cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.5286/isis.e.rb2200029-1
title: Associative behaviour of novel polymeric graft copolymers in aqueous solution

description: Amphiphilic graft copolymers (AGCs) have been studied for their complex and fascinating chemical properties. Potential applications have been identified as wetting agents, foaming agents, drug carriers as well as additives for Enhanced Oil Recovery (EOR).The AGCs of interest are shown in Figure 1: the preliminary Small-angle neutron scattering (Figure 2) has been used to characterize the conformation these graft copolymers adopt in selective solvents (e.g. Water) with possible formation of a core-shell structure. Analyses of tensiometric data (Figure 2) indicate that higher grafting numbers promote a surface tension reduction. We propose to investigate the structure of the AGC in a selective solvent for the grafted chains, as well as the effect of altering the ratio of backbone to graft chains by varying the molecular weight of the chains.
DOI: 10.5286/isis.e.rb2220602
title: Bimetalllic weapons of Iron Age northwestern Iran

description: In consequence of a recent trafficking operation stopped by the Border Force in the UK a large number of metal objects from northwestern Iran became available for study, the majority of which can be dated stylistically to Iron Age I and II (ca. 1250-800 BC). Before they are repatriated, a PhD research will be conducted at Cranfield University, jointly funded by ISIS. It will examine the Bronze Age to Iron Age transition in Iran, focusing on the complex metallurgical techniques. Among the objects are multiple examples of bimetallic weapons, cast in bronze with an iron rod that can be seen through the pommel. We propose to investigate how the swords were assembled using neutron imaging, which will allow us to understand the function of the iron element and whether it continues into the blade. Such weapons are an important link between bronze weapons and their later iron counterparts.
DOI: 10.3535/gr5-4cw-pt2
title: Melilotus indicus (L.) All.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/lbe-fhq-mm8
title: Ononis biflora Desf.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2220602-2
title: Bimetalllic weapons of Iron Age northwestern Iran

description: In consequence of a recent trafficking operation stopped by the Border Force in the UK a large number of metal objects from northwestern Iran became available for study, the majority of which can be dated stylistically to Iron Age I and II (ca. 1250-800 BC). Before they are repatriated, a PhD research will be conducted at Cranfield University, jointly funded by ISIS. It will examine the Bronze Age to Iron Age transition in Iran, focusing on the complex metallurgical techniques. Among the objects are multiple examples of bimetallic weapons, cast in bronze with an iron rod that can be seen through the pommel. We propose to investigate how the swords were assembled using neutron imaging, which will allow us to understand the function of the iron element and whether it continues into the blade. Such weapons are an important link between bronze weapons and their later iron counterparts.
DOI: 10.5286/isis.e.rb2220733-1
title: Controlling the band structure of a Weyl semimetal through nanostructuring.

description: In recent years exotic relativistic quasiparticles have been found to exist in the band structure ofdifferent materials, like Dirac fermions in graphene, or topological insulating states in topologicalinsulators. Recently it was shown for first time that one of such band configurations to have aneffect on a collective property like the magnetism. In NdAlSi, it was reported that the existence ofWeyl nodes was in the root of a magnetic helical ordering. The objective of this experiment is totest the effect of size reduction in such helical order. This experiment will shed light into the effectof electronic confinement in the relativistic quasiparticles.
DOI: 10.3535/vq8-gsc-yyp
title: Scorzonera laciniata L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2220282-1
title: Neutron scattering study on an antiferromagnetic Mn5Si3 thin film: checkerboard-ordered?

description: The spin splitting in energy bands is usually attributed to ferromagnetism or to a relativistic spin-orbit interaction. We recently predicted a third fundamental flavour of spin splitting in collinear antiferromagnets. This novel antiferromagnetic spin splitting was experimentally observed in Mn5Si3 thin films on Si(111) substrates. The substrate appears to stabilise a previously unreported magnetic order of Mn5Si3. The spontaneous anomalous Hall effect is present in these molecular beam epitaxy prepared films, which suggests the presence of spin splitting. The direct observation of the magnetic order in Mn5Si3 films is therefore important to support the current theory and we propose to study a Mn5Si3 epilayer. We aim to reveal the Mn5Si3 thin film magnetic structure and establish Mn5Si3 as a model material for antiferromagnetic spin splitting research.
DOI: 10.5286/isis.e.rb2220430
title: Investigating the adsorption of functional peptides at the oil-water interface using neutron reflectivity

