Hg<sup>2+</sup> Optical Fiber Sensor Based on LSPR Generated by Gold Nanoparticles Embedded in LBL Nano-Assembled Coatings
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 nanopart...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-11-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/19/22/4906 |
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| author | María Elena Martínez-Hernández Javier Goicoechea Francisco J. Arregui |
| author_facet | María Elena Martínez-Hernández Javier Goicoechea Francisco J. Arregui |
| author_sort | María Elena Martínez-Hernández |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-04-11T22:31:30Z |
| format | Article |
| id | doaj.art-d60948462e2b4cacb815d7b48cc145f1 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T22:31:30Z |
| publishDate | 2019-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-d60948462e2b4cacb815d7b48cc145f12022-12-22T03:59:22ZengMDPI AGSensors1424-82202019-11-011922490610.3390/s19224906s19224906Hg<sup>2+</sup> Optical Fiber Sensor Based on LSPR Generated by Gold Nanoparticles Embedded in LBL Nano-Assembled CoatingsMaría Elena Martínez-Hernández0Javier Goicoechea1Francisco J. Arregui2Department of Electrical, Electronic and Communication Engineering, Universidad Publica de Navarra, Edif. Los Tejos, Campus Arrosadía, 31006 Pamplona, SpainDepartment of Electrical, Electronic and Communication Engineering, Universidad Publica de Navarra, Edif. Los Tejos, Campus Arrosadía, 31006 Pamplona, SpainDepartment of Electrical, Electronic and Communication Engineering, Universidad Publica de Navarra, Edif. Los Tejos, Campus Arrosadía, 31006 Pamplona, SpainMercury 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.https://www.mdpi.com/1424-8220/19/22/4906fiber optic sensorgold nanoparticleslocalized surface plasmon resonancemercuryppb |
| spellingShingle | María Elena Martínez-Hernández Javier Goicoechea Francisco J. Arregui Hg<sup>2+</sup> Optical Fiber Sensor Based on LSPR Generated by Gold Nanoparticles Embedded in LBL Nano-Assembled Coatings Sensors fiber optic sensor gold nanoparticles localized surface plasmon resonance mercury ppb |
| title | Hg<sup>2+</sup> Optical Fiber Sensor Based on LSPR Generated by Gold Nanoparticles Embedded in LBL Nano-Assembled Coatings |
| title_full | Hg<sup>2+</sup> Optical Fiber Sensor Based on LSPR Generated by Gold Nanoparticles Embedded in LBL Nano-Assembled Coatings |
| title_fullStr | Hg<sup>2+</sup> Optical Fiber Sensor Based on LSPR Generated by Gold Nanoparticles Embedded in LBL Nano-Assembled Coatings |
| title_full_unstemmed | Hg<sup>2+</sup> Optical Fiber Sensor Based on LSPR Generated by Gold Nanoparticles Embedded in LBL Nano-Assembled Coatings |
| title_short | Hg<sup>2+</sup> Optical Fiber Sensor Based on LSPR Generated by Gold Nanoparticles Embedded in LBL Nano-Assembled Coatings |
| title_sort | hg sup 2 sup optical fiber sensor based on lspr generated by gold nanoparticles embedded in lbl nano assembled coatings |
| topic | fiber optic sensor gold nanoparticles localized surface plasmon resonance mercury ppb |
| url | https://www.mdpi.com/1424-8220/19/22/4906 |
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