DNA functionalized gold nanorods/nanoplates assembly as sensitive LSPR-based sensor for label-free detection of mercury ions

- Bottom-up fabrication of anisotropic micro-nanostructure can be performed via DNA motifs.
- Core-satellite assembly of gold nanorods and nanoplates was obtained by ss-DNA-Hg2+-ss-DNA.
- A simple sensitive label-free detection for mercury ions was achieved through LSPR shifts of gold nanoplates in the assembly.