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

Author(s): Badilescu S, Raju D, Bathini S, Packirisamy M

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 s...

Article GUID: 33066088
Nano-Bio Interactions of Extracellular Vesicles with Gold Nanoislands for Early Cancer Diagnosis.

Author(s): Bathini S, Raju D, Badilescu S, Kumar A, Ouellette RJ, Ghosh A, Packirisamy M

Res (Wash D C). 2018;2018:3917986 Authors: Bathini S, Raju D, Badilescu S, Kumar A, Ouellette RJ, Ghosh A, Packirisamy M

Article GUID: 31549028
Title:Gold Nano-Island Platforms for Localized Surface Plasmon Resonance Sensing: A Short Review.
Authors:Badilescu S,  Raju D,  Bathini S,  Packirisamy M
Link:https://www.ncbi.nlm.nih.gov/pubmed/33066088
DOI:10.3390/molecules25204661
Category:Molecules
PMID:33066088
Dept Affiliation: ENCS
1 Micro-Nano-Bio Integration Center, Optical-Bio Microsystems Laboratory, Department of Mechanical and Industrial Engineering, Concordia University, Montreal, QC H3G 1M8, Canada.

Description:

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

Molecules. 2020 Oct 13; 25(20):

Authors: Badilescu S, Raju D, Bathini S, Packirisamy M

Abstract

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.

PMID: 33066088 [PubMed - as supplied by publisher]