. Author manuscript; available in PMC: 2015 Aug 1.

Published in final edited form as: Acta Biomater. 2014 Apr 19;10(8):3431–3441. doi: 10.1016/j.actbio.2014.04.012

Table 1. Summary of Experimental Kinetic Time Constants.

Summary of kinetic time constants for in vitro hydrogel degradation, in vitro GFP⁺ mMSC localization, and in vivo GFP⁺ mMSC localization

PEG Macromer Composition	In Vitro Modulus k′ (days⁻¹)	In Vitro MSC Localization k′ (days⁻¹)	In Vivo MSC Localization k′ (days⁻¹)
PEGDM	0.02 ± 0.01 ^#, ^$, ^@	0.02 ± 0.01 ^#, ^$, ^@	-
PEGPLA₁DM	0.10 ± 0.01 ^*, ^$, ^@	0.11 ± 0.02 ^*, ^$, ^@	-
PEGPLA₃DM	0.15 ± 0.01 ^*, ^#, ^@	0.17 ± 0.01 ^*, ^#, ^@	0.18 ± 0.02 ^@
PEGPLA₄DM	0.24 ± 0.03 ^*, ^#, ^$	0.28 ± 0.02 ^*, ^#, ^$	0.29 ± 0.03 ^$,^@

n=5–10; average ± standard deviation;

p<0.05 vs. PEGDM,

p<0.05 vs. PEGPLA₁DM,

p<0.05 vs. PEGPLA₃DM,

p<0.05 vs. PEGPLA₄DM.