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. Author manuscript; available in PMC: 2017 Apr 1.
Published in final edited form as: Environ Sci Nano. 2016 Feb 24;3(2):365–374. doi: 10.1039/C5EN00271K

Figure 4. Dissolution of Cu2+ from small and large CuO NPs.

Figure 4

Different concentrations of particles (5, 50 and 125 µg/ml which are equal to 0.06, 0.63 and 1.57 mM, respectively) were sonicated at 40% amplitude for 1 min and then incubated in RPMI-1640 complete media for 1, 4, 24 and 48 h. The data were plotted using free Cu2+ in media against time and expressed as mean ± SD (n = 3).