Figure 4.

Lap shear adhesion test results performed with the precursor solutions adjusted to various pH levels using pericardium equilibrated at pH 7.4 (A) and the precursor solution buffered at pH 7.4 while using pericardium equilibrated at various pH levels (B). PEG-D was cured with a NaIO₄/dopamine molar ratio of 0.5. The symbols * and ^# denote that results associated with these formulations were statistically different from those of other formulations based on ANOVA analysis. Black and gray bars indicate lap shear and work of adhesion results, respectively. For (B), 2 out of 9 samples failed prior to testing for tissue buffered at pH 5.7.