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Review

Gold Nano-Island Platforms for Localized Surface Plasmon Resonance Sensing: A Short Review

Micro-Nano-Bio Integration Center, Optical-Bio Microsystems Laboratory, Department of Mechanical and Industrial Engineering, Concordia University, Montreal, QC H3G 1M8, Canada
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Author to whom correspondence should be addressed.
Academic Editors: Lucian Baia, Klara Magyari and Jin Won (Maria) Seo
Molecules 2020, 25(20), 4661; https://doi.org/10.3390/molecules25204661
Received: 12 September 2020 / Revised: 3 October 2020 / Accepted: 10 October 2020 / Published: 13 October 2020
(This article belongs to the Special Issue Research on Nanostructured Materials)
Nano-islands are entities (droplets or other shapes) that are formed by spontaneous dewetting (agglomeration, in the early literature) of thin and very thin metallic (especially gold) films on a substrate, done by post-deposition heating or by using other sources of energy. In addition to thermally generated nano-islands, more recently, nanoparticle films have also been dewetted, in order to form nano-islands. The localized surface plasmon resonance (LSPR) band of gold nano-islands was found to be sensitive to changes in the surrounding environment, making it a suitable platform for sensing and biosensing applications. In this review, we revisit the development of the concept of nano-island(s), the thermodynamics of dewetting of thin metal films, and the effect of the substrate on the morphology and optical properties of nano-islands. A special emphasis is made on nanoparticle films and their applications to biosensing, with ample examples from the authors’ work. View Full-Text
Keywords: dewetting; nano-islands; gold; sensing dewetting; nano-islands; gold; sensing
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MDPI and ACS Style

Badilescu, S.; Raju, D.; Bathini, S.; Packirisamy, M. Gold Nano-Island Platforms for Localized Surface Plasmon Resonance Sensing: A Short Review. Molecules 2020, 25, 4661. https://doi.org/10.3390/molecules25204661

AMA Style

Badilescu S, Raju D, Bathini S, Packirisamy M. Gold Nano-Island Platforms for Localized Surface Plasmon Resonance Sensing: A Short Review. Molecules. 2020; 25(20):4661. https://doi.org/10.3390/molecules25204661

Chicago/Turabian Style

Badilescu, Simona, Duraichelvan Raju, Srinivas Bathini, and Muthukumaran Packirisamy. 2020. "Gold Nano-Island Platforms for Localized Surface Plasmon Resonance Sensing: A Short Review" Molecules 25, no. 20: 4661. https://doi.org/10.3390/molecules25204661

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