Development of fluorescence sensor based on molecularly imprinted carbon quantum dots for sensitive and selective detection of rutin

A sensitive and selective fluorescence sensor for rutin was successfully developed. The sensor was fabricated from highly fluorescent nitrogen-boron co-doped carbon quantum dots (N,B-CDs) coated with mesoporous silica molecularly imprinted polymer (MIP). Rutin was detected by this sensor (N,B-CDs @ MIP) with a linear range of 0.08–30 μM and a detection limit as low as 0.05 μM, under optimal conditions. Meanwhile, the usefulness of the developed sensor was evaluated in samples of lake water, orange, and honey with satisfactory recoveries. Graphical