cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.5286/isis.e.rb2220635
title: PNR of strain-mediated parallel to antiparallel magnetic switching of twisted LSMO bilayers on PMN-PT

description: Strain-mediated magnetoelectric (ME) coupling in ferroelectric (FE) and ferromagnetic (FM) heterostructures provides an exciting path towards the development of next-generation memory storage and sensing technologies. This proposal aims to use Polarized Neutron Reflectometry (PNR) to investigate ME coupling in twisted bilayers of La(1-x)Sr(x)MnO3 (LSMO) membranes stacked on giant piezoelectric (1-x)Pb(Mg1/3Nb2/3)O3-(x)PbTiO3 (PMN-xPT). The piezo-driven coupling between the LSMO bilayers and PMN-PT will drive the LSMO magnetic moments to switch from a parallel state to an anti-parallel state, which will be measured using the depth-resolved nature of PNR. This strain-mediated switching would not rely on the use of external factors (such as shape anisotropy) or a multi-step voltage application process and would garner broad interest in the multiferroic research community.
DOI: 10.5286/isis.e.rb2220789
title: Interaction of lyotropic liquid crystalline nanoparticles suitable for drug delivery with model membranes of different fluidity

description: Lipid-based lyotropic liquid crystalline nanoparticle dispersions, such as hexosomes and cubosomes, are biocompatible vehicles for drug delivery due to their ability to encapsulate lipophilic and hydrophilic molecules. However, the molecular mechanism underlying the cellular uptake of these highly ordered LCNPs is still unclear. Understanding the surface interaction of the hexagonal or cubic phase with lipid membranes could provide important hints for fine-tuning drug delivery. Among cell membrane properties, cholesterol-regulated fluidity could play an important role in the passive uptake of LCNPs. Here, we propose to study the interfacial interaction between hexosomes and cubosomes and model membrane of different fluidity by neutron reflectivity.
DOI: 10.5286/isis.e.rb2220789-1
title: Interaction of lyotropic liquid crystalline nanoparticles suitable for drug delivery with model membranes of different fluidity

description: Lipid-based lyotropic liquid crystalline nanoparticle dispersions, such as hexosomes and cubosomes, are biocompatible vehicles for drug delivery due to their ability to encapsulate lipophilic and hydrophilic molecules. However, the molecular mechanism underlying the cellular uptake of these highly ordered LCNPs is still unclear. Understanding the surface interaction of the hexagonal or cubic phase with lipid membranes could provide important hints for fine-tuning drug delivery. Among cell membrane properties, cholesterol-regulated fluidity could play an important role in the passive uptake of LCNPs. Here, we propose to study the interfacial interaction between hexosomes and cubosomes and model membrane of different fluidity by neutron reflectivity.
DOI: 10.21233/n3qn4m
title: Baker Lake (Nichols Site 17) pollen surface sample dataset

description: Raw data for the Baker Lake (Nichols Site 17) 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: 10.3535/8tm-j5m-p89
title: Delphinium L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/g6z-pdb-3d4
title: Ranunculus sprunerianus Boiss.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2220107-1
title: Elucidating the molecular fundamentals of hydrotropic solutions

description: Hydrotropism is the improvement of solubility of compounds by adding a co-solute. This is an important method to improve water solubility for drug compounds in the pharmaceutical sciences. However, the mechanism of hydrotropism is not understood to date, since structural models of the solution based on experimental data are not easily accessible. Here we propose to investigate the solution structure of caffeine - sodium benzoate in water by neutron total scattering. Caffeine solubility can be raised 20fold by the addition of the co-solute, and preliminary NMR data shows a 2:1 caffeine:benzoate binding model with strong binding energy. Data collection of this model system on SANDALS will enable us to generate a structural model of the disordered solution phase using DISSOLVE and elucidate the mechanism of hydrotropism in this system.
DOI: 10.5286/isis.e.rb2220520
title: Influence of counterion solvation in poly(ionic-liquid) solutions and gels

