A novel bioinspired carbon quantum dots based optical sensor for ciprofloxacin detection

Green route has been a centre of attraction for synthesizing carbon quantum dots from natural sources owing to its outstanding optical properties. In the current work, a novel bioinspired and fluorescent carbon quantum dots were prepared from Cinnamomum tamala (tejpata) leaves extract utilizing a simple one-step hydrothermal method for the first time. The current method delivers a high quantum yield of 31% having 340 nm excitation wavelength for detection of ciprofloxacin. The developed fluorescent sensor showed ciprofloxacin detection in the linear range of 1 to 100 mu M, with a detection limit of 6.06 mu M.

Automated summary

A novel bioinspired and fluorescent carbon quantum dots were successfully prepared from tejpata leaves extract using a simple hydrothermal method in this study. The developed fluorescent sensor showed excellent detection ability for ciprofloxacin with a high quantum yield of 31%.