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Bachelor's Thesis
Author of thesis: Veronika Šromová
Acad. year: 2025/2026
Supervisor: prof. Mgr. Dinara Sobola, Ph.D.
Reviewer: prof. Eric Daniel Glowacki, Ph.D.
This bachelor thesis investigates the intersection of surface topography and capillary forces as tools for spatial control of cellular behavior. The work first explores the biological mechanisms of cell-substrate interaction, emphasizing the role of integrins and mechanotransduction pathways in responding to micro- and nanoscale cues. Furthermore, the thesis analyzes the principles of capillary action and its applicability in various microfluidic architectures for particle and cell manipulation. Experimentally, microstructured substrates featuring variable geometries were designed and fabricated using 3D resin printing. Contact angle measurement confirmed that these structures facilitate meniscus formation, allowing for the creation of defined liquid topographies driven by surface tension. Morphological characterization via scanning electron microscopy (SEM) was performed to define printability limits and optimize structural parameters. Furthermore, in vitro cytotoxicity assessment was conducted using the LW13K2 cell line. To decouple material toxicity from topographical effects, the fabrication workflow was systematically optimized by evaluating ten distinct UV post-curing intervals and comparing two sterilization protocols. Quantitative image analysis and statistical modeling (Two-Way ANOVA) definitively demonstrated that autoclave sterilization provides a highly significant improvement in cell viability over ethanol, whereas extended UV post-curing yields no additional biological benefit. Finally, direct biological testing was conducted on the optimized substrates to evaluate the influence of the fabricated microtopographies on cellular adhesion, proliferation, and spatial organization. The results indicate that surface treatment and structural design strongly affect cell colonization behavior and demonstrate the potential for future tissue engineering applications.
cell adhesion, substrate surface, mechanotransduction, capillary phenomena
Date of defence
17.06.2026
Date of publish
16.06.2028
Result of the defence
Defended (thesis was successfully defended)
Grading
A
Process of defence
Studentka prezentovala výsledky své práce a komise byla seznámena s posudky. Ing. Zumberg položila otázku: Byly vzorky ošetřeny po procesu polymerizace? Ing. Mézl položil otázku: Co jste používala za segmentaci? Studentka obhájila bakalářskou práci a odpověděla na otázky členů komise a oponenta.
Language of thesis
English
Faculty
Fakulta elektrotechniky a komunikačních technologií
Department
Department of Biomedical Engineering
Study programme
Biomedical Technology and Bioinformatics (BPC-BTB)
Composition of Committee
prof. Ing. Martin Augustynek, Ph.D. (předseda) Ing. Martin Mézl, Ph.D. (místopředseda) MUDr. Tibor Stračina, Ph.D. (člen) Mgr. Monika Čechová, Ph.D. (člen) Ing. Lukáš Smital, Ph.D. (člen) Ing. Inna Zumberg (člen)
Supervisor’s reportprof. Mgr. Dinara Sobola, Ph.D.
Grade proposed by supervisor: A
Reviewer’s reportprof. Eric Daniel Glowacki, Ph.D.
Grade proposed by reviewer: A
Reasons for publication postponement
Publication of the final thesis has been postponed in compliance with the provisions of Section 47b (4) of Act No. 111/1998 Coll., on the Higher Education Institutions and on amendments and supplements to other acts, as amended.
The thesis contains results that are currently being prepared for publication in peer-reviewed journal. In order to protect unpublished data and to ensure the originality of the forthcoming publications, the thesis is subject to temporary confidentiality.
Responsibility: Mgr. et Mgr. Hana Odstrčilová