Extraction and characterization of antibacterial and antibiofilm Carbon nanodots from Havan smoke

Abstract

From time immemorial, smoke of medicinal plants has been widely reported for curing disorders. Smoke produced from natural substances has been used extensively in many cultures and rituals. Burning of havan samagri (mixture of wood and odoriferous and medicinal herbs) is a popular practice during religious rituals. In the following study, carbon nanodots were extracted from Havan smoke and their identity was confirmed by characterizing them using standard characterization analytics. The antibacterial activity of the carbon nanodots extracted from the smoke was evaluated by testing them against pathogenic coliforms and oral bacteria. Further carbon coatings were developed by dip coating method using carbon nanodot suspensions obtained from Havan smoke. The antibiofilm ability of these carbon coatings was validated against Staphylococcus aureus biofilms. The results confirmed the antibacterial and antibiofilm activity of the Havan smoke-derived carbon nanodots. This is the first report that highlights the extraction of carbon nanodots from Havan smoke and discusses it antibacterial property.