Arnav Padhi For the purpose of Minimum Inhibitory Concentration (MIC) testing, weigh the required quantity of graphene oxide (GO) powder in order to get concentrations of 1, 5, and 10 µg/mL. Dissolve the weighed GO powder in a solvent like deionized water or a buffer solution to create a stock solution, which will have a higher concentration than the desired working concentrations (e.g., 100 µg/mL).
Kumar, Neeraj, Katlego Setshedi, Mike Masukume, and Suprakas Sinha Ray. "Facile scalable synthesis of graphene oxide and reduced graphene oxide: Comparative investigation of different reduction methods." Carbon Letters 32, no. 4 (2022): 1031-1046.