Electrochemically created highly surface roughened Ag nanoplate arrays for SERS biosensing applications

Shikuan Yang; Daniel Slotcavage; John D. Mai; Feng Guo; Sixing Li; Yanhui Zhao; Yong Lei; Craig E. Cameron; Tony Jun Huang

doi:10.1039/c4tc01276c

Electrochemically created highly surface roughened Ag nanoplate arrays for SERS biosensing applications

Shikuan Yang
, Daniel Slotcavage
, John D. Mai
, Feng Guo
, Sixing Li
, Yanhui Zhao
, Yong Lei
, Craig E. Cameron
, Tony Jun Huang

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

53 Citations (Scopus)

Abstract

Highly surface-roughened Ag nanoplate arrays are fabricated using a simple electrodeposition and in situ electrocorrosion method with inorganic borate ions as capping agent. The electrocorrosion process is induced by a change in the local pH value during the electrochemical growth, which is used to intentionally carve the electrodeposited structures. The three dimensionally arranged Ag nanoplates are integrated with substantial surface-enhanced Raman scattering (SERS) hot spots and are free of organic contaminations widely used as shaping agents in previous works, making them excellent candidate substrates for SERS biosensing applications. The SERS enhancement factor of the rough Ag nanoplates is estimated to be >10⁹. These Ag nanoplate arrays are used for SERS-based analysis of DNA hybridization monitoring, protein detection, and virus differentiation without any additional surface modifications or labelling. They all exhibit an extremely high detection sensitivity, reliability, and reproducibility. This journal is © the Partner Organisations 2014.

Original language	English
Pages (from-to)	8350-8356
Journal	Journal of Materials Chemistry C
Volume	2
Issue number	39
DOIs	https://doi.org/10.1039/c4tc01276c
Publication status	Published - 21 Oct 2014

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Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Funding

We gratefully acknowledge the financial support from the National Institutes of Health (Director's New Innovator Award, 1DP2OD007209-01), the National Science Foundation (NSF), the Penn State Center for Nanoscale Science (MRSEC) under grant DMR-0820404, and Huck Innovative & Transformational Seed (HITS) Fund.

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title = "Electrochemically created highly surface roughened Ag nanoplate arrays for SERS biosensing applications",

abstract = "Highly surface-roughened Ag nanoplate arrays are fabricated using a simple electrodeposition and in situ electrocorrosion method with inorganic borate ions as capping agent. The electrocorrosion process is induced by a change in the local pH value during the electrochemical growth, which is used to intentionally carve the electrodeposited structures. The three dimensionally arranged Ag nanoplates are integrated with substantial surface-enhanced Raman scattering (SERS) hot spots and are free of organic contaminations widely used as shaping agents in previous works, making them excellent candidate substrates for SERS biosensing applications. The SERS enhancement factor of the rough Ag nanoplates is estimated to be >109. These Ag nanoplate arrays are used for SERS-based analysis of DNA hybridization monitoring, protein detection, and virus differentiation without any additional surface modifications or labelling. They all exhibit an extremely high detection sensitivity, reliability, and reproducibility. This journal is {\textcopyright} the Partner Organisations 2014.",

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T1 - Electrochemically created highly surface roughened Ag nanoplate arrays for SERS biosensing applications

AU - Yang, Shikuan

AU - Slotcavage, Daniel

AU - Mai, John D.

AU - Guo, Feng

AU - Li, Sixing

AU - Zhao, Yanhui

AU - Lei, Yong

AU - Cameron, Craig E.

AU - Huang, Tony Jun

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

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N2 - Highly surface-roughened Ag nanoplate arrays are fabricated using a simple electrodeposition and in situ electrocorrosion method with inorganic borate ions as capping agent. The electrocorrosion process is induced by a change in the local pH value during the electrochemical growth, which is used to intentionally carve the electrodeposited structures. The three dimensionally arranged Ag nanoplates are integrated with substantial surface-enhanced Raman scattering (SERS) hot spots and are free of organic contaminations widely used as shaping agents in previous works, making them excellent candidate substrates for SERS biosensing applications. The SERS enhancement factor of the rough Ag nanoplates is estimated to be >109. These Ag nanoplate arrays are used for SERS-based analysis of DNA hybridization monitoring, protein detection, and virus differentiation without any additional surface modifications or labelling. They all exhibit an extremely high detection sensitivity, reliability, and reproducibility. This journal is © the Partner Organisations 2014.

AB - Highly surface-roughened Ag nanoplate arrays are fabricated using a simple electrodeposition and in situ electrocorrosion method with inorganic borate ions as capping agent. The electrocorrosion process is induced by a change in the local pH value during the electrochemical growth, which is used to intentionally carve the electrodeposited structures. The three dimensionally arranged Ag nanoplates are integrated with substantial surface-enhanced Raman scattering (SERS) hot spots and are free of organic contaminations widely used as shaping agents in previous works, making them excellent candidate substrates for SERS biosensing applications. The SERS enhancement factor of the rough Ag nanoplates is estimated to be >109. These Ag nanoplate arrays are used for SERS-based analysis of DNA hybridization monitoring, protein detection, and virus differentiation without any additional surface modifications or labelling. They all exhibit an extremely high detection sensitivity, reliability, and reproducibility. This journal is © the Partner Organisations 2014.

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DO - 10.1039/c4tc01276c

M3 - RGC 21 - Publication in refereed journal

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JO - Journal of Materials Chemistry C

JF - Journal of Materials Chemistry C

IS - 39

ER -

Electrochemically created highly surface roughened Ag nanoplate arrays for SERS biosensing applications

Abstract

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