cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.5286/isis.e.rb2200312-1
title: Magnetic Properties of Quaternary Selenides

description: We will investigate magnetic ordering in Cu2MGeSe4 (M = Mn, Fe, Co), for which magnetic susceptibility data indicate a transition to antiferromagnetic order at temperatures in the range 10–20 K. The Mn- and Co-containing phases exhibit Curie-Weiss behaviour at high temperatures with effective magnetic moments in good agreement with spin-only values. The Fe analogue exhibits more complex behaviour with a second feature observed in the susceptibility below TN and a broad maximum in the high-temperature susceptibility, leading to non-Curie-Weiss behaviour. We seek to determine the magnetic structure for each phase, and its evolution with temperature, by collection of data at base temperature and on warming through TN. We will extend the collections to higher temperature for the Fe analogue to understand the origin of the different behaviour exhibited by this phase.
DOI: 10.5286/isis.e.rb2310648-1
title: Examination of spin-spin correlation of newly synthesized trimer-based triangular antiferromagnets

description: Molecular magnetism has been intensively studied owing to a new opportunity to explore unconventional electronic phases due to the uniquely combined states of a few magnetic ions. The characteristic feature is a molecular orbital state, where electrons are delocalised and shared by several magnetic ions nearby, which a conventional localised electron picture cannot describe. In this proposal, we focus on trimer-based hexagonal perovskites based on face-sharing magnetic octahedra searching for the molecular orbital state by performing neutron diffraction measurements on high-quality polycrystalline samples.
DOI: 10.3535/6j6-leg-kp5
title: Lepraria impossibilis Sipman

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/hbd-n7b-xtb
title: Phyteuma spicatum L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2310297-1
title: Characterisation of lipid nanoparticles under different osmotic stress using SANS and contrast variation

description: Treatments based on protein production and delivering messenger RNA (mRNA) represent a promising approach for therapeutic applications. One of the major challenges is to protect mRNA from enzymatic degradation and deliver it into the target cells. Lipid nanoparticles (LNPs) formed by a cationic ionisable lipid (CIL), DSPC, cholesterol and a pegylated lipid were approved for delivery of small interference RNA. In vitro and in vivo studies draw different conclusions when LNPs are involved and this may be due to the different environments where LNPs are immersed, not only in terms of molecular composition of the media but also due to responsiveness of LNPs to the exerted stress, which derive, for instance, from injection in the body. There is little known on the structural effects of these stress upon intravenous (IV) administration. We propose to use SANS to probe LNP structure under osmotic stress. Partially-deuterated polymer will be used to exert increasing stress on the LNPs but will be contrast matched by a proper mixture of water and heavy water. We plan to measure LNPs with and without the payload in two different mixtures of water and heavy water to selectively match either the shell or the content of the LNPs. We will use two partially-deuterated PEGs that will be matched by the same solvents to exert increasing osmotic stress. The measured LNP form factors will be fit using a core-shell model implemented in SASView and combining the results with computer simulations.
DOI: 10.5286/isis.e.rb2310648
title: Examination of spin-spin correlation of newly synthesized trimer-based triangular antiferromagnets

description: Molecular magnetism has been intensively studied owing to a new opportunity to explore unconventional electronic phases due to the uniquely combined states of a few magnetic ions. The characteristic feature is a molecular orbital state, where electrons are delocalised and shared by several magnetic ions nearby, which a conventional localised electron picture cannot describe. In this proposal, we focus on trimer-based hexagonal perovskites based on face-sharing magnetic octahedra searching for the molecular orbital state by performing neutron diffraction measurements on high-quality polycrystalline samples.
DOI: 10.3535/mxe-mv7-ecr
title: Carex muricata L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/xxs-6xd-lx0
title: Liliaceae

