Table 1.

Hydrodynamic radii (R_h) and swelling properties of microgels under different pH conditions.

Particle Type	Rh (nm) pH 7.4	Rh (nm) pH 3.0	ζ (mV) pH 7.4	ζ (mV) pH 3.0	D %*
1% x-link μGel	570	324	−20.5	−4.1	43
3% x-link μGel	433	303	−17.3	−3.3	30
88 nm PS	48	46	N/A	N/A	N/A**
200 nm PS	101	96	N/A	N/A	N/A**

All R_h values were determined by DLS @ 25 °C.

All ζ potentials were determined by electrophoretic light scattering

^*pH dependent deswelling percentage.

^**No statistical difference in radii between pH 3 and 7. (t-test 95%)