Fabrication of surface enhanced raman scattering (SERS)-active substrates by using dip-pen nanolithography

Fei-Peng Lee, K. Chao, K. H. Hsieh, Keng-Liang Ou

研究成果: 書貢獻/報告類型會議貢獻

1 引文 斯高帕斯(Scopus)

摘要

In this study, we propose an effective strategy to prepare a stable surface enhanced Raman scattering (SERS)-active substrate by using dip-pen nanolithography (DPN) with top-down wet chemical etching. This method was made by DPN to pattern arrays, 16- mercaplohexadecaoic acid (MHA) on Au/Cr/Si substrates and then ferri/ferrocyanide etching was adopted to remove the exposed gold. It is found that a nanostructure with φ 300 nm gold dots and the distance between dot and dot is 400 nm can be obtained on the surface of substrates after etching. These nanostructure gold dots can enhance local electromagnetic fields, inducing enhancement of analytes' Raman signal. This process supplies the effective and stable SERS-active substrate which can be used as biomedical applications, such as protein chip, and microorganisms' discrimination chip.
原文英語
主出版物標題ECS Transactions
頁面301-305
頁數5
50
版本12
DOIs
出版狀態已發佈 - 2012
事件Symposia on Chemical Sensors 10 - Chemical and Biological Sensors and Analytical Systems and Microfabricated and Nanofabricated Systems for MEMS/NEMS 10 - 222nd ECS Meeting/PRiME 2012 - Honolulu, HI, 美国
持續時間: 十月 7 2012十月 12 2012

其他

其他Symposia on Chemical Sensors 10 - Chemical and Biological Sensors and Analytical Systems and Microfabricated and Nanofabricated Systems for MEMS/NEMS 10 - 222nd ECS Meeting/PRiME 2012
國家美国
城市Honolulu, HI
期間10/7/1210/12/12

ASJC Scopus subject areas

  • Engineering(all)

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