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2310231
title: The crystal and magnetic structural studies of metal halide double perovskites Cs2(Ag:Na)FeCl6 by neutron powder diffraction

description: Magnetic halide perovskites have emerged as potential materials for magnetic functionalized semiconductors. However, stable optoelectronic halide perovskites with long-range magnetic ordering remain scarce. Here we propose to study the magnetic ordering in the emerging stable and non-toxic Cs2(Na:Ag)FeCl6 double perovskites by powder neutron diffraction. Our pilot study by x-ray diffraction, superconducting quantum interference devices, and electron paramagnetic resonance proved a long-range antiferromagnetic order, with strong magnetic frustration. The magnetic frustration factor increases in (Ag:Na) alloy samples. The possible scenario is that Cs2AgFeCl6 and Cs2NaFeCl6 have different magnetic ground states. The alloy between those two would lead to a configuration disorder that further destabilizes the AFM phase. Therefore, determining the magnetic ground state in Cs2(Ag:Na)FeCl6 alloys is vital to answer the origin of the magnetic behavior. In addition, the refined magnetic structure from the experiment will be an experimental basis for the theoretical prediction of magnetic and optoelectronic properties of metal halide double perovskites. The proposed study on Cs2(Ag:Na)FeCl6 would serve as a model system for the emerging field of magnetic halide double perovskites.
DOI: 10.5286/isis.e.rb2310231-1
title: The crystal and magnetic structural studies of metal halide double perovskites Cs2(Ag:Na)FeCl6 by neutron powder diffraction

description: Magnetic halide perovskites have emerged as potential materials for magnetic functionalized semiconductors. However, stable optoelectronic halide perovskites with long-range magnetic ordering remain scarce. Here we propose to study the magnetic ordering in the emerging stable and non-toxic Cs2(Na:Ag)FeCl6 double perovskites by powder neutron diffraction. Our pilot study by x-ray diffraction, superconducting quantum interference devices, and electron paramagnetic resonance proved a long-range antiferromagnetic order, with strong magnetic frustration. The magnetic frustration factor increases in (Ag:Na) alloy samples. The possible scenario is that Cs2AgFeCl6 and Cs2NaFeCl6 have different magnetic ground states. The alloy between those two would lead to a configuration disorder that further destabilizes the AFM phase. Therefore, determining the magnetic ground state in Cs2(Ag:Na)FeCl6 alloys is vital to answer the origin of the magnetic behavior. In addition, the refined magnetic structure from the experiment will be an experimental basis for the theoretical prediction of magnetic and optoelectronic properties of metal halide double perovskites. The proposed study on Cs2(Ag:Na)FeCl6 would serve as a model system for the emerging field of magnetic halide double perovskites.
DOI: 10.5286/isis.e.rb2310297
title: Characterisation of lipid nanoparticles under different osmotic stress using SANS and contrast variation

description: Treatments based on protein production and delivering messenger RNA (mRNA) represent a promising approach for therapeutic applications. One of the major challenges is to protect mRNA from enzymatic degradation and deliver it into the target cells. Lipid nanoparticles (LNPs) formed by a cationic ionisable lipid (CIL), DSPC, cholesterol and a pegylated lipid were approved for delivery of small interference RNA. In vitro and in vivo studies draw different conclusions when LNPs are involved and this may be due to the different environments where LNPs are immersed, not only in terms of molecular composition of the media but also due to responsiveness of LNPs to the exerted stress, which derive, for instance, from injection in the body. There is little known on the structural effects of these stress upon intravenous (IV) administration. We propose to use SANS to probe LNP structure under osmotic stress. Partially-deuterated polymer will be used to exert increasing stress on the LNPs but will be contrast matched by a proper mixture of water and heavy water. We plan to measure LNPs with and without the payload in two different mixtures of water and heavy water to selectively match either the shell or the content of the LNPs. We will use two partially-deuterated PEGs that will be matched by the same solvents to exert increasing osmotic stress. The measured LNP form factors will be fit using a core-shell model implemented in SASView and combining the results with computer simulations.
DOI: 10.3535/av6-6cy-ksb
title: Trichopteryx marungensis Chiov.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2310607
title: Conformational Evaluation of Novel Alternating Polyesters

