Fig. 3: Scanning electron microscope characterization of chemical and physical gels.

HABP chemical gels (a) compared with HA-(BP)₃•Laponite physical gels (b) and chemical gels assembled through mixing of pyridyldithio-modified hyaluronan (HA-SSPy) with thiol-functionalized Laponite (Laponite•BP-SH) (c). Scale bar = 200 nm.