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. 2016 Feb 9;6:21379. doi: 10.1038/srep21379

Figure 2. Dissolution curves of ZnONPs and SiO2NPs (50 mg L−1) in pristine-ZnO/SiO2NP dialysis (◼) (pristine E. coli with NP dialysis), low EPS-ZnO/SiO2NP dialysis (◻) (EPS removal with NP dialysis), pristine-ZnO/SiO2NPs (●) (pristine E. coli), and low EPS-ZnO/SiO2NPs (○) (EPS removal by sonication/centrifugation).

Figure 2

(A) ZnONPs; (B) SiO2NPs. Dissolved zinc and silicon concentrations were determined after filtration through a 0.22-μm membrane. Error bars represent standard deviations of triplicate samples.