Table 2. Modal Diameters and fwhm Values of the Volume-Weighted Size Distributions of the Samples in Table 1 and the Mixed Sample (Mix) as Measured by LD, DLS, DCS, and SEM^a.

	LD		LD (mix)		DCS		DLS		SEM
sample	mode (nm)	fwhm (nm)	mode (nm)	fwhm (nm)	mode (nm)	fwhm (nm)	mode (nm)	fwhm (nm)	mode (nm)	fwhm (nm)
PS60	57.5 ± 0.3	15.3 ± 0.1			60 ± 2	10 ± 1	63 ± 2	36.6 ± 0.6
PS125	123 ± 1	32.8 ± 0.2	93.9 ± 0.5	24.9 ± 0.1	125 ± 2	11 ± 0.4	144 ± 2	86 ± 1
PS197	211 ± 1	56.5 ± 0.3			197 ± 4	9 ± 0.6	238 ± 4	153 ± 10
PS400	390 ± 2	67 ± 2	419 ± 2	120 ± 1	400 ± 8	27 ± 2	451 ± 4	241 ± 3
PS590	592 ± 3	116 ± 1			591 ± 10	24 ± 2	700 ± 30	340 ± 40
PSM2	2000 ± 10	295 ± 1	2010 ± 10	398 ± 2	2000 ± 40	160 ± 20			2040 ± 50	80.7 ± 0.4
PSM20	21,100 ± 100	4340 ± 20	21,300 ± 100	4230 ± 20					22,200 ± 1700	3360 ± 17
PSM40	40,000 ± 200	8400 ± 40	40,700 ± 200	8970 ± 120					41,000 ± 3000	7070 ± 40

^aThe uncertainty is the standard deviation from repeat measurements, except for SEM measurements. See the Materials section and Supporting Information for a detailed description of the fitting for all the techniques and an estimation of SEM uncertainties (Figures S1–S4 and Table S4).