Inhabitation of various types of bacteria on different surfaces causes vital health problems worldwide. In this work, a wound dressing defeating bacterial infection had been fabricated. The antibacterial effect of polycaprolactone and hydrophobic carbon quantum dots (hCQDs) based nanocomposite has been presented. The nanocomposite was fabricated both via solvent casting and electrospinning method. Nanocomposites with and without hCQDs had been investigated. A detailed study on their morphology and surface properties were performed by scanning electron microscopy, atomic force microscopy and Raman spectroscopy. Prepared nanocomposites had been evaluated by the contact angle, UV-Vis spectroscopy, electron paramagnetic resonance spectroscopy, and antibacterial activity. It was found that nanocomposites were able to produce singlet oxygen upon blue light irradiation at 470 nm, and they were effective in the eradication of Gram positive (Staphylococcus aureus, Listeria monocytogenes) and Gram negative (Escherichia coli, Klebsiella pneumoniae) bacteria.

Centre for Polymer System and Faculty of Technology Tomas Bata University in Zlín Trida Tomase Bati Zlin 5678 Czech Republic

Division of Pharmaceutics Department of Pharmaceutical Technology Jadavpur University Kolkata India

Institute of Physics Slovak Academy of Sciences Dúbravská cesta 9 Bratislava 845 11 Slovakia

Polymer Institute Slovak Academy of Sciences Dubravska cesta 9 Bratislava 845 41 Slovakia

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