Highly Efficient Antibacterial Polymer Composites Based on Hydrophobic Riboflavin Carbon Polymerized Dots

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Authors	MARKOVIĆ Zoran M. KOVÁČOVÁ Mária JEREMIĆ Sanja R. NAGY Štefan MILIVOJEVIĆ Dušan D. KUBAT Pavel KLEINOVÁ Angela BUDIMIR Milica D. MOJSIN Marija M. STEVANOVIĆ Milena J. ANNUŠOVÁ Adriana ŠPITALSKÝ Zdeno TODOROVIĆ MARKOVIĆ Biljana M.
Year of publication	2022
Type	Article in Periodical
Magazine / Source	Nanomaterials
MU Faculty or unit	Faculty of Science
Citation
Web	https://www.mdpi.com/2079-4991/12/22/4070
Doi	http://dx.doi.org/10.3390/nano12224070
Keywords	riboflavin; carbon polymerized dots; polymer composites; antibacterial surfaces
Description	Development of new types of antimicrobial coatings is of utmost importance due to increasing problems with pathogen transmission from various infectious surfaces to human beings. In this study, new types of highly potent antimicrobial polyurethane composite films encapsulated by hydrophobic riboflavin-based carbon polymer dots are presented. Detailed structural, optical, antimicrobial, and cytotoxic investigations of these composites were conducted. Low-power blue light triggered the composites to eradicate Escherichia coli in 30 min, whereas the same effect toward Staphylococcus aureus was reached after 60 min. These composites also show low toxicity against MRC-5 cells. In this way, RF-CPD composites can be used for sterilization of highly touched objects in the healthcare industry.
Related projects:	Postdoc2MUNI