Table 1. Chemical Composition, D_h Acquired from DLS, and Swelling Ratio, α, Calculated from eq 4 for the EM and EM-RX Nanoparticles Used in This Study^a.

	monomers/crosslinker
code	EA / mol %	MMA / mol %	RC / mol %	Dh in water / nm	Dh in DMF / nm	swelling ratio α
EM	65.0 (3.75 g)	35.0 (2.02 g)	0	77 ± 0.3	N.A.	N.A.
EM-R0.001	65.0 (3.75 g)	35.0 (2.02 g)	0.001 (0.001 g)	100 ± 0.2	373 ± 4.6	51.5
EM-R0.01	65.0 (3.75 g)	35.0 (2.02 g)	0.01 (0.007 g)	82 ± 0.7	300 ± 0.2	49.3
EM-R0.02	65.0 (3.75 g)	35.0 (2.02 g)	0.02 (0.013 g)	90 ± 0.2	298 ± 0.7	36.4
EM-R0.05	65.0 (3.75 g)	35.0 (2.02 g)	0.05 (0.033 g)	106 ± 0.4	336 ± 2.0	31.8
EM-R0.2	64.9 (3.74 g)	34.9 (2.01 g)	0.2 (0.130 g)	100 ± 0.6	273 ± 1.6	20.0
EM-R0.4	64.7 (1.87 g)	34.8 (1.01 g)	0.4 (0.13 g)	85 ± 0.2	200 ± 0.4	13.1

^aNote that D_h for EM-R0.001 and EM-R0.01 in DMF were calculated excluding small size components.