title: Preparation of All-Trans Retinoic Acid nanosuspensions using a modified precipitation method.
abstract: All-Trans Retinoic Acid (ATRA) nanosuspensions were prepared with a modified precipitation method. The ATRA solution in acetone was injected into pure water by an air compressor under the action of ultrasonication. Photon correlation spectroscopy results showed that the mean particle size of ATRA nanoparticles in nanosuspensions reduced from 337 nm to 155 nm as the injection velocity increased and the polydispersity index was 0.45-0.50. The morphology of ATRA nanoparticles varied with the different concentration of ATRA solution in acetone. ATRA nanoparticles showed an amorphous state and stable in 6 months. It could be concluded that this modified precipitation method could produce stable and controllable ATRA nanosuspension to a certain extent, thus benefit for higher saturation solubility.
authors.affiliation: State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory of Biomaterials and Devices, Southeast University, Nanjing, China.
authors.forename: X
authors.initials: X
authors.lastname: Zhang
authors.forename: Q
authors.initials: Q
authors.lastname: Xia
authors.forename: N
authors.initials: N
authors.lastname: Gu
mesh_terms: D000096:Acetone / Q000737:chemistry; D002152:Calorimetry, Differential Scanning; D011232:Chemical Precipitation; D003460:Crystallization; D004339:Drug Compounding / Q000379:methods; D004355:Drug Stability; D008854:Microscopy, Electron; D053758:Nanoparticles; D010316:Particle Size; D013535:Suspensions; D014212:Tretinoin / Q000737:chemistry*; D014961:X-Ray Diffraction
chemical_list: D013535:Suspensions; D000096:Acetone; D014212:Tretinoin