Preparing MMA-Coated CVD Graphene for Fabrication of Graphene-Coated CryoEM Grids

Begin by preparing a graphene etching solution in a 50 milliliter beaker. To do so, add 4.6 grams of ammonium per sulfate, or APS, to 20 milliliters of molecular grade water in the beaker. Cover it with aluminum foil and allow the APS to dissolve