Alexandru Mihai Grumezescu is a lecturer in the Department of Science and Engineering of Oxide Materials and Nanomaterials, at the Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, Romania. He is an experienced researcher and published editor in the field of nano and biostructures. He is the editor-in-chief of two international open access journals: Biointerface Research in Applied Chemistry, Letters and Applied NanoBioScience. Dr. Grumezescu has published more than 200 peer-reviewed papers, authored nine books, and has served as an editor for more than 50 scholarly books. Alina-Maria Holban is a lecturer in Microbiology and Immunology, at the Faculty of Biology, University of Bucharest; and associate researcher at the University Politehnica of Bucharest, Romania. Her primary area of research is the development of bionanomaterials with antimicrobial applications. Dr. Holban has published 75 papers in peer-reviewed journals, 42 conference/symposia proceedings, and has edited more than 21 edited books.