description: The current drive for more environmentally responsible use of plastic materials is driving the search for polymers that are more readily degradable, but retain the materials performance properties of the non-degradable commodity plastics currently in use. Alternating polyesters, formed by combination of cyclic-anhydrides and epoxides, are proposed as an ideal candidate for chemical recycling, which provides closed loop recycling of plastics and keeps the raw stcok items in circulation. These polymers are starting to be developed towards commercial use, rapid tailoring to required properites is challenging due to the lack of structure-property data available. Processing requirements (solvents/temperatures) are also yet to be optimised. Here we aim to determine the solution properties of a family of these alternating polymers in order to better understand how to target structural optimisation and efficient processing.
DOI: 10.5286/isis.e.rb2310607-1
title: Conformational Evaluation of Novel Alternating Polyesters

description: The current drive for more environmentally responsible use of plastic materials is driving the search for polymers that are more readily degradable, but retain the materials performance properties of the non-degradable commodity plastics currently in use. Alternating polyesters, formed by combination of cyclic-anhydrides and epoxides, are proposed as an ideal candidate for chemical recycling, which provides closed loop recycling of plastics and keeps the raw stcok items in circulation. These polymers are starting to be developed towards commercial use, rapid tailoring to required properites is challenging due to the lack of structure-property data available. Processing requirements (solvents/temperatures) are also yet to be optimised. Here we aim to determine the solution properties of a family of these alternating polymers in order to better understand how to target structural optimisation and efficient processing.
DOI: 10.5286/isis.e.rb2310677
title: Magnetic transitions in the quasi-two-dimensional van der Waals system Ce2Te5

description: Low-dimensional systems often exhibit electronic instabilities leading to charge density waves (CDWs) or superconductivity. Recent studies have focused on the high-temperature CDW materials RTen (R= rare earth, n = 2, 3). Ce2Te5 has a crystal structure intermediate between that of CeTe2 and CeTe3, consisting of alternating single and double Te planes sandwiched between CeTe block layers. Magnetic studies show two clear anomalies at 5.1 and 2.3 K, which correspond to a ferrimagnetic and a possible AFM transition, respectively. Resistivity and heat capacity studies further confirm a third transition at 0.9 K and a fourth at 0.4 K. This cascade of phase transitions in Ce2Te5 has been confirmed through our very recent muon spin rotation measurements, which reveal changes in the internal field across theses transitions. To get direct information on the magnetic structures across these transitions, we propose to carry out a neutron powder diffraction study on the WISH high-flux diffractometer.
DOI: 10.3535/x0p-a88-9sh
title: Euphorbia helioscopia L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/xz3-lrk-qmn
title: Rumex aquaticus L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2220611
title: The dynamics of 2-dimensional methanol in halloysite nanotubes
DOI: 10.5286/isis.e.rb2220611-1
title: The dynamics of 2-dimensional methanol in halloysite nanotubes
DOI: 10.5286/isis.e.rb2310677-1
title: Magnetic transitions in the quasi-two-dimensional van der Waals system Ce2Te5

description: Low-dimensional systems often exhibit electronic instabilities leading to charge density waves (CDWs) or superconductivity. Recent studies have focused on the high-temperature CDW materials RTen (R= rare earth, n = 2, 3). Ce2Te5 has a crystal structure intermediate between that of CeTe2 and CeTe3, consisting of alternating single and double Te planes sandwiched between CeTe block layers. Magnetic studies show two clear anomalies at 5.1 and 2.3 K, which correspond to a ferrimagnetic and a possible AFM transition, respectively. Resistivity and heat capacity studies further confirm a third transition at 0.9 K and a fourth at 0.4 K. This cascade of phase transitions in Ce2Te5 has been confirmed through our very recent muon spin rotation measurements, which reveal changes in the internal field across theses transitions. To get direct information on the magnetic structures across these transitions, we propose to carry out a neutron powder diffraction study on the WISH high-flux diffractometer.
DOI: 10.3535/3r6-be8-znc
title: Liliaceae

