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. 2009 Jul 8;97(1):205–210. doi: 10.1016/j.bpj.2009.04.036

Figure 5.

Figure 5

End-to-end collision rates are linearly related to solvent viscosity (all R2 > 0.91) when we add glucose to increase the viscosity of our buffer (viscosity = 1.0). Of note, the viscosity of glucose solutions is a strongly nonlinear function of glucose concentration (25) and thus, although the observed rates are well correlated with viscosity, they are poorly correlated with glucose concentration.