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. Author manuscript; available in PMC: 2014 Aug 18.
Published in final edited form as: Acta Biomater. 2014 Feb;10(2):831–842. doi: 10.1016/j.actbio.2013.10.020

Fig. 2.

Fig. 2

Characterization of nCCM: (A) 1H NMR spectrum showing successful encapsulation of curcumin in Pluronic F127–chitosan nanoparticles to obtain nCCM; (B) FTIR spectra of fCCM, NP, a simple mixture of NP and fCCM (NP + fCCM) and nCCM, showing characteristic peaks due to the aliphatic and aromatic double bonds in curcumin; (C) XRD data showing no clear curcumin peak for nCCM obtained under different feeding ratios of curcumin to nanoparticles, indicating the amorphous state of nCCM in nanoparticles; and (D) DLS data of diameter and surface zeta potential of nCCM obtained with feeding ratios of 1:60 and 1:20.