Figure 4From: Anti-inflammatory effects of novel curcumin analogs in experimental acute lung injury UV-visible absorption spectra of curcumin, a17, a18, c9, and c26 in phosphate buffer (pH 7.4), containing 5% DMSO. The compounds stability was described by the curve which is consisted of absorbance at various optical density (250–600 nm) and intervals (0, 5, 10, 15, 20, 25 min). (A) curcumin; (B) a17; (C) a18; (D) c9; (E) c26.Back to article page