Aneta Liber-Kneć1, Sylwia Łagan1. 1. Zakład Mechaniki Doświadczalnej i Biomechaniki, Instytut Mechaniki Stosowanej, Wydział Mechaniczny, Politechnika Krakowska, Kraków, Polska.
Abstract
BACKGROUND: In the interaction process between implant and a living organism an important role is covered by the material layer. Many studies in the field of chemical engineering concern biomaterials surface. OBJECTIVES: Changes estimation of properties of polymers surface layer due to hydrolytic degradation on the base on measurements of contact angles and calculation of the surface free energy. MATERIAL AND METHODS: Contact angle measurements were made for the two polymers: polylactide (PLA) and polyhydroxyalkanoate (PHA) undergoing the hydrolytic degradation process over a period of 27 months. Based on the measured values of contact angles, surface free energy by the Owens-Wendt method and the critical surface tension were calculated. RESULTS: The surface for both tested polymers is hydrophilic. Hydrolytic degradation influences the growth of the surface free energy and the critical surface tension. CONCLUSIONS: Methodology can be a easily available for the initial assessment of the material from the point of view of the ability to cell adhesion and the progress of the degradation process.
BACKGROUND: In the interaction process between implant and a living organism an important role is covered by the material layer. Many studies in the field of chemical engineering concern biomaterials surface. OBJECTIVES: Changes estimation of properties of polymers surface layer due to hydrolytic degradation on the base on measurements of contact angles and calculation of the surface free energy. MATERIAL AND METHODS: Contact angle measurements were made for the two polymers: polylactide (PLA) and polyhydroxyalkanoate (PHA) undergoing the hydrolytic degradation process over a period of 27 months. Based on the measured values of contact angles, surface free energy by the Owens-Wendt method and the critical surface tension were calculated. RESULTS: The surface for both tested polymers is hydrophilic. Hydrolytic degradation influences the growth of the surface free energy and the critical surface tension. CONCLUSIONS: Methodology can be a easily available for the initial assessment of the material from the point of view of the ability to cell adhesion and the progress of the degradation process.
Authors: Joanna Brzeska; Grzegorz Jasik; Wanda Sikorska; Barbara Mendrek; Jakub Karczewski; Marek Kowalczuk; Maria Rutkowska Journal: Polymers (Basel) Date: 2022-05-20 Impact factor: 4.967
Authors: J Skopinska-Wisniewska; K Wegrzynowska-Drzymalska; A Bajek; M Maj; A Sionkowska Journal: J Mater Sci Mater Med Date: 2016-02-17 Impact factor: 3.896