...
首页> 外文期刊>Journal of Microencapsulation: Microcapsules Liposomes Nanoparticles Microcells Microspheres >Adsorption of obidoxime onto human serum albumin nanoparticles: Drug loading, particle size and drug release
【24h】

Adsorption of obidoxime onto human serum albumin nanoparticles: Drug loading, particle size and drug release

机译:奥比多肟在人血清白蛋白纳米颗粒上的吸附:载药量,粒径和药物释放

获取原文
获取原文并翻译 | 示例
           

摘要

The standard treatment of poisoning by organophosphorous compounds such as paraoxon includes the administration of oximes. Due to their inability to rapidly cross the blood-brain barrier (BBB) in therapeutically relevant concentrations, these drugs possess insufficient activity in the central nervous system. Since human serum albumin (HSA) nanoparticles enable the delivery of a variety of drugs across the BBB into the brain, in the present study the antidote obidoxime was bound to these particles by adsorption. The resulting sorption isotherms showed a best fit to Langmuir isotherms indicating that obidoxime adsorbs to HSA nanoparticles forming a monolayer. A maximum drug loading of 93.5 μg obidoxime/mg of nanoparticles at pH 8.3 was calculated. At higher concentrations the particle diameter increased significantly with obidoxime concentration leading to instable particle systems. The in vitro release of obidoxime from HSA nanoparticles showed a rapid release of the drug from the nanoparticles within 3 h.
机译:有机磷化合物(如对氧磷)中毒的标准治疗方法包括肟的给药。由于它们无法以治疗上相关的浓度快速穿过血脑屏障(BBB),因此这些药物在中枢神经系统中的活性不足。由于人血清白蛋白(HSA)纳米颗粒能够将各种药物通过BBB输送到大脑,因此在本研究中,解毒剂Obidoxime通过吸附与这些颗粒结合。所产生的吸附等温线显示出最佳的Langmuir等温线拟合,表明obidoxime吸附到形成单层的HSA纳米颗粒上。计算出在pH 8.3下最大药物载量为93.5μgobidoxime / mg纳米颗粒。在更高的浓度下,随着obobxime浓度的增加,粒径显着增加,导致不稳定的粒子系统。从HSA纳米颗粒中体外释放obidoxime,显示药物在3小时内从纳米颗粒中快速释放。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号