%0 Journal Article %T Efficient dual-mode colorimetric/fluorometric sensor for the detection of copper ions and vitamin C based on pH-sensitive amino-terminated nitrogen-doped carbon quantum dots: effect of reactive oxygen species and antioxidants %A Kalaiyarasan, Gopi %A Joseph, James %J Analytical and Bioanalytical Chemistry %V 411 %N 12 %P 2619-2633 %@ 1618-2642 %D 2019-03-23 %I Springer Berlin Heidelberg %~ DeepDyve