS (for the region above 2500 cm-1) and TOSCA (for the region below 2500 cm-1) will be submitted.
DOI: 10.3535/dve-r47-5nl
title: Plantae

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2590143
title: Probing Low Energy Magnetic Excitations Through INS Measurements

description: The search for novel quantum states drives advancements in condensed matter physics, with rare-earth-based materials emerging as promising candidates due to their strong spin-orbit coupling. In Kramers ions like Yb3+, the crystal electric field (CEF) lifts degeneracies, often yielding a well-isolated spin-1/2 quantum degree of freedom protected by time reversal symmetry, enabling entangled spin states [2]. In this proposal, we propose to investigate a dimer-based compound Yb2Te5O13 as a potential quantum spin liquid (QSL) candidate.
DOI: 10.5286/isis.e.rb2590143-1
title: Probing Low Energy Magnetic Excitations Through INS Measurements

description: The search for novel quantum states drives advancements in condensed matter physics, with rare-earth-based materials emerging as promising candidates due to their strong spin-orbit coupling. In Kramers ions like Yb3+, the crystal electric field (CEF) lifts degeneracies, often yielding a well-isolated spin-1/2 quantum degree of freedom protected by time reversal symmetry, enabling entangled spin states [2]. In this proposal, we propose to investigate a dimer-based compound Yb2Te5O13 as a potential quantum spin liquid (QSL) candidate.
DOI: 10.34816/ifao.archives.232969
title: SAQQARA_nb_1994_06036

description: Référence : nb_1994_06036<br />Site : Saqqara<br />Secteur : Mastaba de Ti<br />Type : photographie<br />
DOI: 10.3535/6e1-tc3-k4f
title: Plantae

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/bt1-3hg-nfn
title: Cardamine enneaphyllos (L.) Crantz

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2590137-1
title: Detailed structure of Co-substituted LaAlO3 perovskites before and after exsolution of nanoparticles for Solid Oxide Cells Fuel-side electrode applications.
DOI: 10.5286/isis.e.rb2590154-1
title: CuCaTa2O7
DOI: 10.5286/isis.e.rb2590155-1
title: Neutron diffraction of a newly synthesized delta - Bi2O3 phase
DOI: 10.5286/isis.e.rb2590158-1
title: Spin wave and diffuse scattering study on 1D spin chain compound Ca3NiMnO6
DOI: 10.15468/dl.ykn76n
title: Occurrence Download

description: A dataset containing 19 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Rudbeckia laciniata L.",
 "Country is Croatia",
 "HasCoordinate is true"
 ]
}

 The dataset includes 19 records from 3 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0109297-250525065834625/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.3535/2gv-r3e-tz6
title: Vicia L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/bhy-91z-hc9
title: Moehringia trinervia (L.) Clairv.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2510238-1
title: Understanding Light-Responsive Release from Liquid Crystal Nanoparticles

description: Stimuli-responsive materials are crucial to advance delivery systems for drugs and catalysts, where a targeted response would grant control in the time and location of delivery. We have recently demonstrated the first example of light-responsive cubic lyotropic liquid crystal (LLC) lipid dispersions, or cubosomes, for on-demand release of entrapped guest molecules. In these systems, photoswitchable azobenzene photosurfactants (AzoPS) are light-responsive additives that impart structural control. Upon irradiation with light, the AzoPS within the cubosomes undergo trans-cis photoisomerisation, which leads to "squeezing" of the cubic lattice and release of entrapped cargo. However, the mechanism for photoisomerisation of azobenzene, especially in condensed, self-assembled states, and the knock-on effect this has on the long-range structural order, are still poorly understood. This knowledge is essential to inform the targeted, bottom-up design of next-generation systems where the light-response is harnessed for optimal control. The aim of this study is to use selective deuteration in small-angle neutron scattering (SANS) to understand where the photosurfactant resides in cubosomes containing AzoPS and the lipid monoolein (MO). We will then use this knowledge to explore how photoisomerisation affects the long-range structural order and release in these systems.
DOI: 10.5286/isis.e.rb2510431
title: Structural characterisation of a new sulfonate functionalised polyamide in high temperature fuel cell applications

description: Polyamides form a class of polymers with exceptional performance for a wide range of functional applications. Their properties can be readily customized by inducing morphological changes through alterations in the synthesis process or conditions, and by incorporating flexible groups into the polymer backbone. Fully aromatic polyamides that have excellent high-temperature stability combined with tunable physical and chemical properties are increasingly used for a range of industrial applications. Here, we will first study the structures of polyamide reverse osmosis membranes generated via liquid-liquid and liquid-aerosol assembly. Secondly, we will then look at the functionalised polyamide membrane as a high-temperature proton exchange membrane The results will allow us to unravel the optimal approach as well as chemical and morphological factors essential to advance the design of high-performance membranes for energy applications.
DOI: 10.5286/isis.e.rb2510431-2
title: Structural characterisation of a new sulfonate functionalised polyamide in high temperature fuel cell applications

