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Yuanhui Zheng, Thibaut Thai, Philipp Reineck, Ling Qiu, Yueming Guo and Udo Bach DNA-Directed Self-Assembly of Core-Satellite Plasmonic Nanostructures: A Highly Sensitive and Reproducible Near-IR SERS Sensor Advanced Functional Materials 23

Version of Record online: 22 OCT 2012 | DOI: 10.1002/adfm.201202073

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A dense array of core-satellite gold nanostructures is fabricated as a low-cost surface enhanced Raman spectroscopy (SERS) substrate through a combined electrostatic and DNA-directed self-assembly. These core-satellite nanostructures show strong and highly reproducible SERS activity, superior to those of a commercial Klarite SERS substrate, and an ability target analytes (e.g., benzenethiol), at concentrations down to 1 × 10−9M.

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