Potential Development of N-Doped Carbon Dots and Metal-Oxide Carbon Dot Composites for Chemical and Biosensing

• Published in: Nanomaterials (Basel, Switzerland) Vol. 12; no. 19; p. 3434
• Main Authors: Sahu, Yogita, Hashmi, Ayesha, Patel, Rajmani, Singh, Ajaya K., Susan, Md. Abu Bin Hasan, Carabineiro, Sónia A. C.
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 30.09.2022; MDPI
• Subjects: Ablation; Analysis; Biocompatibility; Biological properties; Biomass; Biosensors; Cadmium; Carbon; Carbon dots; Chemical perception; Chemical reactions; chemical sensing and biosensing; Chemical synthesis; Chemistry; Chemoreception; Composite materials; Contaminants; Cost effectiveness; Environmental impact; Graphene; Identification and classification; Laboratories; Membrane permeability; Metal oxides; metal-based CDs composites; Metallic oxides; Metals; Methods; N-CDs; Nanocomposites; Nanomaterials; Nanoparticles; Nanotechnology; Natural resources; Optical properties; Pesticides; Photoluminescence; Photons; Properties; Quantum dots; Renewable resources; Review; Sensors; Sustainable yield; Water quality; Water resources; Israel; N-CDs; metal-based CDs composites; properties; chemical sensing and biosensing
• ISSN: 2079-4991; 2079-4991
• DOI: 10.3390/nano12193434

Among carbon-based nanomaterials, carbon dots (CDs) have received a surge of interest in recent years due to their attractive features such as tunable photoluminescence, cost effectiveness, nontoxic renewable resources, quick and direct reactions, chemical and superior water solubility, good cell-membrane permeability, and simple operation. CDs and their composites have a large potential for sensing contaminants present in physical systems such as water resources as well as biological systems. Tuning the properties of CDs is a very important subject. This review discusses in detail heteroatom doping (N-doped CDs, N-CDs) and the formation of metal-based CD nanocomposites using a combination of matrices, such as metals and metal oxides. The properties of N-CDs and metal-based CDs nanocomposites, their syntheses, and applications in both chemical sensing and biosensing are reviewed.