description: Polyelectrolytes (PE) gels are cross-linked polymeric systems which contain ionizable groups. When swollen by a solvent, counterions dissociate and are released into the solvent media. The physical properties of these systems are of great interest because of their technological applications (ranging from membranes for CO2 separation to contact lenses) and because biological tissue such as cartilage is often comprised of PE gels. Until recently, it was assumed that the influence of counterion-solvent interactions on the properties of PE gels could be safely neglected. However, theoretical and simulation studies over the last five years have shown this to be an unjustified assumption, which is confirmed by preliminary results presented here. The aim of this proposal is to systematically study the influence of counterion solvation on the thermodynamic and structural properties of PE gels.
DOI: 10.5286/isis.e.rb2220520-1
title: Influence of counterion solvation in poly(ionic-liquid) solutions and gels

description: Polyelectrolytes (PE) gels are cross-linked polymeric systems which contain ionizable groups. When swollen by a solvent, counterions dissociate and are released into the solvent media. The physical properties of these systems are of great interest because of their technological applications (ranging from membranes for CO2 separation to contact lenses) and because biological tissue such as cartilage is often comprised of PE gels. Until recently, it was assumed that the influence of counterion-solvent interactions on the properties of PE gels could be safely neglected. However, theoretical and simulation studies over the last five years have shown this to be an unjustified assumption, which is confirmed by preliminary results presented here. The aim of this proposal is to systematically study the influence of counterion solvation on the thermodynamic and structural properties of PE gels.
DOI: 10.3535/476-3ty-eal
title: Trifolium physodes Steven ex M.Bieb.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/bqy-ap7-grk
title: Trifolium arvense L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2220107
title: Elucidating the molecular fundamentals of hydrotropic solutions

description: Hydrotropism is the improvement of solubility of compounds by adding a co-solute. This is an important method to improve water solubility for drug compounds in the pharmaceutical sciences. However, the mechanism of hydrotropism is not understood to date, since structural models of the solution based on experimental data are not easily accessible. Here we propose to investigate the solution structure of caffeine - sodium benzoate in water by neutron total scattering. Caffeine solubility can be raised 20fold by the addition of the co-solute, and preliminary NMR data shows a 2:1 caffeine:benzoate binding model with strong binding energy. Data collection of this model system on SANDALS will enable us to generate a structural model of the disordered solution phase using DISSOLVE and elucidate the mechanism of hydrotropism in this system.
DOI: 10.5286/isis.e.rb2220387-2
title: Peptide-mediated lipid transport in lung surfactant models: increasing the complexity while lowering the surface tension

description: Synthetic therapies to treat infant respiratory distress syndrome are urgently needed, as current treatments have stringent storage conditions and are inaccessible in developing countries. We need to understand better how lung surfactant protein B (SP-B) transports lipid between vital lipid reservoirs (when breathing in) to the surface monolayer keeping surface tension close to zero (when breathing out). This proposal builds on a broader project and results from a neutron reflectometry experiment to increase the complexity of the lung surfactant model at more realistic low surface tension values of relevance to lung function. Novelty in the approach is not only the low surface tension but also the selective deuteration of different components of the lipid mixture to highlight the reservoir composition directly with respect to the presence of a peptide analogue of SP-B for the first time.
DOI: 10.3535/1nl-4h2-gqp
title: Orlaya daucoides (L.) Greuter