description: In field of food science, research on finding multifunctional ingredients from natural and sustainable sources has been gaining considerable attention. Particularly, investigating naturaland sustainable antioxidants and emulsifiers to control lipid oxidation and obtain stability in food, ultimately causing change in nutrition and sensory profiles, is an important topic. In our on-going research project, we are following a novel approach for identifying functional peptides from various plant, marine, and microbial-based sources using bioinformatics and proteomics tools. Peptides embedded in potato, spinach, seaweed and microbial protein have shown to provide physical and oxidative stability to fish oil emulsions when used as emulsifiers. Moreover, antioxidant peptides were also targeted in these sources, and their activity was validated in emulsions stabilized with Tween 20.
DOI: 10.5286/isis.e.rb2220430-1
title: Investigating the adsorption of functional peptides at the oil-water interface using neutron reflectivity

description: In field of food science, research on finding multifunctional ingredients from natural and sustainable sources has been gaining considerable attention. Particularly, investigating naturaland sustainable antioxidants and emulsifiers to control lipid oxidation and obtain stability in food, ultimately causing change in nutrition and sensory profiles, is an important topic. In our on-going research project, we are following a novel approach for identifying functional peptides from various plant, marine, and microbial-based sources using bioinformatics and proteomics tools. Peptides embedded in potato, spinach, seaweed and microbial protein have shown to provide physical and oxidative stability to fish oil emulsions when used as emulsifiers. Moreover, antioxidant peptides were also targeted in these sources, and their activity was validated in emulsions stabilized with Tween 20.
DOI: 10.5286/isis.e.rb2220733
title: Controlling the band structure of a Weyl semimetal through nanostructuring.

description: In recent years exotic relativistic quasiparticles have been found to exist in the band structure ofdifferent materials, like Dirac fermions in graphene, or topological insulating states in topologicalinsulators. Recently it was shown for first time that one of such band configurations to have aneffect on a collective property like the magnetism. In NdAlSi, it was reported that the existence ofWeyl nodes was in the root of a magnetic helical ordering. The objective of this experiment is totest the effect of size reduction in such helical order. This experiment will shed light into the effectof electronic confinement in the relativistic quasiparticles.
DOI: 10.3535/gwq-a0r-gjg
title: Calamagrostis arundinacea (L.) Roth

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/rqb-t28-g01
title: Crucianella macrostachya Boiss.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2220282
title: Neutron scattering study on an antiferromagnetic Mn5Si3 thin film: checkerboard-ordered?

description: The spin splitting in energy bands is usually attributed to ferromagnetism or to a relativistic spin-orbit interaction. We recently predicted a third fundamental flavour of spin splitting in collinear antiferromagnets. This novel antiferromagnetic spin splitting was experimentally observed in Mn5Si3 thin films on Si(111) substrates. The substrate appears to stabilise a previously unreported magnetic order of Mn5Si3. The spontaneous anomalous Hall effect is present in these molecular beam epitaxy prepared films, which suggests the presence of spin splitting. The direct observation of the magnetic order in Mn5Si3 films is therefore important to support the current theory and we propose to study a Mn5Si3 epilayer. We aim to reveal the Mn5Si3 thin film magnetic structure and establish Mn5Si3 as a model material for antiferromagnetic spin splitting research.
DOI: 10.5286/isis.e.rb2220505-1
title: Molecular exchange kinetics of coacervates consisting of antimicrobial peptides and block copolymers monitored by TR-SANS

description: Antimicrobial peptides (AMPs) are not yet readily suitable for systemic delivery in therapeutic applications, as they have low retainability, are degraded, and are cytotoxic. This project aims to find and define systems to effectively encapsulate AMPs with block copolymers, through complex coacervation, to reduce the side effects of AMP treatment. In complex coacervation, controlled phase separation is induced by interactions between oppositely charged macromolecules. In the proposed experiment we aim to understand the stability of these nanoparticles by studying the molecular exchange kinetics. In this way, by determining the rate of which the molecules move in and out of the assemblies, we can correlate the effective exposure of the peptides with biological activity.
DOI: 10.3535/3bq-e8f-mqh
title: Trifolium argutum Banks & Sol.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2220258
title: Structural characterization of hybrid calciprotein nanoparticles

description: Calciprotein particles (CPPs) represent a key defence mechanism of our organism for the prevention of ectopic calcifications. They consist of amorphous calcium phosphate nanospheres stabilized by the glycoprotein Fetuin-A (Fet-A). The study of the protein component in these hybrid mineral-organic nanostructures is crucial to shed light on Fet-A and other serum proteins action mechanism and to develop strategies to stabilize such CPPs, thus preventing their crystallization and precipitation that can result in vascular calcifications. To this purpose, SANS is particularly well-suited as it allows investigating the structural features of the organic components of the hybrid nanoparticles: the characterization of the protein layer around the inorganic core will contribute to unravel how their stabilizing action takes place, giving useful insights into their important physiological role.
DOI: 10.5286/isis.e.rb2220258-1
title: Structural characterization of hybrid calciprotein nanoparticles

