Fig. 3From: Evaluation of cytotoxicity and mechanism of apoptosis of doxorubicin using folate-decorated chitosan nanoparticles for targeted delivery to retinoblastomaa Nanoparticle characterization by FTIR. Figure depicts FTIR spectra of (i) folic acid, (ii) doxorubicin, and (iii) DOX-CNPs-FA. b In vitro DOX release profiles from CNPs. Data represent mean ± S.D., n = 3Back to article page