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/g43-b4h-sdw
title: Dianthus strictus Banks & Sol.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2220057
title: Novel angular anisotropy in polarized SANS

description: The aim of this proposal is to experimentally observe a hitherto unseen angular anisotropy in the polarized SANS cross section of a magnetically strongly inhomogeneous material. Based on the micromagnetic SANS theory, the difference between the spin-up and spin-down SANS cross sections is expected to show a clover-leaf-type angular anisotropy with maxima roughly along the diagonals of the detector. The effect is particularly pronounced in inhomogeneous magnetic materials such as nanoporous ferromagnets or nanocomposites. We aim to carry out the experiment on the two-phase nanocrystalline soft magnetic alloy Nanoperm, a material that finds widespread application as magnetic core in high-frequency power transformers. The present proposal addresses a fundamental question related to the angular anisotropy of the polarized SANS cross section.
DOI: 10.5286/isis.e.rb2220057-1
title: Novel angular anisotropy in polarized SANS

description: The aim of this proposal is to experimentally observe a hitherto unseen angular anisotropy in the polarized SANS cross section of a magnetically strongly inhomogeneous material. Based on the micromagnetic SANS theory, the difference between the spin-up and spin-down SANS cross sections is expected to show a clover-leaf-type angular anisotropy with maxima roughly along the diagonals of the detector. The effect is particularly pronounced in inhomogeneous magnetic materials such as nanoporous ferromagnets or nanocomposites. We aim to carry out the experiment on the two-phase nanocrystalline soft magnetic alloy Nanoperm, a material that finds widespread application as magnetic core in high-frequency power transformers. The present proposal addresses a fundamental question related to the angular anisotropy of the polarized SANS cross section.
DOI: 10.5286/isis.e.rb2220572-1
title: Correlating penetration and conformation of HIV fusion peptide with composition of model mammalian cell membranes

description: In this proposal we aim to perform Neutron measurements on phase-segregated cholesterolcontaining supported lipid bilayers of various compositions involving charged and uncharged lipids to study the interaction with viral fusion peptides at different concentrations. This study shall throw light regarding how different peptide concentrations in aggregated state fuse with heterogeneous membranes having lipid rafts, the extent of peptide penetration, their possible conformation states and the role of charge in this fusion process.
DOI: 10.3535/5qp-q85-q4a
title: Astragalus hamosus L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/jmh-ltq-7xy
title: Trifolium pilulare Boiss.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2220314
title: Fractionalized Spin Excitation in the B-site mixed Ce2ScNbO7 Pyrochlore

description: A quantum spin liquid (QSL) is a state of matter where unpaired electrons’ spins, although entangled, do not show magnetic order even at zero temperature. A continuum of fractionalized excitations from the inelastic neutron scattering (INS) experiments is the hallmark of a QSL at a very low temperature. The ground state of earlier QSL candidates like ZnCu3(OD)6Cl2 and YbMgGaO4 has been complicated by the presence of disorder. Ce2Zr2O7 is a rare example of a QSL candidate that is free of disorder, examined by all sorts of measurements, and the (INS) experiments found a continuum of fractionalized excitations. We made a new compound Ce2ScNbO7, which has the same structure but random distribution of Sc3+ and Nb5+ on the B-site. We propose to perform INS to figure out whether the fractionalized spinon excitations are robust against the B-site disorder in Ce2ScNbO7.
DOI: 10.5286/isis.e.rb2220314-1
title: Fractionalized Spin Excitation in the B-site mixed Ce2ScNbO7 Pyrochlore

description: A quantum spin liquid (QSL) is a state of matter where unpaired electrons’ spins, although entangled, do not show magnetic order even at zero temperature. A continuum of fractionalized excitations from the inelastic neutron scattering (INS) experiments is the hallmark of a QSL at a very low temperature. The ground state of earlier QSL candidates like ZnCu3(OD)6Cl2 and YbMgGaO4 has been complicated by the presence of disorder. Ce2Zr2O7 is a rare example of a QSL candidate that is free of disorder, examined by all sorts of measurements, and the (INS) experiments found a continuum of fractionalized excitations. We made a new compound Ce2ScNbO7, which has the same structure but random distribution of Sc3+ and Nb5+ on the B-site. We propose to perform INS to figure out whether the fractionalized spinon excitations are robust against the B-site disorder in Ce2ScNbO7.
DOI: 10.5286/isis.e.rb2220572
title: Correlating penetration and conformation of HIV fusion peptide with composition of model mammalian cell membranes

