Dr
Antonio Benedetto
(Paul Scherrer Institut)
02/09/2016, 17:50
Poster
We have devised an instrument to measure purely elastic-scattering over a wide range of energy-resolutions as efficiently as possible. Its clientele would be those who wish to study the dynamics of complex biological systems where the inelastic and quasi-elastic signals are too intractable.
Nevertheless, the overall timescales of dynamical transitions can be obtained from inflection(s) in...
Dr
Aleksandra Pajzderska
(A.Mickiewicz University, Faculty of Physics, Poznan, Poland)
02/09/2016, 17:50
Poster
Molecular dynamics of felodipine and lacidipine (derivatives of 1,4-dihydropyridines, calcium channel blockers) were explored by solid-state nuclear magnetic resonance (NMR) and quasi-elastic (QENS) neutron scattering experiments. The experimental results were further combined with DFT and molecular dynamics (MD) simulations, providing a quantitative description of the intramolecular...
Thomas Gutberlet
(Forschungszentrum Jülich)
02/09/2016, 17:50
Poster
An important part of biological plasma cell membranes is the lipid bilayer, functioning as a two-dimensional matrix, separating different cell spaces and serving as an anchorage for e.g. proteins. Incorporation of foreign amphiphilic molecules such as a series of 1-alcohols into the cell membrane changes membrane properties such as bilayer thickness, lipid packing and lateral pressure profile....
Prof.
MPM Marques
(Unidade I&D “Química-Física Molecular”, Univ. Coimbra, Portugal)
02/09/2016, 17:50
Poster
The first neutron scattering study of intact human cells is reported, addressing the subject of solvent-slaving to a drug by directly probing intracellular water to ascertain structural and dynamical variations upon drug exposure. This study is based on the assumption that the behaviour of cytoplasmic water determines both the conformation and function of biomolecules. Inelastic and...
Mr
Dominik Zeller
(Université Grenoble Alpes, Laboratoire Interdisciplinaire de Physique (LiPhy), 38044 Grenoble, France)
02/09/2016, 17:50
Poster
We investigate the dynamics of bio-molecules with the help of incoherent neutron scattering. For elastic data sets the mean square displacement (MSD) as a function of temperature is extracted which may depend strongly on the instrument resolution, Q-range and analysis method employed. This makes it difficult to compare quantitatively data sets from different bio-molecules and experimental data...
Dr
Antonio Urbina
(Technical University of Cartagena, UPCT)
02/09/2016, 17:50
Poster
Conjugated polymers are the main components of a new generation of organic optoelectronic devices, of which organic solar cells are the most promising ones. A summary of quasielastic neutron scattering experiments carried out on P3HT, P3OT and the low band-gap PCPDTBT conjugated polymers during the past few years on different backscattering spectrometers, both on ILL (IN10, IN16 and IN16B) as...
Dr
DAVID DJURADO
(CNRS - CEA Grenoble)
02/09/2016, 17:50
Poster
(CH3NH3)PbI3 hybrid perovskite has recently emerged again on the front of the scene because of its very good emissive properties which permit it to be used in new generation of high performance solar cells exhibiting efficiencies up to 22%. Electronic properties of this material are highly influenced by the local dynamics of cations. We will show how EFWS and IFWS scans recorded on IN16B can...
Dr
Stefan Klotz
(IMPMC, Université P&M Curie)
02/09/2016, 17:50
Poster
Neutron scattering measurements under pressures beyond ca. 2 GPa (20 kbar) allow sample volumes of not more that 100 mm^3. This limits severely their applications on high-resolution instruments, in particular backscattering spectrometers. Here we present some feasibility measurements on liquid glycerol under pressure to ca. 2 GPa, carried out at IN16b at the ILL, at ambient temperature. The...
Dr
Andreas Stadler
(FZ Jülich)
02/09/2016, 17:50
Poster
We used neutron scattering experiments to probe the conformational dynamics of the light, oxygen, voltage (LOV) photoreceptor PpSB1-LOV from Pseudomonas putida in both the dark- and light-state. Global protein diffusion and internal macromolecular dynamics were measured using incoherent neutron time-of-flight and backscattering spectroscopy on the picosecond to nanosecond time scales. Mean...
Dr
Tilo Seydel
(Institut Max von Laue - Paul Langevin)
02/09/2016, 17:50
Poster
New backscattering spectrometers give an unprecedented access to the hierarchical dynamics of proteins in solution [1-3]. The new tools can for instance be used to explore the biologically important impact of macromolecular crowding on the global and internal dynamics of proteins in an aqueous environment. Moreover, the effect of salt-induced charges on the protein diffusion becomes accessible...
Mr
Kristijan Kuhlmann
(Friedrich-Alexander University Erlangen-Nürnberg / Institut Laue-Langevin)
02/09/2016, 17:50
Poster
Since its beginning, the developments in neutron backscattering instrumentation have been primarily focussed on increasing the intensity, while little progress has been made in enhancing the energy resolution. This is restricting investigations like on hyperfine splitting, rotational tunnelling or diffusive processes in solids, e.g. with relevance for battery materials.
During an ongoing...
50.
Quasi-Elastic Neutron Scattering Studies on Solid Electrolytes for solid-state Lithium Batteries
Dr
Didier Blanchard
(DTU)
02/09/2016, 17:50
Poster
The development of better batteries is paramount for the spread of renewable electricity production and utilisation. Limited improvement are expected for lithium-ion battery, because of the use of organic liquid electrolytes. An alternative is to use solid electrolyte instead.
The high temperature (> 383 K) phase of lithium-borohydride, is a fast Li+ conductor. The fast conduction is kept at...
Prof.
Maria Di Bari
(Department. of Physics and Earth Sciences, University of Parma, Parco Area delle Scienze, 7/A, 43124 Parma, Italy)
02/09/2016, 17:50
Main
Poster
Over past years, using elastic and quasielastic neutron scattering, we studied saccharides and saccharide-lipid complexes of interest for biomedical and food science applications.
In food science, we focused on glucose and two of its polymeric forms, amylose and amylopectin: the two main components of starch. In the temperature range 20K - 350K, they show a dynamic transition similar to that...
Prof.
Jean Meinnel
(University of Rennes)
02/09/2016, 17:50
Poster
We have studied the transitions between the ‘rotational levels’ of methyl groups of molecules isolated in cages or channels. First was studied the 1.3.5-trimethylbenzene C9H12 (mesitylene: Mes) trapped in channels of 2.4.6-tris-(bromo-phenoxy-)-1.3.5-triazine C21H12Br3N3O3 (BrPOT). The isolated guest molecules have a symmetry three, their methyl groups are equivalent, they have a tunnelling...
Dr
Simona Pili
(The University of Manchester)
02/09/2016, 17:50
Poster
Polymer electrolyte membrane fuel cells (PEMFCs) represent an appealing option as alternative clean energy systems. Currently, commercially used proton conductors are based upon acidic polymers such as Nafion with conductivity of 10−2 S/cm in presence of water and at temperatures below 80 oC. Rational design of new electrolyte materials to tackle current technical limitations is critical to...
Dr
Colin Carlile
(Uppsala university, Sweden)
02/09/2016, 17:50
Poster
Please access the abstract via the attached file.
Ms
Marcella Berg
(University of Copenhagen)
02/09/2016, 17:50
Poster
Glass ionomer cements (GIC) are an alternative for preventive dentistry. However, these dental cements are complex systems where important motions related to the different states of the hydrogen atoms evolve in a confined porous structure. In this analysis, we studied the water dynamics of two different liquids used to prepare either conventional or resin-modified glass ionomer cement. By...
