Paper Info
Title
Hg 2+ Optical Fiber Sensor Based on LSPR Generated by Gold Nanoparticles Embedded in LBL Nano-Assembled Coatings.
Abstract
Mercury is an important contaminant since it is accumulated in the body of living beings, and very small concentrations are very dangerous in the long term. This paper reports the fabrication of a highly sensitive fiber optic sensor using the layer-by-layer nano-assembly technique with gold nanoparticles (AuNPs). The gold nanoparticles were obtained via a water-based synthesis route that use poly acrylic acid (PAA) as stabilizing agent, in the presence of a borane dimethylamine complex (DMAB) as reducing agent, giving PAA-capped AuNPs. The sensing mechanism is based on the alteration of the Localized Surface Plasmon Resonances (LSPR) generated by AuNPs thanks to the strong chemical affinity of metallic mercury towards gold, which lead to amalgam alloys.
Year
DOI
Venue
2019
10.3390/s19224906
SENSORS
Keywords
DocType
Volume
fiber optic sensor,gold nanoparticles,localized surface plasmon resonance,mercury,ppb
Journal
19
Issue
ISSN
Citations 
22
1424-8220
0
PageRank 
References 
Authors
0.34
0
3
Name
Order
Citations
PageRank
María Elena Martínez-Hernández100.34
Javier Goicoechea2174.79
Francisco J. Arregui32610.32