Facile Synthesis of Nitrogen-doped Carbon Quantum Dots for Bio-imaging Persia Ada N. de Yro, Beejay T. Salon, Blessie A. Basilia, Mark Daniel de Luna and Peerasak Paoprasert MATEC Web of Conferences, 43 (2016) 04002 Published online: 19 February 2016 DOI: 10.1051/matecconf/20164304002