申请人:Agency for Science, Technology and Research
公开号:US11534375B2
公开(公告)日:2022-12-27
Present disclosure relates to a solvent-free method of encapsulating a hydrophobic active in personal care, hydrophobic active in crop protection or a hydrophobic active pharmaceutical ingredient (API) in polymeric nanoparticles. The method includes mixing the hydrophobic active in a polymer melt, wherein the polymer melt comprises a melt of a block co-polymer, wherein the polymer melt acts as a solvent for the hydrophobic active. The method further includes maintaining the polymer melt in water for sufficient time to allow self-assembly of the block co-polymer to encapsulate the hydrophobic active therein.
本公开涉及一种将个人护理中的疏水性活性物质、作物保护中的疏水性活性物质或疏水性活性药物成分(API)封装在聚合物纳米颗粒中的无溶剂方法。该方法包括在聚合物熔体中混合疏水性活性物质,其中聚合物熔体包括嵌段共聚物熔体,聚合物熔体作为疏水性活性物质的溶剂。该方法还包括将聚合物熔体在水中保持足够的时间,以允许嵌段共聚物自组装,将疏水性活性物质封装在其中。