A Review of Carbon dots (CDs) Application in Sensing and Removing Medical Waste Ilham Alkian, Heri Sutanto, Bella Aprimanti Utami, Inten Rafika Duri, Dewi Qurrota A’yuni and H Hadiyanto E3S Web Conf., 202 (2020) 06004 Published online: 10 November 2020 DOI: 10.1051/e3sconf/202020206004