Kupriyanova Ekaterina Alexandrovna
(The Lebedev Physical Institute of the Russian Academy of Sciences (LPI RAS), Moscow)

«Gravitational states in ultracold quantum systems»
(based on the Ph.D. thesis)

Assoc. Prof. Wojciech Zając
(Institute of Nuclear Physics PAS, Poland)
Lithocholic acid as a molecular crystal, glass-former and a low molecular weight organic gelator
 
Lihocholic acid (LCA), i.e. 3α-hydroxy-5β-cholanic acid, or secondary bile acid, has a steroid framework with two functional end groups: the carboxyl hydroxyl ones. This structure makes it an interesting, if not a model material for the study of aggregation processes, both in bulk and in solution. Bulk properties were studied, among others, by thermal analysis, including a high precision modulated DSC (MDCS), by infrared spectroscopy via moving-window two-dimensional correlation analysis. LCA is a co-called low molecular weight organic gelator to some organic solvents such as DMSO or ethanol. The structure of the gels was studied by small angle neutron scattering as well as by optical and electron microscopy and, complementarily, by MDSC. SEM and TEM images reveal hierarchical, self-similar structure of fibrillar matter. Apparently, this structure is responsible for the gelation fenomena.
 

Pepelyshev Yu.N., Rogov A.D., Sidorkin V.F.

Theoretical optimization of neutron and physical characteristics of proton-driven neutron sources for beam research

O.P.Artykulnyi
(JINR-KNU)

Impact of poly (ethylene glycol) on aqueous micellar solutions by neutron scattering and complementary techniques

Mukhin Konstantin
Vacuum and cryogenic group leader. JINR.

Cold neutron source on mesitylene pellets with a cooling system for IBR-2 reactor