Table 2.

Diffusivities obtained from differential dynamic microscopy experiments for unary (top rows) and bidisperse (labeled with volume fraction ratio r) samples

			Diffusion coefficient [μm2/s]
	Radius [nm]	ϕ	D S	D L
	50	10−3	a	0.22 ± 0.01
r  =  ϕ L/ϕ s	1000	10−5	4.1 ± 0.1	a
0.003	50	10−3	4.3 ± 0.3b	0.20 ± 0.01
	1000	3 × 10−6
0.01	50	10−3	4.0 ± 0.2b	0.19 ± 0.01
	1000	1 × 10−5
0.03	50	10−3	4.4 ± 0.4b	0.20 ± 0.01
	1000	3 × 10−5

Error bars are numerical uncertainty from fitting functions. Stokes-Einstein diffusivities are 4.3 and 0.21 μm²/s for small and large particles, respectively

^a measurements made on unary samples lacking this particle population

^b calculated from the experimentally-measured large-particle diffusivity using the globally-fit size ratio f _r