**4. Conclusions**


**Author Contributions:** Conceptualization, L.R.; methodology, L.R.; software, L.R. and M.Š.; validation, L.R. and R.T.; formal analysis, L.R. and M.Š.; investigation, L.R., R.T. and M.Š.; resources, L.R. and M.Š.; data curation, L.R. and M.Š.; writing—original draft preparation, L.R.; writing—review and editing, L.R. and R.T.; visualization, L.R. and M.Š.; supervision, L.R.; project administration, L.R.; funding acquisition, L.R. All authors have read and agreed to the published version of the manuscript.

**Funding:** This work was supported by the Slovak Research and Development Agency under contract no. APVV-17-0583.

**Acknowledgments:** We would like to thank the company Chemolak Smolenice Ltd., Slovakia for providing part of the materials for this research.

**Conflicts of Interest:** The authors declare no conflict of interest.
