**Author details**

Ana-Alexandra Sorescu1,2\*, Alexandrina Nuta1,3, Rodica-Mariana Ion1,2 and Lorena Iancu1

\*Address all correspondence to: anaalexandrasorescu@yahoo.com

1 The National Research and Development Institute for Chemistry and Petrochemistry— ICECHIM, Evaluation and Conservation of Cultural Heritage, Bucharest, Romania

2 Materials Engineering Doctoral School, Valahia University, Târgoviște, Romania

3 The Romanian Academy, "Stefan S. Nicolau" Institute of Virology, Bucharest, Romania
