Prakash Arjun, Muthu Manikandan, Raja Gnanadeepam, Gopal Judy
Saveetha Medical College, Saveetha Institute of Medical and Technical Sciences (SIMATS), Thandalam, Chennai - 602105, Tamil Nadu, India.
Department of Research and Innovation, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences (SIMATS), Thandalam, Chennai - 602105, Tamil Nadu, India.
Nanotheranostics. 2025 Jan 1;9(1):31-37. doi: 10.7150/ntno.99825. eCollection 2025.
In an era where chemical synthesis of nanomaterial is accounting for the generation of toxic wastes, leading to nanotoxicity, the present work focuses on the extraction of carbon nanodots from available natural sources such as turmeric smoke. The extracted carbon nanodots were characterized and their physical and chemical attributes were confirmed. The antibacterial property of the isolated carbon nanodots was tested against coliforms and oral bacteria. The results indicated that the carbon nanodots possessed highly versatile antibacterial activity. Carbon coatings were prepared by dip-dry method from the turmeric smoke-derived nanodots. The carbon-coated glass surfaces showed biofilm-repellant activity when exposed to pathogenic Staphylococcal cultures. The bactericidal and antibacterial activity of the in-house extracted carbon nanodots was proved. This study introduces an ecofriendly and simple rapid carbon nanomaterial synthesis process from smoke which can be extended for various other applications too.
在一个纳米材料的化学合成会产生有毒废物并导致纳米毒性的时代，当前的工作重点是从姜黄烟雾等可用天然来源中提取碳纳米点。对提取的碳纳米点进行了表征，并确认了它们的物理和化学属性。测试了分离出的碳纳米点对大肠菌群和口腔细菌的抗菌性能。结果表明，碳纳米点具有高度通用的抗菌活性。通过浸干法由姜黄烟雾衍生的纳米点制备了碳涂层。当暴露于致病性葡萄球菌培养物时，碳涂层玻璃表面显示出抗生物膜活性。证明了内部提取的碳纳米点的杀菌和抗菌活性。这项研究引入了一种环保且简单快速的从烟雾中合成碳纳米材料的方法，该方法也可扩展用于各种其他应用。
