Preparation of nasal ethosome spray of geniposide and its nasal mucosa permeability in vitro Preparation of isoandrographolide solid lipid nanoparticles and their in vitro release Preparation and stability of sub-micro-emulsion of which the emulsifier is digalactosyl diglyceride from natural product Preparation and stability of digalactosyl diglyceride as emulsifier forsub-microemulsion Optimization on formulation of sinomenine hydrochloride pulsatile drug delivery tablets by central composite design-response surface method Preparation of glycyrrhetinic acid niosomes and optimization of its prescription process Preparation of sinomenine hydrochloride delayed-onset sustained-release tablets Response surface method for optimization of asiatic acid nanoparticles modified with PEG and its enhancing effects on intestinal absorption Optimization on preparation of Saussureae Involucratar Herba extract-composite phospholipid liposome by central composite design-response surface method Preparation of isoandrographolide solid lipid nanoparticles and their in vitro release Optimization and evaluation of naringenin loaded nanostructured lipid carriers Optimization on formulation of microporosity osmotic pump controlled release tablet of solid dispersion for total flavonoids from Desmodium styracifolium by central composite design-response surface methodology