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Bachelor's Thesis
Author of thesis: Ing. Jana Mourycová
Acad. year: 2010/2011
Supervisor: prof. Ing. Miloslav Pekař, CSc.
Reviewer: prof. Ing. Ladislav Omelka, DrSc.
In this bachelor thesis, was studied influence of pH on aggregation polyelectrolyte-surfactant system using fluorescence spectroscopy and pyrene as fluorescent probe was used. As polyelectrolyte, hyaluronan with different molecular weight was used. Two surfactants cationic surfactant cetyltrimethylamonium bromide (CTAB) and nonionic surfactants polyoxyethylene (20) (TWEEN 20) were selected for interaction with hyaluronan. In the pH range from 3 to 10, no signifact changes in the aggregate non-polar core was observed. This mean system is stable against changes in the observed pH range. At system with higher concentrations of cationic surfactant (CTAB) and higher molecular weight hyaluronan occurred phase separation and gel exclusion was observed.
hyaluronan, pyrene, surfactants, pH, fluorescence spektroscopy
Date of defence
21.06.2011
Result of the defence
Defended (thesis was successfully defended)
Grading
A
Process of defence
Klučáková – Kolikrát bylo měření opakováno, proč nejsou u CMC uvedeny chyby stanovení? Prchal – Odkud bylo zjištěno působení dané látky v oblasti tumoru, v BP chybí zdroj (odkaz)? Taraba – Proč byla pro měření zvolena hodnota pH = 10? Veselý – Jaký je rozdíl mezi směrodatnou odchylkou a směrodatnou odchylkou výběr?
Language of thesis
Czech
Faculty
Fakulta chemická
Department
Institute of Physical and Applied Chemistry
Study programme
Chemistry and Chemical Technologies (BPCP_CHCHT)
Field of study
Consumer Chemistry (BPCO_SCH)
Composition of Committee
prof. Ing. Martina Klučáková, Ph.D. (předseda) prof. Ing. Boleslav Taraba, CSc. (místopředseda) prof. RNDr. Vítězslav Otruba, CSc. (člen) doc. Ing. Václav Prchal, CSc. (člen) prof. Ing. Michal Veselý, CSc. (člen)
Supervisor’s reportprof. Ing. Miloslav Pekař, CSc.
Grade proposed by supervisor: A
Reviewer’s reportprof. Ing. Ladislav Omelka, DrSc.
Grade proposed by reviewer: B
Responsibility: Mgr. et Mgr. Hana Odstrčilová