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/hyx-yw5-g8l
title: Eriophorum angustifolium Honck.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2310036-1
title: In situ Neutron Diffraction Studies of Adsorbed Gas Molecules in a Rare Ti-MOF

description: Air pollution and global warming are two of the greatest threats to our society and environment. Emerging robust porous materials have shown potential for removal of toxic/greenhouse gases from air. Metal-organic frameworks (MOFs) have demonstrated tuneable pore structures as a pertinent feature in efficient adsorption of toxic gases (e.g., NH3, CH4, CO2, SO2, NO2) emitted by transportations, coal-fired powerplants and many industries. We recently developed a rare Ti(IV)-based MOF that is isostructural to our previously developed MFM-300(MIII) (M = Al, Sc, V, Cr, Fe, In) materials. MFM-300(Ti) has shown an extremely high stability (up to 500 oC) and demonstrated promising adsorption capacity for CH4/CO2/SO2/NO2/NH3. The proposed study aims to carry out the structure determination of the novel MFM-300(Ti) material as a function of gas loading to elucidate the host-guest interactions. This will greatly benefit from the high resolution and in situ gas loading setup at beamline WISH as demonstrated by our recent joint publications.
DOI: 10.5286/isis.e.rb2310291
title: Interaction of peptide-loaded photocatalytic nanoparticles with bacterial membrane components - lipopolysaccharides

description: In the global fight against antimicrobial resistance, photocatalytic TiO2 nanoparticles (TiO2NPs) represent potent non-conventional antibiotics, capable of inducing oxidative degradation of bacterial membranes under UV illumination. However, the poor selectivity between bacteria and human cells severely limit their clinical translation. Recently, we demonstrated that loading TiO2NPs with antimicrobial peptides (AMPs), specifically the AMP LL-37, improves the selectivity between bacteria-like and eukaryotic-mimicking bilayers. Here, we will extend this investigation to other key components of bacterial cell walls, i.e. bacterial lipopolysaccharides (LPS), composing the outer cell membrane of Gram-negative bacteria. We will use Neutron Reflectometry to investigate the structural modification induced by bare TiO2NPs (control sample) and LL-37-TiO2NPs on either "smooth" or "rough" LPS surfaces (mimicking the two main phenotypes of bacterial LPS), under UV illumination. The results will provide mechanistic insights on the oxidative degradation of bacterial LPS by AMPs-loaded TiO2NPs and on how its susceptibility depends on the structure and composition of LPS layers.
DOI: 10.5286/isis.e.rb2310291-1
title: Interaction of peptide-loaded photocatalytic nanoparticles with bacterial membrane components - lipopolysaccharides

description: In the global fight against antimicrobial resistance, photocatalytic TiO2 nanoparticles (TiO2NPs) represent potent non-conventional antibiotics, capable of inducing oxidative degradation of bacterial membranes under UV illumination. However, the poor selectivity between bacteria and human cells severely limit their clinical translation. Recently, we demonstrated that loading TiO2NPs with antimicrobial peptides (AMPs), specifically the AMP LL-37, improves the selectivity between bacteria-like and eukaryotic-mimicking bilayers. Here, we will extend this investigation to other key components of bacterial cell walls, i.e. bacterial lipopolysaccharides (LPS), composing the outer cell membrane of Gram-negative bacteria. We will use Neutron Reflectometry to investigate the structural modification induced by bare TiO2NPs (control sample) and LL-37-TiO2NPs on either "smooth" or "rough" LPS surfaces (mimicking the two main phenotypes of bacterial LPS), under UV illumination. The results will provide mechanistic insights on the oxidative degradation of bacterial LPS by AMPs-loaded TiO2NPs and on how its susceptibility depends on the structure and composition of LPS layers.
DOI: 10.3535/7fc-6fk-xhm
title: Stachys albicaulis Lindl.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/7fn-2vt-lna
title: Calceolaria andina Benth.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2310036
title: In situ Neutron Diffraction Studies of Adsorbed Gas Molecules in a Rare Ti-MOF

