Fig. 3

FTIR analysis of the pure (DH, CHT, and PEG), physical mixtures (DH + CHT, DH + PEG, and DH + CHT + PEG), and drug-loaded xerogel samples (X7–X12).

FTIR analysis of the pure (DH, CHT, and PEG), physical mixtures (DH + CHT, DH + PEG, and DH + CHT + PEG), and drug-loaded xerogel samples (X7–X12).