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Studies on the biodistribution of dextrin nanoparticles

机译:糊精纳米颗粒的生物分布研究

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The characterization of biodistribution is a central requirement in the development of biomedical applications based on the use of nanoparticles, in particular for controlled drug delivery. The blood circulation time, organ biodistribution and rate of excretion must be well characterized in the process of product development. In this work, the biodistribution of recently developed self-assembled dextrin nanoparticles is addressed. Functionalization of the dextrin nanoparticles with a DOTA-monoamide-type metal chelator, via click chemistry, is described. The metal chelator functionalized nanoparticles were labelled with a γ-emitting ~(153)Sm~(3 +) radioisotope and the blood clearance rate and organ biodistribution of the nanoparticles were obtained. The effect of PEG surface coating on the blood clearance rate and organ biodistribution of the nanoparticles was also studied.
机译:生物分布的表征是基于纳米颗粒的使用,特别是用于受控药物输送的生物医学应用开发中的核心要求。在产品开发过程中,必须很好地表征血液循环时间,器官生物分布和排泄速率。在这项工作中,解决了最近开发的自组装糊精纳米颗粒的生物分布。描述了通过点击化学用DOTA-单酰胺型金属螯合剂对糊精纳米颗粒的功能化。将金属螯合剂官能化的纳米粒子标记为发射γ的〜(153)Sm〜(3 +)放射性同位素,获得纳米粒子的血液清除率和器官生物分布。还研究了PEG表面涂层对纳米颗粒的血液清除率和器官生物分布的影响。

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