Research Article

In Situ Swelling Behavior of Chitosan-Polygalacturonic Acid/Hydroxyapatite Nanocomposites in Cell Culture Media

Figure 2

FTIR spectra of dry chitosan (a), dry PgA (b), dry Chi-PgA-HAP nanocomposites (c) and soaked Chi-PgA-HAP nanocomposite film samples over 1, 2, 8, 24 and 48-day (d–h), respectively in the regions 1200–900 cm-1.
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