Figure 15.

(a). Negative control sample shows loss of elastic fibers as less density of black color. Stain is Verhoeff method for elastic fibers, magnification is 400×, and the scale bar is 20 µm. (b). Standard samples show an improved status of elastic fibers as increased density of black color. Stain is Verhoeff method for elastic fibers, magnification is 400×, and the scale bar is 20 µm. (c). Test tissue samples treated with AgNPs loaded chitosan-based gels show an improved status of elastic fibers as increased density of black color. Stain is Verhoeff method for elastic fibers, magnification is 400×, and the scale bar is 20 µm.