Ephedra intermedia Schrenk & C. A. Mey Methanol Extract: Nanoencapsulation by Mini‐Emulsion Polymerization and its Release Trend under Simulated Conditions of the Human Body

Abstract

In this research, the extract of Ephedra intermedia Schrenk &C.A.Mey was encapsulated using the mini‐emulsion polymerization method based on methyl methacrylate polymers with a nanometer size. The encapsulated extract was characterized using different analytical techniques. Furthermore, the loading efficiency and release of the plant extract were examined. FT‐IT spectroscopy confirmed the formation of an expectational product. The TEM and SEM imaging showed a spherical morphology for the prepared encapsulated extract. The average size of poly‐methyl‐methacrylate nanoparticles containing Ephedra extract was found to be approximately 47 nm. The extract loading efficiency and encapsulation efficiency test demonstrated a dose‐depending behavior on E. intermedia extract for both analyses, which is highly advantageous for traversing biological barriers. The release assay shows a controlled release for the extract at phosphate buffer solution (PBS). A 38% release was calculated after 36 hours. The results obtained from the present study reveal that encapsulating the plant extract is a suitable alternative to control and increase their medicinal properties.