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2018-08-03
11:28
OpenAccess [FZJ-2018-04349] Journal Article

Strategies for removing multiple scattering effects revisited
The multiple scattering problem of small angle neutron scattering (SANS) is revisited using differential equations from which different contributions are derived. The coherent scattering is connected to multiple scattering events and the ideal single scattering cross sections can be related to the apparent scattering cross section. [...]
ddc:530
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2018-05-06
11:33
OpenAccess [FZJ-2018-02694] Journal Article
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Capillary condensation and gelling of microemulsions with clay additives
The capillary condensation in bicontinuous microemulsions takes place when two parallel surfaces are narrowed that result in a completely lamellar microemulsion. We expected that this phase transition is also observable when the amount of hydrophilic surfaces from clay particles is raised, because hydrophilic surfaces induce lamellar ordering locally. [...]
ddc:540
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2018-04-20
11:28
OpenAccess [FZJ-2018-02012] Journal Article
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Densification of Supercritical Carbon Dioxide Accompanied by Droplet Formation When Passing the Widom Line
Thermal density fluctuations of supercritical CO2 were explored using small-angle neutron scattering (SANS), whose amplitude (susceptibility) and correlation length show the expected maximum at the Widom line. At low pressure, the susceptibility is in excellent agreement with the evaluated values on the basis of mass density measurements. [...]
ddc:550
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2018-04-20
11:28
OpenAccess [FZJ-2018-01965] Journal Article
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The high-intensity option of the SANS diffractometer KWS-2 at JCNS – characterization and performance of the new multi-megahertz detection system
A new detection system based on an array of 3He tubes and innovative fast detection electronics has been installed on the high-intensity small-angle neutron scattering (SANS) diffractometer KWS-2 operated by the Jülich Centre for Neutron Science (JCNS) at the Heinz Meier-Leibnitz Zentrum in Garching, Germany. The new detection system is composed of 18 eight-pack modules of 3He tubes that work independently of one another (each unit has its own processor and electronics). [...]
ddc:540
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2018-04-18
11:28
Embargoed OpenAccess [FZJ-2018-02270] Journal Article
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Structure and morphology of model polymer electrolyte membranes based on sulfonated syndiotactic-polystyrene in the δ co-crystalline phase resolved by small-angle neutron scattering
Syndiotactic polystyrene (s-PS) is able to form different kinds of co-crystalline phases with guest molecules of different size, shape and property. Several advanced materials have been produced starting from s-PS co-crystalline films. [...]
ddc:530
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2018-01-11
11:28
Embargoed OpenAccess [FZJ-2017-07353] Journal Article
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Effect of Benzocaine and Propranolol on phospholipid-based bilayers
Cell membranes play a fundamental role in protecting the cell from its surroundings, in addition to host many proteins with fundamental biological tasks. A study of drug/lipid interactions is a necessary and important step to fully clarify the role and action mechanism of active ingredients, as well as to shed light on possible complications caused by drug overdosage. [...]
ddc:540
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2018-01-05
11:28
OpenAccess [FZJ-2018-00064] Journal Article
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Spectrometers for compact neutron sources
We discuss the potential for neutron spectrometers at novel accelerator driven compact neutron sources. Such a High Brilliance Source (HBS) relies on low energy nuclear reactions, which enable cryogenic moderators in very close proximity to the target and neutron optics at comparably short distances from the moderator compared to existing sources [...]
ddc:530
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2017-12-14
11:28
Embargoed OpenAccess [FZJ-2017-08113] Journal Article

Low-Resolution Structure of Detergent-Solubilized Membrane Proteins from Small-Angle Scattering Data
Biophysical journal 113(11), 2373 - 2382 () [10.1016/j.bpj.2017.10.003]
Despite the ever-increasing usage of small-angle scattering as a valuable complementary method in the field of structural biology, applications concerning membrane proteins remain elusive mainly due to experimental challenges and the relative lack of theoretical tools for the treatment of scattering data. This fact adds up to general difficulties encountered also by other established methods (crystallography, NMR) for the study of membrane proteins. [...]
ddc:570
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2017-12-08
11:28
[FZJ-2017-07419] Journal Article
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A self-assembly toolbox for thiophene-based conjugated polyelectrolytes: surfactants, solvent and copolymerisation
Nanoscale 9(44), 17481-17493 () [10.1039/C7NR06169B]
Targeted control of the aggregation, morphology and optical properties of conjugated polymers is critical for the development of high performance optoelectronic devices. Here, self-assembly approaches are used to strategically manipulate the order, conformation and spatial distribution of conjugated polymers in solution and subsequently prepared thin films. [...]
ddc:600
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2017-09-10
11:29
OpenAccess [FZJ-2017-06282] Journal Article
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Nanoscale rheology at solid-complex fluid interfaces
Here we present an approach to measure dynamic membrane properties of phospholipid membranes close to an interface. As an example we show results of the membrane dynamics of a phospholipid membrane multilayer-stack on a solid substrate (silicon). [...]
ddc:000
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