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Nanomaterials
Volume 10
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10.3390/nano10010049
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Article

Ultrasensitive SERS-Based Plasmonic Sensor with Analyte Enrichment System Produced by Direct Laser Writing

by
Georgii Pavliuk
1,2,
Dmitrii Pavlov
1,2,
Eugeny Mitsai
2,
Oleg Vitrik
1,2,
Aleksandr Mironenko
3,
Alexander Zakharenko
1,
Sergei A. Kulinich
1,4,
Saulius Juodkazis
5,6,
Svetlana Bratskaya
3,
Alexey Zhizhchenko
1,2 and
Aleksandr Kuchmizhak
1,2,*
1
Far Eastern Federal University, 690041 Vladivostok, Russia
2
Institute of Automation and Control Processes, Far Eastern Branch, Russian Academy of Sciences, 690091 Vladivostok, Russia
3
Institute of Chemistry, Far Eastern Branch, Russian Academy of Sciences, 690091 Vladivostok, Russia
4
Research Institute of Science and Technology, Tokai University, Hiratsuka, Kanagawa 259-1292, Japan
5
Nanotechnology Facility, Swinburne University of Technology, John st., Hawthorn, VIC 3122, Australia
6
World Research Hub Initiative (WRHI), School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1, Ookayama, Meguro-ku, Tokyo 152-8550, Japan
*
Author to whom correspondence should be addressed.
Nanomaterials 2020, 10(1), 49; https://doi.org/10.3390/nano10010049
Received: 2 December 2019 / Revised: 19 December 2019 / Accepted: 20 December 2019 / Published: 24 December 2019
(This article belongs to the Special Issue Laser Printing of Nanophotonic Structures)
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Abstract

We report an easy-to-implement device for surface-enhanced Raman scattering (SERS)-based detection of various analytes dissolved in water droplets at trace concentrations. The device combines an analyte-enrichment system and SERS-active sensor site, both produced via inexpensive and high-performance direct femtosecond (fs)-laser printing. Fabricated on a surface of water-repellent polytetrafluoroethylene substrate as an arrangement of micropillars, the analyte-enrichment system supports evaporating water droplet in the Cassie–Baxter superhydrophobic state, thus ensuring delivery of the dissolved analyte molecules towards the hydrophilic SERS-active site. The efficient pre-concentration of the analyte onto the sensor site based on densely arranged spiky plasmonic nanotextures results in its subsequent label-free identification by means of SERS spectroscopy. Using the proposed device, we demonstrate reliable SERS-based fingerprinting of various analytes, including common organic dyes and medical drugs at ppb concentrations. The proposed device is believed to find applications in various areas, including label-free environmental monitoring, medical diagnostics, and forensics. View Full-Text
Keywords: direct laser processing; femtosecond laser pulses; superhydrophobic textures; analyte enrichment; plasmonic nanostructures; SERS; medical drugs direct laser processing; femtosecond laser pulses; superhydrophobic textures; analyte enrichment; plasmonic nanostructures; SERS; medical drugs
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MDPI and ACS Style

Pavliuk, G.; Pavlov, D.; Mitsai, E.; Vitrik, O.; Mironenko, A.; Zakharenko, A.; Kulinich, S.A.; Juodkazis, S.; Bratskaya, S.; Zhizhchenko, A.; Kuchmizhak, A. Ultrasensitive SERS-Based Plasmonic Sensor with Analyte Enrichment System Produced by Direct Laser Writing. Nanomaterials 2020, 10, 49. https://doi.org/10.3390/nano10010049

AMA Style

Pavliuk G, Pavlov D, Mitsai E, Vitrik O, Mironenko A, Zakharenko A, Kulinich SA, Juodkazis S, Bratskaya S, Zhizhchenko A, Kuchmizhak A. Ultrasensitive SERS-Based Plasmonic Sensor with Analyte Enrichment System Produced by Direct Laser Writing. Nanomaterials. 2020; 10(1):49. https://doi.org/10.3390/nano10010049

Chicago/Turabian Style

Pavliuk, Georgii, Dmitrii Pavlov, Eugeny Mitsai, Oleg Vitrik, Aleksandr Mironenko, Alexander Zakharenko, Sergei A. Kulinich, Saulius Juodkazis, Svetlana Bratskaya, Alexey Zhizhchenko, and Aleksandr Kuchmizhak. 2020. "Ultrasensitive SERS-Based Plasmonic Sensor with Analyte Enrichment System Produced by Direct Laser Writing" Nanomaterials 10, no. 1: 49. https://doi.org/10.3390/nano10010049

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