Photolysis Dynamics Laser Chemistry Lab

    Recently, Carbon-dots (C-dots) and Silicon quantum dots (SiQD) received extensive attention due to its fascinating significance for the development of low-cost and high sensitivity chemical and biosensors systems. C-dots and SiQD exhibits tremendous characteristics such as non-toxicity, biocompatibility, photostability, facile, rapid and low cost for synthesis, easy for surface modification, and excellent photoluminescence properties. Due to these unique properties, developing C-dots and SiQD as a new material to perform chemical and biosensors should be worthwhile. We are developing a facile detection method for metal ions and anions based on the mechanism of fluorescence resonance energy transfer (FRET) and electron transfer processes.

     we have demonstrated that the C-dots based fluorescent off - on (Fe₃⁺ - S2O32−) and on - off (Zn2+ - PO43−) sensors for the detection of metal ions and anions. The sensor system exhibits excellent selectivity and sensitivity towards the detection of biologically important Fe3+, Zn2+ metal ions and S2O32−, PO43− anions.