“…[20][21][22] For example, Murru et al conducted a study where CDs were prepared from vegetable wastes using a hydrothermal method. 23,24 The obtained CDs exhibited excellent antioxidant activity. Similarly, Yun et al synthesized CQDs from red cabbage through hydrothermal means and tested their efficacy against DPPHc, cOH, and KMnO 4 radicals.…”