Synthesis of a Curcumin based Carbon Dot with High Quantum Yield

Nanotechnology breakthroughs today lead to new discoveries in medical sciences. Carbon dots are low-toxicity and biocompaible nanomaterials with sizes less than ۱۰ nanometers that exhibit unique optical properties. The fundamental ingredients that make them an emissive particle are their carbon backbone, functional groups, and surface deficits. Carbon dots have great light stability and are resistant to photo bleaching, making them an excellent choice for bio-imaging. Here in this study curcumin – a beta-diketone molecule with two aromatic rings - as a known natural anti-inflammatory compound was used for synthesis of carbon dots by hydrothermal method. The effects of the presence of amino acids with aromatic side chain, urea and citric acid on the quantum yield and spectral properties of the synthesized carbon dots were investigated. The highest quantum yield was achieved by having curcumin, phenylalanine, urea and citric acid in the reaction.

کلیدواژه ها:

carbon dots ، curcumin ، amino acid ، bio-imaging.