申请人:Children's Medical Center Corporation
公开号:US10350320B2
公开(公告)日:2019-07-16
Nanoparticles as described herein are configured to bind to bacterial contaminants, such as Gram positive bacteria, Gram negative bacteria, and endotoxins. The nanoparticles include a core comprising a magnetic material; and a plurality of ligands attached to the core. The ligands include, for example, bis(dipicolylamine) (“DPA”) coordinated with a metal ion, e.g., Zn2+ or Cu2+, to form, e.g., bis-Zn-DPA or bis-Cu-DPA, which can bind to the bacterial contaminants. The nanoparticles can be included in compositions for use in methods and systems to separate bacterial contaminants from liquids, such as liquids, such as blood, e.g., whole or diluted blood, buffer solutions, albumin solutions, beverages for human and/or animal consumption, e.g., drinking water, liquid medications for humans and/or animals, or other liquids.
本文所述的纳米颗粒可与细菌污染物(如革兰氏阳性菌、革兰氏阴性菌和内毒素)结合。纳米颗粒包括由磁性材料组成的磁芯;以及附着在磁芯上的多个
配体。例如,
配体包括与
金属离子(如 Zn2+ 或 Cu2+)配位的双(二羟基胺)("DPA"),形成双 Zn-DPA 或双 Cu-DPA,可与细菌污染物结合。纳米颗粒可包含在组合物中,用于从液体中分离细菌污染物的方法和系统,例如液体,如血液,如全血或稀释血液、缓冲溶液、白蛋白溶液、供人类和/或动物饮用的饮料,如饮用
水、供人类和/或动物使用的液体药物或其他液体。