Neutron scattering investigations of dynamics of solutions in porous hybrid silica xerogels

Nyomtatóbarát változatNyomtatóbarát változat
PhD típus: 
Fizikai Tudományok Doktori Iskola
Év: 
2020/2021
Témavezető: 
Név: 
Markó Márton
Email cím: 
marko.marton@ek-cer.hu
Kutatóintézet/Tanszék: 
Energiatudományi Kutatóközpont, Energia- és Környezetbiztonsági Intézet, Neutronspektroszkópiai Laboratórium
Beosztás: 
Tudományos Munkatárs
Tudományos fokozat: 
PhD
Konzulens: 
Név: 
Pokol Gergő
Email cím: 
pokol@reak.bme.hu
Intézet: 
Nukleáris Technika Intézet
Beosztás: 
Egyetemi docens
Tudományos fokozat: 
PhD
Leírás: 

Due to their large specific surface, the nano and mesoporous silica gels have special adsorption properties, thus they are emerging candidates for controlled delivery of bioactive materials like drugs or adsorption of poisonous materials. To synthesize such silica gels, the accurate description of the interactions between the silica matrix and – mostly water based – solutions are needed. The main target of our research is to describe and understand the relationship between the structure of the silica gels synthesized with different substituents (methyl, vinyl, phenyl, isobutyl) and the solution of biologically active molecules/heavy metals, and, based on the results, synthesizing of organically modified silica gels used as support for controlled drug delivery or heavy metals adsorption. The quantity of the substituents, hydrophobic/hydrophilic profile and porous structure will be taken in account to understand the solution diffusion in the silica supports. The role of the PhD candidate is to perform elastic (SANS), quasielastic and inelastic (backscattering and cold TOF spectrometry) neutron scattering measurements on functionalized porous silica gels to reveal the interactions between the surface of the silica and the liquids in the pores like water and aqueous solution of bioactive materials. The final goal is the complex description of the interactions taking into account the results of other kind of measurements e.g NMR, that helps the direct engineering of the silica gels for drug carriers. During his work the PhD candidate has to take part in the design and development of the neutron scattering instruments at the Budapest Research Reactor as well.

Elvárások: 
- English knowledge
- MsC in Physics, Chemistry or related disciplines
- Programming skills in Matlab, Python or C is advantageous,
- Knowledge of neutron/X-ray scattering methods and neutron optics is advantageous.
 
Munkahely neve: 
Energiatudományi Kutatóközpont
Munkahely címe: 
1121 Budapest, Konkoly-Thege Miklós u. 29-33