Advances in Plasmonic Sensing at the NIR-A Review

• Type: Another Publication in an International Scientific Journal
• Date: 2021

Authors

Dos Santos, PSS (Author) Other; de Almeida, JMMM (Author) FCUP; Pastoriza Santos, I (Author) Other; Coelho, LCC (Author) FCUP

Journal

Title: Sensors

Vol. 21 No. 2

Pages: 1-48

ISSN: 1424-3210

Publisher: MDPI

Indexing

ISI Web of Knowledge - 18 Citations

Scopus - 22 Citations

Other information

Authenticus ID: P-00T-MS6

DOI: 10.3390/s21062111

Abstract (EN): Surface plasmon resonance (SPR) and localized surface plasmon resonance (LSPR) are among the most common and powerful label-free refractive index-based biosensing techniques available nowadays. Focusing on LSPR sensors, their performance is highly dependent on the size, shape, and nature of the nanomaterial employed. Indeed, the tailoring of those parameters allows the development of LSPR sensors with a tunable wavelength range between the ultra-violet (UV) and near infra-red (NIR). Furthermore, dealing with LSPR along optical fiber technology, with their low attenuation coefficients at NIR, allow for the possibility to create ultra-sensitive and long-range sensing networks to be deployed in a variety of both biological and chemical sensors. This work provides a detailed review of the key science underpinning such systems as well as recent progress in the development of several LSPR-based biosensors in the NIR wavelengths, including an overview of the LSPR phenomena along recent developments in the field of nanomaterials and nanostructure development towards NIR sensing. The review ends with a consideration of key advances in terms of nanostructure characteristics for LSPR sensing and prospects for future research and advances in this field.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 48