description: In this proposal we aim to perform Neutron measurements on phase-segregated cholesterolcontaining supported lipid bilayers of various compositions involving charged and uncharged lipids to study the interaction with viral fusion peptides at different concentrations. This study shall throw light regarding how different peptide concentrations in aggregated state fuse with heterogeneous membranes having lipid rafts, the extent of peptide penetration, their possible conformation states and the role of charge in this fusion process.
DOI: 10.3535/2df-cd6-xdz
title: Poa chaixii Vill.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/9m0-ys2-9xn
title: Bromus rigidus Roth

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2220075
title: Imaging the soil microbiome impact on drought stress-adaptive responses of cowpea roots

description: We recently discovered that soil microbes control key aspects of the drought stress-adaptive response of cowpeas. The implication of this finding is that new microbe-based agritech innovations can be developed for application to soil as a strategy to combat drought. The mechanisms by which soil microbiomes confer robust drought resistance to cowpeas is still unknown. Preliminary data suggests that microbes primarily change the root 3D structure within the soil. Here we propose to combine two imaging techniques (using x-rays and neutrons) to visualize details of soil-root interactions governed by soil microbes. Combined with plant gene expression analysis, the imaging results will provide new insights into the mechanisms used in nature to withstand severe droughts. The results can be exploited to cushion agriculture against climate change, helping to stabilize the global food security.
DOI: 10.5286/isis.e.rb2220075-1
title: Imaging the soil microbiome impact on drought stress-adaptive responses of cowpea roots

description: We recently discovered that soil microbes control key aspects of the drought stress-adaptive response of cowpeas. The implication of this finding is that new microbe-based agritech innovations can be developed for application to soil as a strategy to combat drought. The mechanisms by which soil microbiomes confer robust drought resistance to cowpeas is still unknown. Preliminary data suggests that microbes primarily change the root 3D structure within the soil. Here we propose to combine two imaging techniques (using x-rays and neutrons) to visualize details of soil-root interactions governed by soil microbes. Combined with plant gene expression analysis, the imaging results will provide new insights into the mechanisms used in nature to withstand severe droughts. The results can be exploited to cushion agriculture against climate change, helping to stabilize the global food security.
DOI: 10.5286/isis.e.rb2220491-1
title: Does oxidative damage enhance or hinder antimicrobial peptide insertion into model bacterial lipid monolayers?

description: Continuation Experiment - A number of antimicrobial peptides work, at least in part, by interacting specifically with the lipid layers of microbial cells, the composition of which differs in significant ways from that of mammalian cells. For instance, the antibacterial peptide protegrin is known to interact preferentially with bacterial membranes, which contain large amounts of anionic lipids, such as phosphoglycerol, PG, lipids, rather than mammalian cell membranes which are richer in phosphocholine, PC, lipids. The lipid layers of both microbial and mammalian cells are subject to continuous oxidative attack. In this proposal we wish to complete our recent successful exploration of how the presence of an oxidized lipid within model bacterial lipid monolayers changes the extend and nature of the interaction with protegrin, and thus enable us to write our work up for publication.
DOI: 10.3535/q9k-0b8-7y8
title: Allium stamineum Boiss.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2200359-2
title: The structure of two-dimensional water in halloysite nanotubes
DOI: 10.5286/isis.e.rb2220491
title: Does oxidative damage enhance or hinder antimicrobial peptide insertion into model bacterial lipid monolayers?

