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Nanoimprint lithography of Al nanovoids for deep-UV SERS.

Ding T, Sigle DO, Herrmann LO, Wolverson D, Baumberg JJ - ACS Appl Mater Interfaces (2014)

Bottom Line: Deep-ultraviolet surface-enhanced Raman scattering (UV-SERS) is a promising technique for bioimaging and detection because many biological molecules possess UV absorption lines leading to strongly resonant Raman scattering.Here, Al nanovoid substrates are developed by combining nanoimprint lithography of etched polymer/silica opal films with electron beam evaporation, to give a high-performance sensing platform for UV-SERS.Enhancement by more than 3 orders of magnitude in the UV-SERS performance was obtained from the DNA base adenine, matching well the UV plasmonic optical signatures and simulations, demonstrating its suitability for biodetection.

View Article: PubMed Central - PubMed

Affiliation: Nanophotonics Centre, Cavendish Laboratory, University of Cambridge , Cambridge CB3 0HE, United Kingdom.

ABSTRACT
Deep-ultraviolet surface-enhanced Raman scattering (UV-SERS) is a promising technique for bioimaging and detection because many biological molecules possess UV absorption lines leading to strongly resonant Raman scattering. Here, Al nanovoid substrates are developed by combining nanoimprint lithography of etched polymer/silica opal films with electron beam evaporation, to give a high-performance sensing platform for UV-SERS. Enhancement by more than 3 orders of magnitude in the UV-SERS performance was obtained from the DNA base adenine, matching well the UV plasmonic optical signatures and simulations, demonstrating its suitability for biodetection.

No MeSH data available.


Related in: MedlinePlus

Fabrication Procedure of Al NanovoidsThe preformed SiO2@PMMA@PEA opal films were ion-milled, followed by imprinting ontoPS films. Al was consequently evaporated on the surface to form Alnanovoids.
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sch1: Fabrication Procedure of Al NanovoidsThe preformed SiO2@PMMA@PEA opal films were ion-milled, followed by imprinting ontoPS films. Al was consequently evaporated on the surface to form Alnanovoids.


Nanoimprint lithography of Al nanovoids for deep-UV SERS.

Ding T, Sigle DO, Herrmann LO, Wolverson D, Baumberg JJ - ACS Appl Mater Interfaces (2014)

Fabrication Procedure of Al NanovoidsThe preformed SiO2@PMMA@PEA opal films were ion-milled, followed by imprinting ontoPS films. Al was consequently evaporated on the surface to form Alnanovoids.
© Copyright Policy
Related In: Results  -  Collection

License
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getmorefigures.php?uid=PMC4230348&req=5

sch1: Fabrication Procedure of Al NanovoidsThe preformed SiO2@PMMA@PEA opal films were ion-milled, followed by imprinting ontoPS films. Al was consequently evaporated on the surface to form Alnanovoids.
Bottom Line: Deep-ultraviolet surface-enhanced Raman scattering (UV-SERS) is a promising technique for bioimaging and detection because many biological molecules possess UV absorption lines leading to strongly resonant Raman scattering.Here, Al nanovoid substrates are developed by combining nanoimprint lithography of etched polymer/silica opal films with electron beam evaporation, to give a high-performance sensing platform for UV-SERS.Enhancement by more than 3 orders of magnitude in the UV-SERS performance was obtained from the DNA base adenine, matching well the UV plasmonic optical signatures and simulations, demonstrating its suitability for biodetection.

View Article: PubMed Central - PubMed

Affiliation: Nanophotonics Centre, Cavendish Laboratory, University of Cambridge , Cambridge CB3 0HE, United Kingdom.

ABSTRACT
Deep-ultraviolet surface-enhanced Raman scattering (UV-SERS) is a promising technique for bioimaging and detection because many biological molecules possess UV absorption lines leading to strongly resonant Raman scattering. Here, Al nanovoid substrates are developed by combining nanoimprint lithography of etched polymer/silica opal films with electron beam evaporation, to give a high-performance sensing platform for UV-SERS. Enhancement by more than 3 orders of magnitude in the UV-SERS performance was obtained from the DNA base adenine, matching well the UV plasmonic optical signatures and simulations, demonstrating its suitability for biodetection.

No MeSH data available.


Related in: MedlinePlus