description: Air pollution and global warming are two of the greatest threats to our society and environment. Emerging robust porous materials have shown potential for removal of toxic/greenhouse gases from air. Metal-organic frameworks (MOFs) have demonstrated tuneable pore structures as a pertinent feature in efficient adsorption of toxic gases (e.g., NH3, CH4, CO2, SO2, NO2) emitted by transportations, coal-fired powerplants and many industries. We recently developed a rare Ti(IV)-based MOF that is isostructural to our previously developed MFM-300(MIII) (M = Al, Sc, V, Cr, Fe, In) materials. MFM-300(Ti) has shown an extremely high stability (up to 500 oC) and demonstrated promising adsorption capacity for CH4/CO2/SO2/NO2/NH3. The proposed study aims to carry out the structure determination of the novel MFM-300(Ti) material as a function of gas loading to elucidate the host-guest interactions. This will greatly benefit from the high resolution and in situ gas loading setup at beamline WISH as demonstrated by our recent joint publications.
DOI: 10.5286/isis.e.rb2310672-1
title: Operando investigation of SEI formation during Na insertion in hard carbon

description: We are becoming increasingly reliant on energy storage technologies as a vital part of the solution to the energy crisis we currently face. Therefore, the diversification of battery technology is of increasing importance and one such alternative to the dominant Li-ion technology is Na ion batteries (NIBs) as sodium is significantly more abundant and well distributed in the Earth’s crust compared to lithium. The current anode of choice for NIBs is hard carbon (HC) - a class of disordered, porous and non-graphitic carbonaceous material. There are still key questions about the structure, Na-insertion mechanism, and solid-electrolyte interface (SEI) formation in HC that are unanswered. An operando experiment on NIMROD using our custom cell can shed light on these areas simultaneously, as we will focus on SEI formation. We will use contrast matching through deuterated electrolytes to extract chemical information on the SEI formation during cycling. The large Q-range we can access on NIMROD will allow us to identify changes occurring at all the relevant length scales in this system – at the surface of the particles, in the closed pores, as well as in the graphite layers. We can therefore not only observe SEI formation in the pores, but also on the surface, as well as tracking changes in the graphite as Na intercalation occurs. This will contribute to fundamental understanding of this system needed to optimise the electrochemical properties of the hard carbon anode.
DOI: 10.15468/dl.g8fxkt
title: Occurrence Download

description: A dataset containing 43 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Aster novi-belgii L.",
 "Country is Austria",
 "HasCoordinate is true"
 ]
}

 The dataset includes 43 records from 8 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0109225-250525065834625/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.3535/f1y-n9f-96z
title: Bassia scoparia (L.) Beck

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/lyy-n75-w9p
title: Embothrium coccineum J. R. Forst. & G. Forst.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2220546
title: Magnetic domain walls of a non-centrosymmetric Weyl semimetal
DOI: 10.5286/isis.e.rb2220546-1
title: Magnetic domain walls of a non-centrosymmetric Weyl semimetal
DOI: 10.5286/isis.e.rb2269101-2
title: Effects of pH and salt concentration on the fibrous structure formation of plant proteins during high-moisture extrusion and shear
DOI: 10.3535/7d2-mkr-s0p
title: Medicago rigidula (L.) All.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2269101
title: Effects of pH and salt concentration on the fibrous structure formation of plant proteins during high-moisture extrusion and shear

description: Due to health and environmental factors, the food industry is looking for ways to introduce meat replacers made from plant-based proteins to consumer markets. The presence of structural anisotropy in the form of fibre is a prerequisite for meat analogues. There are two most widely used protein structuring methods: shear cell structuring and high-moisture extrusion. Structuring with both technologies results in a product with a meat-like anisotropic fibre structure. However, structure formation ability depends on the protein ingredients used, which leads to plant protein products with varying texture hardness and extent of fibre alignment. In the current study, we will test if it is possible to tune these properties based on the hypothesis that plant proteins have different structure formation abilities under varying pH conditions and salt concentrations.