Ms. Anna Poryvai Dipl. Eng.
Future Forces Forum Future Forces Exhibition 2016 Future Soldier Systems Conference (FSSC) 2016
University of Chemistry and Technology Prague
Promesogenic Photosensitive Ligands for Magnetic Nanoparticles Modification
POSTER: Combination of magnetic nanoparticles (NPs) and liquid crystalline matrixes (LCM) gives rise to new metamaterials, which are of high interest because of their unique properties (negative perimitivity, permeability or refractive index) and can be used for the construction of ideal lenses or new advanced ferroelectric LCDs.
Stable colloidal systems are achieved by using NPs modified with various types of promesogenic/mesogenic ligands (ranging from amines and thiols to carboxylic and phosphonic acids.). Additional surfactant usage leads to the significant changes in the ligands topological arrangement, what negatively affects metamaterials properties or also causes surfactant desorption from the NPs surface leading to the LCM contamination.
Herein, we have designed and synthesized new promesogenic chiral photosensitive ligands, which are used not only to stabilize nanoparticles in the matrixes, but also to “switch off” the mesomorphic behaviour of the bulk composite upon UV-irradiation.
2007 - 2011 Bachelor degree in organic chemistry, KhNU
2012 - 2014 Master degree in organic chemistry, UCT Prague
2014 - now Ph.D. study, UCT Prague
- Danilevskij Institute (organic synthesis, multicomponent reactions)
- UCT (organic synthesis, liquid crystals)
- Interpharma (praxis, organic synthesis, radiocontrast substances)
- Project research fellow – Hybrid and nanocomposite systems bysed on mesogenic compounds and nanoparticles