Data for: A convenient way of activating carbon quantum dots and the efficient isolation

Active N-hydroxysuccinimide (NHS) ester was introduced chemically onto the CQDs in very mild conditions. Such activated CQDs could be extracted by ethyl acetate from the mixture efficiently and conveniently. The high reactivity of NHS moiety was demonstrated by the reaction with bovine serum albumin, which revealed in an experiment of sodium dodecyl sulfate polyacrylamide gel electropheresis and the fluorescence imaging.