description: Polyamides form a class of polymers with exceptional performance for a wide range of functional applications. Their properties can be readily customized by inducing morphological changes through alterations in the synthesis process or conditions, and by incorporating flexible groups into the polymer backbone. Fully aromatic polyamides that have excellent high-temperature stability combined with tunable physical and chemical properties are increasingly used for a range of industrial applications. Here, we will first study the structures of polyamide reverse osmosis membranes generated via liquid-liquid and liquid-aerosol assembly. Secondly, we will then look at the functionalised polyamide membrane as a high-temperature proton exchange membrane The results will allow us to unravel the optimal approach as well as chemical and morphological factors essential to advance the design of high-performance membranes for energy applications.
DOI: 10.3535/syl-332-20h
title: Cardamine amara L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2420276
title: Neutron pair distribution function analysis of oxygen redox model system Li2MoO4

description: Utilisation of reversible oxygen redox activity in lithium-ion cathode materials is the current forefront approach for obtaining high energy density lithium-ion batteries. However, there is considerable debate about the mechanisms of anion redox, and how the structure of a material determines it’s anion redox activities. Here, we propose to study a model anion redox system, Li2MoO4 which contains molybdenum in a Mo(VI) (d0) state suggesting that the significant capacity (80 – 100 mAh/g) originates from pure anion redox. The structure can be altered from phenacite to spinel mechanochemically, offering the opportunity to probe the role of local atomic structure of anion redox activity. We propose to use neutron pair distribution function analysis to study this material as a function of charge, due to the limited crystallinity of the spinel sample and the disordered charge products.
DOI: 10.5286/isis.e.rb2420276-1
title: Neutron pair distribution function analysis of oxygen redox model system Li2MoO4

description: Utilisation of reversible oxygen redox activity in lithium-ion cathode materials is the current forefront approach for obtaining high energy density lithium-ion batteries. However, there is considerable debate about the mechanisms of anion redox, and how the structure of a material determines it’s anion redox activities. Here, we propose to study a model anion redox system, Li2MoO4 which contains molybdenum in a Mo(VI) (d0) state suggesting that the significant capacity (80 – 100 mAh/g) originates from pure anion redox. The structure can be altered from phenacite to spinel mechanochemically, offering the opportunity to probe the role of local atomic structure of anion redox activity. We propose to use neutron pair distribution function analysis to study this material as a function of charge, due to the limited crystallinity of the spinel sample and the disordered charge products.
DOI: 10.5286/isis.e.rb2510238
title: Understanding Light-Responsive Release from Liquid Crystal Nanoparticles

description: Stimuli-responsive materials are crucial to advance delivery systems for drugs and catalysts, where a targeted response would grant control in the time and location of delivery. We have recently demonstrated the first example of light-responsive cubic lyotropic liquid crystal (LLC) lipid dispersions, or cubosomes, for on-demand release of entrapped guest molecules. In these systems, photoswitchable azobenzene photosurfactants (AzoPS) are light-responsive additives that impart structural control. Upon irradiation with light, the AzoPS within the cubosomes undergo trans-cis photoisomerisation, which leads to "squeezing" of the cubic lattice and release of entrapped cargo. However, the mechanism for photoisomerisation of azobenzene, especially in condensed, self-assembled states, and the knock-on effect this has on the long-range structural order, are still poorly understood. This knowledge is essential to inform the targeted, bottom-up design of next-generation systems where the light-response is harnessed for optimal control. The aim of this study is to use selective deuteration in small-angle neutron scattering (SANS) to understand where the photosurfactant resides in cubosomes containing AzoPS and the lipid monoolein (MO). We will then use this knowledge to explore how photoisomerisation affects the long-range structural order and release in these systems.
DOI: 10.34816/ifao.archives.232970
title: SAQQARA_nb_1994_06037

description: Référence : nb_1994_06037<br />Site : Saqqara<br />Secteur : Mastaba de Ti<br />Type : photographie<br />
DOI: 10.3535/36w-zrq-qjn
title: Vicia L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/ad6-75c-g7y
title: Eriophorum latifolium Hoppe

