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Article

Surface Plasmon Enhanced Fluorescence Temperature Mapping of Aluminum Nanoparticle Heated by Laser

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Department of Electrical Engineering and Computer Science, University of Missouri, Columbia, MO 65211, USA
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J. Mike Walker Department of Mechanical Engineering, Texas A&M University, College Station, TX 77843, USA
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Department of Mechanical and Aerospace Engineering, University of Missouri, Columbia, MO 65211, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Rafik Naccache
Sensors 2021, 21(5), 1585; https://doi.org/10.3390/s21051585
Received: 14 January 2021 / Revised: 18 February 2021 / Accepted: 21 February 2021 / Published: 24 February 2021
(This article belongs to the Special Issue Luminescence Nanothermometry)
Partially aggregated Rhodamine 6G (R6G) dye is used as a lights-on temperature sensor to analyze the spatiotemporal heating of aluminum nanoparticles (Al NPs) embedded within a tetrafluoroethylene, hexafluoropropylene, and vinylidene fluoride (THV) fluoropolymer matrix. The embedded Al NPs were photothermally heated using an IR laser, and the fluorescent intensity of the embedded dye was monitored in real time using an optical microscope. A plasmonic grating substrate enhanced the florescence intensity of the dye while increasing the optical resolution and heating rate of Al NPs. The fluorescence intensity was converted to temperature maps via controlled calibration. The experimental temperature profiles were used to determine the Al NP heat generation rate. Partially aggregated R6G dyes, combined with the optical benefits of a plasmonic grating, offered robust temperature sensing with sub-micron spatial resolution and temperature resolution on the order of 0.2 °C. View Full-Text
Keywords: nanothermography; fluorescence; plasmonic; aluminum nanoparticle nanothermography; fluorescence; plasmonic; aluminum nanoparticle
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MDPI and ACS Style

Zakiyyan, N.; Darr, C.M.; Chen, B.; Mathai, C.; Gangopadhyay, K.; McFarland, J.; Gangopadhyay, S.; Maschmann, M.R. Surface Plasmon Enhanced Fluorescence Temperature Mapping of Aluminum Nanoparticle Heated by Laser. Sensors 2021, 21, 1585. https://doi.org/10.3390/s21051585

AMA Style

Zakiyyan N, Darr CM, Chen B, Mathai C, Gangopadhyay K, McFarland J, Gangopadhyay S, Maschmann MR. Surface Plasmon Enhanced Fluorescence Temperature Mapping of Aluminum Nanoparticle Heated by Laser. Sensors. 2021; 21(5):1585. https://doi.org/10.3390/s21051585

Chicago/Turabian Style

Zakiyyan, Naadaa, Charles M. Darr, Biyan Chen, Cherian Mathai, Keshab Gangopadhyay, Jacob McFarland, Shubhra Gangopadhyay, and Matthew R. Maschmann. 2021. "Surface Plasmon Enhanced Fluorescence Temperature Mapping of Aluminum Nanoparticle Heated by Laser" Sensors 21, no. 5: 1585. https://doi.org/10.3390/s21051585

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