Course: Transport phenomena in porous materials

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Course title Transport phenomena in porous materials
Course code KCH/TJPM
Organizational form of instruction Lecture + Lesson
Level of course Master
Year of study not specified
Semester Summer
Number of ECTS credits 5
Language of instruction Czech, English
Status of course Compulsory
Form of instruction Face-to-face
Work placements Course does not contain work placement
Recommended optional programme components None
  • Kuželová Košťáková Eva, doc. Ing. Ph.D.
Course content
Lectures: 1. Capillarity - interface deformation (surface tension and surface energy). 2. Laplace capillary pressure, adhesion and adhesion energy. 3. Wetting - contact between three phases, spreading coefficient, measurement of contact angles (introduction). 4. Contact angle measurement - conditions, problems of rough and porous surfaces, dynamic contact angles, contact angle hysteresis. 5. Perfect wetting - conditions. 6. Capillary length, drop sizes and wet surface wetting regimes, meniscus and its characterization. 7. Rayleigh-Plateau instability. 8. Lucas-Washburn equation - wetting dynamics of porous materials at different angle of rotation towards penetrating liquid. 9. Washburn method for estimating the contact angle for porous materials and for porous swelling materials (fibrous materials, powders, foams, etc.). 10. Wetting of textured surfaces - equilibrium contact angle on the surface of porous material. 11. Transport phenomena - chemical gradient, temperature gradient, reactive wetting, transport by electric field. 12. Biomaterials in wetting, methods of surface characterization of biomaterials. 13. Wetting of biomaterials - influence of surface characteristics, water in biomaterials. 14. Simulation of wetting of porous materials (Ising model). Exercises: The lectures will be practiced at seminars.

Learning activities and teaching methods
Project teaching, Problematic methods (research and exploration), Lecture
  • Home preparation for classes - 10 hours per semester
  • Preparation for exam - 60 hours per semester
  • Class attendance - 56 hours per semester
Learning outcomes
The course focuses on the basics of capillary, surface and interfacial phenomena. The aim is to better understand the relationships between surfaces of biomaterials and their manifestations or characteristics, especially in contact with cell cultures in both in-vitro or in-vivo tests and in the final application. Students are basically familiarized with the concepts of surface and interfacial stresses and energies, their measurement and influencing. Students are presented with conditions for partial and perfect wetting as well as perfect hydrophobicity. Hydrodynamic instabilities in wetting of biomaterials with different liquids have been described.
Theoretical knowledge and practical skills in the field.

Assessment methods and criteria
Combined examination

Attendance at seminars, written and oral exam.
Recommended literature
  • De GENNES P.-G. BROCHARD-WYART F. QUERE D. Capillarity and Wetting Phenomena. Springer, 2004. ISBN 0-387-00592-7.
  • PAN N. GIBSON P. Thermal and moisture transport in fibrous materials. Woodhead Publishing Limited, Cambridge. ISBN 978-1-84569-057-1.
  • RARTNER B. D., HOFFMAN A. S. SCHOEN F. J. LEMONS J. E. Biomaterials Science: An Introduction to Materials in medicine. Elsevier Academic Press, 2004. ISBN 012-582463-7.

Study plans that include the course
Faculty Study plan (Version) Category of Branch/Specialization Recommended year of study Recommended semester