单层
分析物
纳米技术
水溶液中的金属离子
金属
离子
组合化学
分子
纳米颗粒
化学
胶体金
分子识别
材料科学
有机化学
物理化学
作者
Cristian Pezzato,Subhabrata Maiti,Jack L.‐Y. Chen,Alessandro Cazzolaro,Camilla Gobbo,Leonard J. Prins
摘要
In this review we describe the use of monolayer protected gold nanoparticles (Au NPs) for chemosensing applications. The attention is focused on a special subclass of Au NPs, namely those that contain binding sites for metal ions in the monolayer. It will be shown that these systems are very well-equipped for metal ion sensing as the complexation of the metal ions can affect the properties of the system in many ways leading to detectable output signals even at very low analyte concentrations. In addition, the presence of metal ions in the monolayer themselves can serve as recognition units for the highly selective interaction with small organic molecules or biomacromolecules. Key examples will be discussed that underscore the attractive properties and potential of this class of Au NPs as components of chemosensing assays.
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