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. 2013 Jun;29(5):493–500. doi: 10.1089/jop.2012.0205

FIG. 2.

FIG. 2.

Fourier-Transform-Infrared (FTIR) spectra of empty and daunorubicin (DNR)-loaded porous silicon (pSi) microparticles. Conjugation of the drug molecule generates bands in the FTIR spectrum indicative of the formation of a linkage through amide bond (arrows).