1. Department of Physics and Materials Engineering, Tomas Bata University in Zlín, Vavrečkova 5669, Zlín 760 01, Czech Republic
2. Centre of Polymer Systems, Tomas Bata University in Zlín, Třída Tomáše Bati 5678, Zlín 760 01, Czech Republic
3. Department of Biomaterials, Faculty of Engineering Science, Universität Bayreuth, Prof.-Rüdiger-Bormann.Str. 1, Bayreuth 95447, Germany