“…Currently, advances in nanotechnology have made it possible to improve the solubility, bioavailability, and absorbency of medicinal herbs as well as couple these advances with using a reduced dose and a sustained steady-state of therapeutic level of drugs over an extended period compared with the traditional methods [8][9][10][11] . Among the numerous nano-suspensions, the colloidal delivery system of polymeric nanoparticles has attracted much attention as a result of its unique properties, such as high biocompatibility, non-toxic nature, long-term stability, good physiological features, and acceptable control release [12,13] . The polymeric nanoparticles with smaller particle sizes (approximately 200 nm) could also increase drug accumulation in tumor cells via enhanced permeability and retention (EPR) effects [14][15][16] .…”