Figure 2. NMR characterization of synthesized hydrogel precursors.
A) 1H NMR spectra of HA and HA-SH. B) 1H NMR spectra of P123, P123-succinic acid, and P123-maleimide.
A) 1H NMR spectra of HA and HA-SH. B) 1H NMR spectra of P123, P123-succinic acid, and P123-maleimide.