Plasmonic nanopillar arrays encoded with multiplex molecular information for anti-counterfeiting applications
A major challenge in information security and the development of an anti-counterfeiting platform is to encode multiple identification features on a single platform where these features can be decoded with no interference. Here, we demonstrate a progressively complex anti-counterfeiting platform usin...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2020
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| Online Access: | https://hdl.handle.net/10356/143406 |
| _version_ | 1811683108522557440 |
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| author | Liu, Yejing Lee, Yih Hong Zhang, Qi Cui, Yan Ling, Xing Yi |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Liu, Yejing Lee, Yih Hong Zhang, Qi Cui, Yan Ling, Xing Yi |
| author_sort | Liu, Yejing |
| collection | NTU |
| description | A major challenge in information security and the development of an anti-counterfeiting platform is to encode multiple identification features on a single platform where these features can be decoded with no interference. Here, we demonstrate a progressively complex anti-counterfeiting platform using a multiplex fabrication strategy. This multiplex strategy enabled us to realize a spatially selective encapsulation of dye molecules within an Ag nanopillar array embedding covert molecular information which was revealed using fluorescence, surface-enhanced Raman scattering (SERS), and signal intensities. A total of five identification layers were used to authenticate products in our nanopillar platform. Moreover, two spectroscopic techniques were required to fully decode the various covert layers encoded within the same nanopillar array, thereby greatly enhancing the security of the information. Hyperspectral imaging was used to precisely generate unique SERS fingerprints of molecules encapsulated in each nanopillar. This feature combined with the high ∼17 000 pillars per inch (ppi) information density of the platform make its use extremely effective against counterfeiting and forgery. In summary, our encoding platform enables high security, large information density and low-error decoding. |
| first_indexed | 2024-10-01T04:07:30Z |
| format | Journal Article |
| id | ntu-10356/143406 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:07:30Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1434062023-02-28T19:39:25Z Plasmonic nanopillar arrays encoded with multiplex molecular information for anti-counterfeiting applications Liu, Yejing Lee, Yih Hong Zhang, Qi Cui, Yan Ling, Xing Yi School of Physical and Mathematical Sciences Science::Physics Plasmonic Surface-enhanced Raman Scattering A major challenge in information security and the development of an anti-counterfeiting platform is to encode multiple identification features on a single platform where these features can be decoded with no interference. Here, we demonstrate a progressively complex anti-counterfeiting platform using a multiplex fabrication strategy. This multiplex strategy enabled us to realize a spatially selective encapsulation of dye molecules within an Ag nanopillar array embedding covert molecular information which was revealed using fluorescence, surface-enhanced Raman scattering (SERS), and signal intensities. A total of five identification layers were used to authenticate products in our nanopillar platform. Moreover, two spectroscopic techniques were required to fully decode the various covert layers encoded within the same nanopillar array, thereby greatly enhancing the security of the information. Hyperspectral imaging was used to precisely generate unique SERS fingerprints of molecules encapsulated in each nanopillar. This feature combined with the high ∼17 000 pillars per inch (ppi) information density of the platform make its use extremely effective against counterfeiting and forgery. In summary, our encoding platform enables high security, large information density and low-error decoding. Nanyang Technological University National Research Foundation (NRF) Accepted version We gratefully thank Prof. Holger Schönherr, Mr Marc Steuber, and Dr Ping Li (Universität Siegen) for the fruitful discussion on the synthesis of methyl 2-(methyl(phenyl)amino)acetate. X. Y. L. and Y. H. L. are grateful for the support from the National Research Foundation, Singapore (NRF-NRFF2012-04), Nanyang Technological University’s start-up grant (M4080758). 2020-08-31T02:55:06Z 2020-08-31T02:55:06Z 2016 Journal Article Liu, Y., Lee, Y. H., Zhang, Q., Cui, Y., & Ling, X. Y. (2016). Plasmonic nanopillar arrays encoded with multiplex molecular information for anti-counterfeiting applications. Journal of Materials Chemistry C, 4(19), 4312-4319. doi:10.1039/c6tc00682e 2050-7526 https://hdl.handle.net/10356/143406 10.1039/C6TC00682E 19 4 4312 4319 en Journal of Materials Chemistry C © 2016 The Royal Society of Chemistry. All rights reserved. This paper was published in Journal of Materials Chemistry C and is made available with permission of The Royal Society of Chemistry. application/pdf |
| spellingShingle | Science::Physics Plasmonic Surface-enhanced Raman Scattering Liu, Yejing Lee, Yih Hong Zhang, Qi Cui, Yan Ling, Xing Yi Plasmonic nanopillar arrays encoded with multiplex molecular information for anti-counterfeiting applications |
| title | Plasmonic nanopillar arrays encoded with multiplex molecular information for anti-counterfeiting applications |
| title_full | Plasmonic nanopillar arrays encoded with multiplex molecular information for anti-counterfeiting applications |
| title_fullStr | Plasmonic nanopillar arrays encoded with multiplex molecular information for anti-counterfeiting applications |
| title_full_unstemmed | Plasmonic nanopillar arrays encoded with multiplex molecular information for anti-counterfeiting applications |
| title_short | Plasmonic nanopillar arrays encoded with multiplex molecular information for anti-counterfeiting applications |
| title_sort | plasmonic nanopillar arrays encoded with multiplex molecular information for anti counterfeiting applications |
| topic | Science::Physics Plasmonic Surface-enhanced Raman Scattering |
| url | https://hdl.handle.net/10356/143406 |
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