In Situ Swelling Behavior of Chitosan-Polygalacturonic Acid/Hydroxyapatite Nanocomposites in Cell Culture Media
Figure 4
AFM topography image indicating the distribution of bundles of Chi-PgA fibers in the Chi-PgA-HAP nanocomposite; HAP nanoparticles are barely discernible in AFM topography image of dry sample. (a) Topographic variations and HAP nanoparticles are more commonly observed in AFM topography image of sample after 8 days of soaking. (b) ~80% of scan area appears to be covered with HAP nanoparticles in the AFM topographic image obtained on 48-day soaked sample (c).
