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. Author manuscript; available in PMC: 2021 Jan 28.
Published in final edited form as: J Tissue Eng Regen Med. 2008 Jul;2(5):296–304. doi: 10.1002/term.95

Figure 2.

Figure 2.

DNA content as a measure of cell viability using the PicoGreen assay over the course of 2 weeks in culture. Percentage viability was determined as the DNA content at each time point was normalized to that of day 0. The graphs depict viability for cells entrapped in PEG gels with exposure to no peptide (●), 20 μg/ml fibronectin (■), short tethered RGD (◊), dually attached RGD (○), a scrambled RGD sequence (♦) and a tethered RGD with a spacer arm sequence (△). (A) Sequences that were covalently attached to the network; (B) peptide sequences that were delivered solubly. *p > 0.05; **p > 0.01