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Long-term dissolution of 100 mg/L bulk and nano ZnO (Alfa Aesar 44904) in Dulbecco’s Modified Eagle’s Medium (DMEM) (a) and Roswell Park Memorial Institute medium (RPMI) (b) (each with and without 2 mg/ml bovine serum albumin [BSA]). Y-axis for all graphs is Zn concentration in filtrate. Error bars are 95% confidence intervals.
