Reversible Self-Assembly of Glutathione-Coated Gold Nanoparticle Clusters via pH-Tunable Interactions
Reversible Self-Assembly of Glutathione-Coated Gold Nanoparticle Clusters via pH-Tunable Interactions
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DOI：
10.1021/acs.langmuir.7b02446
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发表时间：
2017-10-31
期刊：
影响因子：
3.9
通讯作者：
Truskett, Thomas M.
中科院分区：
文献类型：
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作者：
Moaseri, Ehsan;Bollinger, Jonathan A.;Truskett, Thomas M.
直径范围为20至100 nm的纳米颗粒（NP）簇在水溶液中作为pH值的函数在S.4至3.8的范围内可逆地组装自涂覆有谷胱甘肽（GSH）的5 nm金（Au）初级颗粒。当pH降低时，GSH表面配体变成部分两性离子并形成颗粒间氢键，其驱动亚稳簇的自限制组装，
Nanoparticle (NP) clusters with diameters ranging from 20 to 100 nm are reversibly assembled from 5 nm gold (Au) primary particles coated with glutathione (GSH) in aqueous solution as a function of pH in the range of S.4 to 3.8. As the pH is lowered, the GSH surface ligands become partially zwitterionic and form interparticle hydrogen bonds that drive the self-limited assembly of metastable clusters in