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Modeling of biologically relevant lipid multilayers in the context of drug delivery
 Saija, Maria Chiara ; Cwiklik, Lukasz (advisor) ; Szczęsna-Iskander, Dorota (referee) ; Heyda, Jan (referee)
Understanding the topical drug delivery at basic physico-chemical and biophysical levels is still challenging. One of the main reasons is the specificity of the processes involved, depending on the delivery target. The tear film lipid layer plays a vital role in ocular health and serves as a target for topical ophthalmic drug delivery. This doctoral thesis investigates two topics related to topical eye delivery, including a case study of drug delivery systems and their major components in the tear film lipid layer, and the effect of a lipid modification on a lipid-associate peptide as a potential drug. This research is conducted by using molecular dynamics simulations, which are comple- mented by various experimental techniques. The research about the drug delivery systems is threefold: the first objective is to study the impact of commonly used preservatives on the tear film lipid layer; the second one is to explore the influence of the latanoprost drug on the tear lipids; the third one is to investigate different drug delivery systems containing latanoprost drug and their interaction with the lipid layer in the tears. These studies are conducted by combining molecular dynamics simulations and the experiments involving the Langmuir-type lipids film. The key findings of this research have practical...
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