. Author manuscript; available in PMC: 2016 Apr 2.

Published in final edited form as: Adv Healthc Mater. 2014 Dec 22;4(5):714–722. doi: 10.1002/adhm.201400458

Table 1.

DEX-HEMA hydrogel swelling ratio measurements and theoretical mesh size calculation

Day	Q_m	v_2,s	M_c (Da)	ζ (nm)
0 (initial)^a)	6.393	0.122^b)	-	-
1	5.678	0.135	1135	4.658
3	6.103	0.127	1363	5.212
7	6.664	0.118	1691	5.957
14	8.285	0.097	2780	8.149
21	9.576	0.085	3751	9.891

^a)

Molecular weight between crosslinks and mesh size were not calculated for the initial hydrogel (immediately after crosslinking) because the hydrogel had not been submerged in any solution at this time, and thus had not attained swelling equilibrium;

^b)

The polymer volume fraction at day 0 is used as V_2,r in the modified Flory-Rehner equation.