DNA-Assisted assembly of plasmonic core-satellite nanostructures for surface-enhanced Raman spectroscopy (SERS)

Li An Wu, Wei En Li, Yih Fan Chen

研究成果: Conference contribution同行評審

摘要

DNA-Assisted assembly has been demonstrated as a powerful method for synthesizing plasmonic nanostructures possessing electromagnetic hot spots for surface-enhanced Raman spectroscopy (SERS). In this work, we use DNA molecules as linkers to synthesize core-satellite nanostructures for SERS molecular detection. The interparticle distance, which is critical to Raman enhancement, is fine-Tuned by growing a silver shell on the surfaces of the gold nanoparticles. To achieve high and reproducible SERS effects, we accumulate the core-satellite nanostructures to form uniform SERS substrates with hot spots not only on a 2D plane but also along the z-Axis. We successfully use the SERS substrate to detect 1 nM adenine and 500 nM melamine.

原文English
主出版物標題2017 IEEE 12th International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2017
發行者Institute of Electrical and Electronics Engineers Inc.
頁面206-209
頁數4
ISBN(電子)9781509030590
DOIs
出版狀態Published - 25 8月 2017
事件12th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2017 - Los Angeles, United States
持續時間: 9 4月 201712 4月 2017

出版系列

名字2017 IEEE 12th International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2017

Conference

Conference12th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2017
國家/地區United States
城市Los Angeles
期間9/04/1712/04/17

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