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. Author manuscript; available in PMC: 2014 Jun 18.
Published in final edited form as: Anal Chem. 2013 Jun 7;85(12):5810–5818. doi: 10.1021/ac400486u

Figure 1.

Figure 1

Growth of S. oneidensis in the presence of TiO2 nanoparticles. (A) Exponential phase of bacteria grown in the presence of varying concentrations of as-syn TiO2 nanoparticles. Inset indicates growth rate of bacteria as determined by Equation 4.1. (B) Exponential phase of growth, with optical density at time = 0h subtracted to take into account scattering from as-syn nanoparticles. Statistical analysis of the linear regression of control and nanoparticle-exposed S. oneidensis revealed that all concentrations of nanoparticle-exposure regressions are statistically different than the control (p<0.001). (C) Comparison of the growth of S. oneidensis in the presence of 25 µg/mL as-syn, P25, or T-Eco nanoparticles.