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Modeling controlled release
 Čelková, Ivana ; Smilek, Jiří (referee) ; Pekař, Miloslav (advisor)
This bachelor's thesis is focused on the controlled release of drugs from hydrogels and the subsequent simulation of this process using the COMSOL Multiphysics computing platform. The aim of the work is to propose a simple model describing the release from the hydrogel structure, to study the effect of diffusion coefficient and to perform simulations on this model and evaluate the results related to controlled release. As part of the thesis, two models were created to investigate the release of particles from the hydrogel. Simulations of this process were carried out for three selected diffusion coefficients (110-9, 110-10, 110-11 m2s-1) and were subsequently discussed in terms of the influence on the speed of particle transport. Two procedures were chosen to determine the total concentration of the released substance in vicinity of the hydrogel, i.e. using the integration of the area of the aqueous environment (in a two-dimensional model) and monitoring the flow of particles through the phase interface of the hydrogel and the aqueous environment.
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