Figure 6.
Reversibility of BA fibers in water measured by rheology. (A) Monomer exchange between labeled (BA/BA-AC) and unlabeled (BA) fibers followed by gelation via covalent cross-linking-fixation with 5-N3. (B) Storage modulus G′ measured in oscillatory shear (γ = 1% and ω = 6.28 rad s–1) of cross-linked solutions of 16 mg mL–1 BA/BA-AC (20 mol % BA-AC) mixed with 16 mg mL–1 BA after different incubation times. Error bars represent the standard deviation of G′ at the conclusion of the cross-linking reaction for hydrogels prepared from the same stock solution.