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Direct Synthesis of Prussian Blue Nanoparticles in Liposomes Incorporating Natural Ion Channels for Cs+ Adsorption and Particle Size Control
Langmuir ( IF 3.9 ) Pub Date : 2018-01-11 00:00:00 , DOI: 10.1021/acs.langmuir.7b03926
Tomomi Koshiyama 1 , Motoki Tanaka 1 , Masayuki Honjo 1 , Yumi Fukunaga 1 , Tomoya Okamura 1 , Masaaki Ohba 1
Affiliation  

Coordination polymer (CP) nanoparticles (NPs) formed by a self-assembly of organic ligands and metal ions are one of the attractive materials for molecular capture and deliver/release in aqueous media. Control of particle size and prevention of aggregation among CP NPs are important factors for improving their adsorption capability in water. We demonstrate here the potential of a liposome incorporating an antibiotic ion channel as a vessel for synthesizing Prussian blue (PB) NPs, being a typical CP. In the formation of PB NPs within liposomes, the influx rate of Fe2+ ions into liposome encapsulated [Fe(CN)6]3– through channels was fundamental for the change of NPs’ sizes. The optimized PB NP–liposome composite showed higher adsorption capacity of Cs+ ions than that of aggregated PB NPs that are prepared without liposome in aqueous media.

中文翻译:

含天然离子通道的脂质体中直接合成普鲁士蓝纳米粒子用于Cs +吸附和粒径控制

通过有机配体和金属离子的自组装形成的配位聚合物(CP)纳米粒子(NPs)是用于分子捕获和在水介质中释放/释放的有吸引力的材料之一。控制粒径和防止CP NP之间的聚集是提高其在水中的吸附能力的重要因素。我们在这里证明了掺入抗生素离子通道作为合成普鲁士蓝(PB)NPs的容器的脂质体的潜力,这是一种典型的CP。在脂质体内形成PB NPs时,Fe 2+离子通过通道进入包裹[Fe(CN)6 ] 3–的脂质体的流入速率是改变NPs大小的基础。优化的PB NP-脂质体复合材料对Cs的吸附能力更高+离子比在水性介质中不含脂质体而制备的聚集PB NP离子高。
更新日期:2018-01-11
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