
Design and Application of Chiral Plasmonic Core-Shell Nanostructures
Wenliang Liu, Yuqi Wang, Xiaohan Li, Xuanyu Zhang, Jiqian Wang
Prog Chem ›› 2023, Vol. 35 ›› Issue (8) : 1168-1176.
Design and Application of Chiral Plasmonic Core-Shell Nanostructures
Chirality describes the geometrical feature of an object that cannot overlap with its mirror image and has been a crucial concept in chemistry and biology since the 19th century. With the development of nanotechnology, chiral plasmonic nanomaterials are becoming the research focuses for scientists to develop chiral functional materials due to the special chiral optical properties and good biocompatibility. However, the relatively weak chiral signals limit their applications. Chiral plasmonic core-shell nanostructures combine the chiral plasmonic properties and core-shell structures, which is an effective strategy to amplify chiral signals. In addition, the core-shell nanostructure integrates the properties of both internal and external materials to complement each other, which can further improve the physicochemical properties and enhance the performance in various fields. This paper summarizes the design strategies of chiral plasmonic core-shell nanostructures based on the spatial distribution of chiral molecules, and reviews their applications in the fields of ultrasensitive sensing and chiral catalysis. We analyze the existing problems and their possible solutions, and make an outlook on their future development.
1 Introduction
2 Design strategies for chiral plasmonic core-shell nanostructures
2.1 Chiral molecules distributed on the shell
2.2 Chiral molecules distributed on the core
2.3 Chiral molecules distributed in the core-shell gap
3 Application of chiral plasmonic core-shell nanostructures
3.1 Ultra-sensitive sensing
3.2 Chiral catalysis
4 Conclusion and outlook
chiral plasmonic nanostructures / core-shell structure / chiral catalysis / ultra-sensitive sensing
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