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. Author manuscript; available in PMC: 2012 Oct 15.
Published in final edited form as: Anal Biochem. 2011 Jun 30;417(2):211–219. doi: 10.1016/j.ab.2011.06.030

Table 3.

Typical diffusivities for various tracers in water at room temperature [48].

Particle Typical size Diffusion coefficient (μm2/s)
Solute ion 10−1 nm 2 × 103
Small protein 5 nm 40
Virus 100 nm 2
Bacterium 1 μm 0.2
Mammalian/human cell 10 μm 0.02