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2510499-1
title: Electrical field control of the in-plane domains in PMN-PT 011

description: In a previous experiment on WISH (RB2310462) we studied the evolution of the crystal structure and domain population in a single crystal of PMN-PT with the electric field applied along the 011 pseudo-cubic direction. In the experiment we explored the HLL plane constituted by the out-of-plane 011 and the in-plane 100 reflections. The application of an electric field significantly alters the ratio of polar and non-polar domains. The system remains rhombohedral without transitioning to the expected orthorhombic phase in the high field regime and the final state consists of two polar domains characterized by the polar direction being out of plane, close to the 011 direction. We ask additional beamtime on WISH to collect the HL-L scattering plane perpendicular to the previously investigated HLL plane. This configuration will allow us to directly probe the evolution of these domains upon application of electric field and correlate this with the macroscopic strain measurements.
DOI: 10.5286/isis.e.rb2590141-1
title: Structural Determination of the Li-Rich Cathode Material Li4FeSbO6
DOI: 10.3535/98v-h3r-8f7
title: Leucanthemum halleri (Vitman) Ducommun

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/fv5-x01-6ar
title: Leucanthemum adustum (W. D. J. Koch) Gremli

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2510376
title: Interaction of EDIII with glycosaminoglycans

description: Dengue fever is a devastating viral disease caused by the Dengue virus, but there is no effective vaccine or
therapeutic available. The third domain of the Dengue envelope protein, EDIII, is mainly responsible for
interaction with host cells. Our lab has identified glycosaminoglycans, namely chondroitin sulfate (CSC), as
key player in this interaction. To increase our understanding of which dynamics play what role in the
interaction between EDIII and CSC-relevant saccharides, we wish to determine the change in MSD
between the different EDIII-saccharide samples and to calculate the change in conformational entropy upon
saccharide binding.
DOI: 10.5286/isis.e.rb2510376-1
title: Interaction of EDIII with glycosaminoglycans

description: Dengue fever is a devastating viral disease caused by the Dengue virus, but there is no effective vaccine or
therapeutic available. The third domain of the Dengue envelope protein, EDIII, is mainly responsible for
interaction with host cells. Our lab has identified glycosaminoglycans, namely chondroitin sulfate (CSC), as
key player in this interaction. To increase our understanding of which dynamics play what role in the
interaction between EDIII and CSC-relevant saccharides, we wish to determine the change in MSD
between the different EDIII-saccharide samples and to calculate the change in conformational entropy upon
saccharide binding.
DOI: 10.5286/isis.e.rb2510499
title: Electrical field control of the in-plane domains in PMN-PT 011

description: In a previous experiment on WISH (RB2310462) we studied the evolution of the crystal structure and domain population in a single crystal of PMN-PT with the electric field applied along the 011 pseudo-cubic direction. In the experiment we explored the HLL plane constituted by the out-of-plane 011 and the in-plane 100 reflections. The application of an electric field significantly alters the ratio of polar and non-polar domains. The system remains rhombohedral without transitioning to the expected orthorhombic phase in the high field regime and the final state consists of two polar domains characterized by the polar direction being out of plane, close to the 011 direction. We ask additional beamtime on WISH to collect the HL-L scattering plane perpendicular to the previously investigated HLL plane. This configuration will allow us to directly probe the evolution of these domains upon application of electric field and correlate this with the macroscopic strain measurements.
DOI: 10.3535/da0-xjk-2ex
title: Cynosurus cristatus L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/g22-q7z-r11
title: Danthonia decumbens (L.) DC.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2220481-4
title: Measurement of the neutron up-scattering effect in the resonances of uranium in UO2 as a function of temperature up to 1700 K
DOI: 10.5286/isis.e.rb2510080-1
title: Investigating detailed magnetic skyrmion dynamics in 2D Kagome magnet Single crystals using the small-angle neutron scattering
DOI: 10.5286/isis.e.rb2590125-1
title: Defining azetidinium orientation and position in the crystal lattice of azetidinium silver bismuth bromide
DOI: 10.3535/4p1-seb-qr7
title: Eriophorum vaginatum L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2510080
title: Investigating detailed magnetic skyrmion dynamics in 2D Kagome magnet Single crystals using the small-angle neutron scattering
DOI: 10.5286/isis.e.rb2510614-1
title: Neutron diffraction determination of the bulk magnetic structure of antiferromagnetic Nd2FeSr2O7 combined with x-ray microscopy

description: The layered perovskite Nd2SrFe2O7 (NSFO) is an antiferromagnetic (AF) material whose magnetic structure was determined using neutron powder diffraction (NPD). Recent x-ray based magnetic imaging has shown a rich network of AF domains and AF domain walls, whose analysis has led to a re-interpretation of the existing NPD results. Magnetic imaging on NSFO cleaved surfaces with X-ray Photoemission Electron Microscope (PEEM) revealed for the first time the intricate structure of the magnetic domain and domain walls (featuring loops and vortex structures) which is not compatible with the proposed interpretation of NPD data, suggesting the existence of a more intricate magnetic order than previously envisaged. The proposed WISH experiment will complement the ongoing NSFO magnetic imaging project with a deeper understanding of the AF magnetic order of the crystal, whose knowledge is key for the interpretation of the AF domain structure.
DOI: 10.5286/isis.e.rb2590162-1
title: Magnetic excitations Ba3PrRuIrO9 and Ba3TbRuIrO9
DOI: 10.3535/hq2-1qb-tk4
title: Carex pilulifera subsp. pilulifera