description: Calciprotein particles (CPPs) represent a key defence mechanism of our organism for the prevention of ectopic calcifications. They consist of amorphous calcium phosphate nanospheres stabilized by the glycoprotein Fetuin-A (Fet-A). The study of the protein component in these hybrid mineral-organic nanostructures is crucial to shed light on Fet-A and other serum proteins action mechanism and to develop strategies to stabilize such CPPs, thus preventing their crystallization and precipitation that can result in vascular calcifications. To this purpose, SANS is particularly well-suited as it allows investigating the structural features of the organic components of the hybrid nanoparticles: the characterization of the protein layer around the inorganic core will contribute to unravel how their stabilizing action takes place, giving useful insights into their important physiological role.
DOI: 10.5286/isis.e.rb2220505
title: Molecular exchange kinetics of coacervates consisting of antimicrobial peptides and block copolymers monitored by TR-SANS

description: Antimicrobial peptides (AMPs) are not yet readily suitable for systemic delivery in therapeutic applications, as they have low retainability, are degraded, and are cytotoxic. This project aims to find and define systems to effectively encapsulate AMPs with block copolymers, through complex coacervation, to reduce the side effects of AMP treatment. In complex coacervation, controlled phase separation is induced by interactions between oppositely charged macromolecules. In the proposed experiment we aim to understand the stability of these nanoparticles by studying the molecular exchange kinetics. In this way, by determining the rate of which the molecules move in and out of the assemblies, we can correlate the effective exposure of the peptides with biological activity.
DOI: 10.5286/isis.e.rb2220508-1
title: Characterization of the behavior of hydrophobic domain in hydrogel on hydrophobic and hydrophilic interfaces

description: Biocompatible hydrogels are of central importance for many applications in the field of life science. A central point in all such applications is their adhesion to a solid surface, which is typically achieved by the application of soft pressure. We have developed such a hydrogel that contains cholic acid groups and whose adhesion underwater becomes stronger with increased content of cholic acid. Assumed is here the formation of hydrophobic domains of the cholic acid moieties at the interface that should also depend on the extent of hydrophobicity of the substrate. Neutron reflectometry in D2O shall be done in order to see how the hydrogel structure at the interface changes as a function of applied pressure and the content of cholic acid in the hydrogel. This is essential to understand macroscopic adhesion in terms of mesoscopic structure and thereby rationalize molecular hydrogel design.
DOI: 10.3535/4zy-94s-nmk
title: Trigonella filipes Boiss.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/tfv-swv-prr
title: Trifolium scabrum L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2220508
title: Characterization of the behavior of hydrophobic domain in hydrogel on hydrophobic and hydrophilic interfaces

description: Biocompatible hydrogels are of central importance for many applications in the field of life science. A central point in all such applications is their adhesion to a solid surface, which is typically achieved by the application of soft pressure. We have developed such a hydrogel that contains cholic acid groups and whose adhesion underwater becomes stronger with increased content of cholic acid. Assumed is here the formation of hydrophobic domains of the cholic acid moieties at the interface that should also depend on the extent of hydrophobicity of the substrate. Neutron reflectometry in D2O shall be done in order to see how the hydrogel structure at the interface changes as a function of applied pressure and the content of cholic acid in the hydrogel. This is essential to understand macroscopic adhesion in terms of mesoscopic structure and thereby rationalize molecular hydrogel design.
DOI: 10.5286/isis.e.rb2220620
title: Unravelling the chemical dependence of spin disorder phenomena and interactions in Co-Mn mixed spinel ferrites nanoparticles

description: The main aim of this study is to investigate the chemical homogeneity and surface properties of manganese-cobalt mixed ferrite nanoparticles with different Co/Mn ratios but the same size and shape. We will determine the spatial distribution of the magnetization, identify the presence of magnetic disorder phenomena, and verify the occurrence of interparticle interactions by means of SANSPOL and SANS measurements. Thus, the extracted information will enable us to explain their magnetic behavior and to correlate it with their chemical composition, beyond size, shape, and capping effects. Overall, this study will uncover the connection between the chemical composition in Mn-substituted cobalt ferrites and their magnetic behavior, which is important to control their magnetic performance for their technological (magnetic recording) and biomedical/catalytic application (heat dissipation).
DOI: 10.5286/isis.e.rb2220620-1
title: Unravelling the chemical dependence of spin disorder phenomena and interactions in Co-Mn mixed spinel ferrites nanoparticles

description: The main aim of this study is to investigate the chemical homogeneity and surface properties of manganese-cobalt mixed ferrite nanoparticles with different Co/Mn ratios but the same size and shape. We will determine the spatial distribution of the magnetization, identify the presence of magnetic disorder phenomena, and verify the occurrence of interparticle interactions by means of SANSPOL and SANS measurements. Thus, the extracted information will enable us to explain their magnetic behavior and to correlate it with their chemical composition, beyond size, shape, and capping effects. Overall, this study will uncover the connection between the chemical composition in Mn-substituted cobalt ferrites and their magnetic behavior, which is important to control their magnetic performance for their technological (magnetic recording) and biomedical/catalytic application (heat dissipation).
DOI: 10.3535/7br-34z-q0w
title: Andrachne telephioides L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/ya9-w1b-lla
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.rb2220026
title: Long length-scale organisation in mixtures of hydrogenous and fluorous ionic liquids