description: Continuation Experiment - A number of antimicrobial peptides work, at least in part, by interacting specifically with the lipid layers of microbial cells, the composition of which differs in significant ways from that of mammalian cells. For instance, the antibacterial peptide protegrin is known to interact preferentially with bacterial membranes, which contain large amounts of anionic lipids, such as phosphoglycerol, PG, lipids, rather than mammalian cell membranes which are richer in phosphocholine, PC, lipids. The lipid layers of both microbial and mammalian cells are subject to continuous oxidative attack. In this proposal we wish to complete our recent successful exploration of how the presence of an oxidized lipid within model bacterial lipid monolayers changes the extend and nature of the interaction with protegrin, and thus enable us to write our work up for publication.
DOI: 10.3535/ffb-78b-cc4
title: Ceratocephala falcata (L.) Pers.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/s1t-dg4-zpk
title: Campanula strigosa Banks & Sol.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2200359
title: The structure of two-dimensional water in halloysite nanotubes
DOI: 10.5286/isis.e.rb2220051
title: Changes in the microstructure formation in epoxy+ionic liquid blends with the addition of ionic block-copolymer

description: Research into structural/multifunctional supercapacitors is a rapidly developing topic, since weight and volume savings they provide are essential in a number of applications, including the automotive and aerospace sectors. Multifunctional supercapacitors are an example of the multifunctional devices, which combining structural performance and the ability to store electrical energy. This proposal aims to improve our understanding of the formation of the essential part of these devices, i.e. multifunctional electrolytes. Previous studies carried out by the applicants have shown that the most promising electrolytes have a bicontinuous structure but their synthesis is a complex issue. The proposed SANS experiment will help us understanding the mechanism of the structure of the multifunctional electrolytes formation, ensure the synthesis of the improved electrolytes and device as a whole.
DOI: 10.5286/isis.e.rb2220051-1
title: Changes in the microstructure formation in epoxy+ionic liquid blends with the addition of ionic block-copolymer

description: Research into structural/multifunctional supercapacitors is a rapidly developing topic, since weight and volume savings they provide are essential in a number of applications, including the automotive and aerospace sectors. Multifunctional supercapacitors are an example of the multifunctional devices, which combining structural performance and the ability to store electrical energy. This proposal aims to improve our understanding of the formation of the essential part of these devices, i.e. multifunctional electrolytes. Previous studies carried out by the applicants have shown that the most promising electrolytes have a bicontinuous structure but their synthesis is a complex issue. The proposed SANS experiment will help us understanding the mechanism of the structure of the multifunctional electrolytes formation, ensure the synthesis of the improved electrolytes and device as a whole.
DOI: 10.3535/e23-zv0-3ky
title: Lathyrus pseudocicera Pamp.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/srb-mdg-kbq
title: Sclerochloa dura (L.) P.Beauv.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2310336
title: Neutron diffraction investigation of magnetic correlations of the S= 1 antiferromagnetic trimer chain compound LiNi1.5P2O7
DOI: 10.5286/isis.e.rb2310336-1
title: Neutron diffraction investigation of magnetic correlations of the S= 1 antiferromagnetic trimer chain compound LiNi1.5P2O7
DOI: 10.3535/cnz-rel-c6b
title: Campanula phrygia Jaub. & Spach

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5281/zenodo.15845262
title: 25 여름학기 데이터셋
DOI: 10.5281/zenodo.15845263
title: 25 여름학기 데이터셋
DOI: 10.5286/isis.e.rb2210022
title: Probing topologically enhanced interface magnetism

description: Topologically nontrivial materials are a material class which has emerged over the past decade+ as a critical area of research due to promise for ultra-low power computing or fault-tolerant quantum devices. As the classes of accessible topological materials have expanded, transitions between topological states may enable a wide range of new devices. In particular, the Dirac semimetal ZrTe5 is near a transition to both weak and strong topological insulating states, which may enable tuning in and out of macroscopic quantum transport conditions. Here, we propose to study the introduction of magnetic order in to ZrTe5 by the magnetic insulator EuS, as the time-reversal symmetry breaking induced by magnetic order at the surface is crucial to realizing the quantum anomalous Hall state in this material.