OpenAccess

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2024-02-23
20:04
OpenAccess [FZJ-2024-01706] Journal Article
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Morphology and thermal transitions of self-assembled NIPAM-DMA copolymers in aqueous media depend on copolymer composition profile
Hypothesis: There is a lack of understanding of the interplay between the copolymer composition profile and thermal transition observed in aqueous solutions of N-isopropyl acrylamide (NIPAM) copolymers, as well as the correlation between this transition and the formation and structure of copolymer self-assemblies.Experiments: For this purpose, we investigated the response of five copolymers with the same molar mass and chemical composition, but with different composition profile in aqueous solution against temperature. Using complementary analytical techniques, we probed structural properties at different length scales, from the mo-lecular scale with Nuclear Magnetic Resonance (NMR) to the colloidal scale with Dynamic Light Scattering (DLS) and Small Angle Neutron Scattering (SANS).Findings: NMR and SANS investigations strengthen each other and allow a clear picture of the change of copolymer solubility and related copolymer self-assembly as a function of temperature. [...]

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2024-02-21
20:02

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2024-02-21
20:02
OpenAccess [FZJ-2024-01610] Journal Article
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Advances in Small Angle Neutron Scattering on Polysaccharide Materials
Polymers 16(4), 490 - () [10.3390/polym16040490]
Polysaccharide materials and biomaterials gain the focus of intense research owing to their great versatility in chemical structures and modification possibilities, as well as their biocompatibility, degradability, and sustainability features. This review focuses on the recent advances in the application of SANS on polysaccharide systems covering a broad range of materials such as nanoparticulate assemblies, hydrogels, nanocomposites, and plant-originating nanostructured systems. [...]

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2024-02-21
20:02

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2024-02-21
20:02

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2024-02-21
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2024-02-21
20:02
OpenAccess [FZJ-2024-01341] Journal Article
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Synthesis and Structural Characterization of Layered Ni$^{+1/+2}$ Oxides Obtained by Topotactic Oxygen Release on Nd$_{2−x}$Sr$_{x}$NiO$_{4−δ}$ Single Crystals
Crystals 13(12), 1670 - () [10.3390/cryst13121670] special issue: "High Temperature Superconductor"
Layered nickelate oxides containing Ni$^{1+}$/Ni$^{2+}$ are isoelectronic to Cu$^{2+}$/Cu$^{3+}$ compounds and of present interest with respect to recent findings of superconductivity in a series of different compositions. It is thereby questionable why superconductivity is still rare to find in nickelates, compared to the much larger amount of superconducting cuprates. [...]

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2024-02-05
20:02
OpenAccess [FZJ-2024-00774] Journal Article
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Compaction and clay content control mudrock porosity
Energy 289, 129966 - () [10.1016/j.energy.2023.129966]
Mudrocks, ubiquitous yet poorly understood sedimentary rocks with significant variations in composition and physical properties, form seals for geological carbon dioxide and energy (e.g., hydrogen and methane) storage, repositories for radioactive waste disposal, and reservoirs for natural gas. Understanding the controls on mudrock pore structure is essential for evaluating their porosity. [...]

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2024-02-05
20:02
OpenAccess [FZJ-2024-00457] Journal Article
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Probing spin waves in Co$_{3}$O$_{4}$ nanoparticles for magnonics applications
Nanoscale 16, 1291-1303 () [10.1039/D3NR04424F]
The magnetic properties of spinel nanoparticles can be controlled by synthesizing particles of a specific shape and size. The synthesized nanorods, nanodots and cubic nanoparticles have different crystal planes selectively exposed on the surface. [...]

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2024-02-02
20:02
OpenAccess [FZJ-2024-01196] Talk (non-conference) (After Call)
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BioDiff Beyond 2023
MORIS userworkshop, GarchingGarching, Germany, 26 Apr 2023 - 27 Apr 20232023-04-262023-04-27 [10.34734/FZJ-2024-01196]

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