description: Supported ionic liquid phases (SILPs) - ionic liquid (IL) films deposited on a high-surface-area support - are a proven strategy for catalysis, but little is known about optimising the IL for this purpose. It is easy to make new ILs and check their properties, but this is wasteful and ineffective, and it is better to tune IL properties by making mixtures, e.g. ten compounds could make 100's of mixtures. We want to understand, and hence be able to predict, how the properties of the mixtures vary with composition and we are interested in mixtures of ILs where one contains a hydrocarbon and chain and the other a fluorocarbon chain. This leads to a structuring of the liquid film which can affect how the catalyst works and we need to get to the point where we can predict how the mixture composition determines the liquid structure. Neutron scattering can answer these questions for us.
DOI: 10.5286/isis.e.rb2220026-1
title: Long length-scale organisation in mixtures of hydrogenous and fluorous ionic liquids

description: Supported ionic liquid phases (SILPs) - ionic liquid (IL) films deposited on a high-surface-area support - are a proven strategy for catalysis, but little is known about optimising the IL for this purpose. It is easy to make new ILs and check their properties, but this is wasteful and ineffective, and it is better to tune IL properties by making mixtures, e.g. ten compounds could make 100's of mixtures. We want to understand, and hence be able to predict, how the properties of the mixtures vary with composition and we are interested in mixtures of ILs where one contains a hydrocarbon and chain and the other a fluorocarbon chain. This leads to a structuring of the liquid film which can affect how the catalyst works and we need to get to the point where we can predict how the mixture composition determines the liquid structure. Neutron scattering can answer these questions for us.
DOI: 10.3535/q7h-c3k-hfv
title: Tripleurospermum maritimum (L.) W. D. J. Koch

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/x7j-6rs-amw
title: Pseudopodospermum hispanicum subsp. hispanicum

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2220225-1
title: Separate incoherent and coherent QENS of protonated and fully deuterated GFP with polarisation analysis.

description: In order to detect quantum effects in the individual dynamics of hydrogens in proteins, we study a fully deuterated protein powder (dGFP) compared to a protonated one (pGFP) both hydrated in D2O, to search for mass effects. We performed QENS at ILL on a TOF spectrometer (IN5) in 2019. However, it is obvious from experimental data that coherent scattering stemming from collective dynamics of all atoms, including the water hydration shell, contaminates the signal arising from incoherent scattering. It was confirmed through static polarisation analysis at 300K on D7 instrument at ILL in 2021, and proved to be highly dependent on the momentum transfer Q and the temperature probed. In order to yield rigorously comparable results, we want to separate both contributions to QENS at sub-meV resolution by performing polarisation analysis on LET instrument for a large Q range at 10, 220 and 310K.
DOI: 10.5286/isis.e.rb2220565
title: Aromatic and aliphatic compounds confined within pores of different sizes

description: The dynamic properties, such as diffusivity expressing the mobility of molecules, suggest that when a liquid is restricted within pores, it behaves in a different way (at the molecular scale) than when it is in a bulk. This indicates that the structural properties of liquids, such as arrangement of molecules, in both cases is different as well. In this study we explore two confining materials that vary by the pore size - mesoporous SBA-15 and microporous ZSM-5, to expand our knowledge on how the pore size influences the structural properties of confined fluids (benzene and cyclohexane, in this case). Understanding these correlations will lead to advancing an accurate nanoscale design of systems comprising of confined fluids, in fields such as catalysis, oil recovery, CO2 capture, fuel cells, membrane separation, and drug release systems.
DOI: 10.5286/isis.e.rb2220565-1
title: Aromatic and aliphatic compounds confined within pores of different sizes

description: The dynamic properties, such as diffusivity expressing the mobility of molecules, suggest that when a liquid is restricted within pores, it behaves in a different way (at the molecular scale) than when it is in a bulk. This indicates that the structural properties of liquids, such as arrangement of molecules, in both cases is different as well. In this study we explore two confining materials that vary by the pore size - mesoporous SBA-15 and microporous ZSM-5, to expand our knowledge on how the pore size influences the structural properties of confined fluids (benzene and cyclohexane, in this case). Understanding these correlations will lead to advancing an accurate nanoscale design of systems comprising of confined fluids, in fields such as catalysis, oil recovery, CO2 capture, fuel cells, membrane separation, and drug release systems.
DOI: 10.3535/rd9-pja-sf6
title: Dianthus nudiflorus Griff.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.