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/y47-cdc-30k
title: Calamagrostis villosa (Chaix) J.F.Gmel.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2510608
title: Possible spin gap in a clean sample of the quantum spin liquid candidate: herbertsmithite

description: The mineral herbertsmithite (HS), ZnCu3(OD)6Cl2, is a prominent candidate to display a quantum spin liquid (QSL) phase. The Cu(2+) spins (s=1/2) in HS are arranged in a 2D kagome lattice and couple antiferromagnetically. The material has been found to not order down to 50 mK, even though the Curie-Weiss temperature is around -300 K. However, HS is prone to structural disorder between Zn and Cu, disrupting the kagome symmetry and introducing coupling between layers. For this reason, experimental results have been interpreted with caution. We have utilized solid state NMR to quantify the structural disorder that is almost invisible by diffraction methods. The samples with the lowest disorder signal display a clear peak in AC-susceptibility at 200 mK, suggesting either magnetic order or the opening of a spin gap of the order 20 micro-eV. Therefore, we believe it is timely to revisit the question of magnetic order and fluctuations in HS. We aim to study our powder sample using OSIRIS, high-resolution spectroscopy data.
DOI: 10.5286/isis.e.rb2510608-1
title: Possible spin gap in a clean sample of the quantum spin liquid candidate: herbertsmithite

description: The mineral herbertsmithite (HS), ZnCu3(OD)6Cl2, is a prominent candidate to display a quantum spin liquid (QSL) phase. The Cu(2+) spins (s=1/2) in HS are arranged in a 2D kagome lattice and couple antiferromagnetically. The material has been found to not order down to 50 mK, even though the Curie-Weiss temperature is around -300 K. However, HS is prone to structural disorder between Zn and Cu, disrupting the kagome symmetry and introducing coupling between layers. For this reason, experimental results have been interpreted with caution. We have utilized solid state NMR to quantify the structural disorder that is almost invisible by diffraction methods. The samples with the lowest disorder signal display a clear peak in AC-susceptibility at 200 mK, suggesting either magnetic order or the opening of a spin gap of the order 20 micro-eV. Therefore, we believe it is timely to revisit the question of magnetic order and fluctuations in HS. We aim to study our powder sample using OSIRIS, high-resolution spectroscopy data.
DOI: 10.5286/isis.e.rb2510614
title: Neutron diffraction determination of the bulk magnetic structure of antiferromagnetic Nd2FeSr2O7 combined with x-ray microscopy

description: The layered perovskite Nd2SrFe2O7 (NSFO) is an antiferromagnetic (AF) material whose magnetic structure was determined using neutron powder diffraction (NPD). Recent x-ray based magnetic imaging has shown a rich network of AF domains and AF domain walls, whose analysis has led to a re-interpretation of the existing NPD results. Magnetic imaging on NSFO cleaved surfaces with X-ray Photoemission Electron Microscope (PEEM) revealed for the first time the intricate structure of the magnetic domain and domain walls (featuring loops and vortex structures) which is not compatible with the proposed interpretation of NPD data, suggesting the existence of a more intricate magnetic order than previously envisaged. The proposed WISH experiment will complement the ongoing NSFO magnetic imaging project with a deeper understanding of the AF magnetic order of the crystal, whose knowledge is key for the interpretation of the AF domain structure.
DOI: 10.21233/n3mj6d
title: Makar Inlet pollen surface sample dataset

description: Raw data for the Makar Inlet pollen surface sample dataset submitted to the Neotoma Paleoecology Database. Data is available through the landing page in JSON format. The landing page referenced by the DOI also contains links to publications and a map-based viewer for the dataset. The Neotoma Paleoecology Database maintains a homepage at https://www.neotomadb.org.
DOI: 10.3535/nft-61a-bvy
title: Setaria pumila (Poir.) Roem. & Schult.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/vzs-z5t-5fy
title: Arenaria leptoclados (Rchb.) Guss.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2510248-2
title: Structure and magnetism of Sr3Fe4S2O5 obtained by topochemical reduction of Sr3Fe4S2O6

description: This proposal is to fully characterise the structural changes and changes in magnetic ordering following reduction of Fe3+ ions to Fe2+ ions in the reduction product of a new mixed-valent iron oxide chalcogenide compound.