. Author manuscript; available in PMC: 2013 Oct 28.

Published in final edited form as: Pharm Res. 2009 Jun 25;26(9):10.1007/s11095-009-9923-1. doi: 10.1007/s11095-009-9923-1

Table V. Diffusion Exponents, n, for Drug Release in PBS at 37°C From sIPNs and PEG-only Hydrogels.

Solute	Type of loading	1^a	2^a	3^a	4^a	5^a	6^a
AgSD	Single	0.537	0.531	0.561	0.598	0.448	0.644
AgSD	Concurrent	0.379	0.445	0.440	0.449	0.440	0.434
Bup	Single	0.124	0.166	0.200	0.189	0.208	0.113
Bup	Concurrent	0.118	0.150	0.160	0.162	0.191	0.125
NaSD	Single	0.139	0.165	0.178	-	-	0.081
KGF	Single	0.193	0.313	0.044	0.102	0.242	0.18
BSA-FITC	Single	0.524	0.555	0.622	0.605	0.545	0.483

sIPN of gelatin/PEGdA w/w: 1, 10:15; 2, 10:20; 3, 10:30; 4, 15:15; 5, 20:15. 6, PEG-only hydrogel of 15% w/v PEGdA.