Non-invasive transdermal delivery route using electrostatically interactive biocompatible nanocapsules

A robust means of fabricating skin-penetrating and compatible nanocarriers comprising poly(D, L-lactide-co-glycolide) is reported. The resultant nanocapsules have the ability to load biologically active ingredients and selectively release them through the epidermis lipid layer. Their release of genistein (left figure) is determined to be diffusion-controlled, and they are shown to successfully deliver molecules, such as nile red (right figure), into biopsied skin samples.