A novel periodically tapered structure-based gold nanoparticles and graphene oxide – Immobilized optical fiber sensor to detect ascorbic acid

2020 ◽  
Vol 127 ◽  
pp. 106156 ◽  
Author(s):  
Guo Zhu ◽  
Niteshkumar Agrawal ◽  
Ragini Singh ◽  
Santosh Kumar ◽  
Bingyuan Zhang ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Ascorbic Acid ◽  
Graphene Oxide ◽  
Optical Fiber ◽  
Optical Fiber Sensor ◽  
Fiber Sensor

An Optical Fiber Sensor for Hg2+ Detection Based on the LSPR of Silver and Gold Nanoparticles Embedded in a Polymeric Matrix as an Effective Sensing Material

2021 ◽  
Vol 5 (1) ◽  
pp. 73
Author(s):  
María Elena Martínez-Hernández ◽  
Xabier Sandua ◽  
Pedro J. Rivero ◽  
Javier Goicoechea ◽  
Francisco J. Arregui
Keyword(s):  
Gold Nanoparticles ◽  
Optical Fiber ◽  
Localized Surface Plasmon Resonance ◽  
Spectral Response ◽  
Optical Fiber Sensor ◽  
Fiber Sensor ◽  
Localized Surface Plasmon ◽  
Layer By Layer ◽  
Sensing Material ◽  
Reliable Monitoring

In this work, an optical fiber sensor based on the localized surface plasmon resonance (LSPR) phenomenon is presented as a powerful tool for the detection of heavy metals (Hg2+). The resultant sensing film was fabricated using a nanofabrication process, known as layer-by-layer embedding (LbL-E) deposition technique. In this sense, both silver nanoparticles (AgNPs) and gold nanoparticles (AuNPs) were synthesized using a synthetic chemical protocol as a function of a strict control of three main parameters: polyelectrolyte concentration, loading agent, and reducing agent. The use of metallic nanostructures as sensing materials is of great interest because well-located absorption peaks associated with their LSPR are obtained at 420 nm (AgNPs) and 530 nm (AuNPs). Both plasmonic peaks provide a stable real-time reference that can be extracted from the spectral response of the optical fiber sensor, giving a reliable monitoring of the Hg2+ concentration.

scholarly journals Dengue E protein detection using graphene oxide integrated tapered optical fiber sensor

2018 ◽  
pp. 1-1 ◽  
Author(s):  
Yasmin Mustapha Kamil ◽  
Muhammad Hafiz Abu Bakar ◽  
Amir Syahir Amir Hamzah ◽  
Mohd Hanif Yaacob ◽  
Lim Hong Ngee ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Optical Fiber ◽  
Optical Fiber Sensor ◽  
Protein Detection ◽  
Fiber Sensor ◽  
E Protein ◽  
Tapered Optical Fiber

Absorbance response of a graphene oxide coated U-bent optical fiber sensor for aqueous ethanol detection

RSC Advances ◽  
2016 ◽  
Vol 6 (19) ◽  
pp. 15808-15815 ◽  
Author(s):  
S. S. Gao ◽  
H. W. Qiu ◽  
C. Zhang ◽  
S. Z. Jiang ◽  
Z. Li ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Optical Fiber ◽  
Aqueous Ethanol ◽  
Dynamic Change ◽  
Optical Fiber Sensor ◽  
Fiber Sensor

In this work, the dynamic change of the absorbance for aqueous ethanol detection based on a graphene oxide coated U-bent optical fiber sensor was investigated.

Simultaneous Measurement of Humidity and Temperature with Cytop-reduced Graphene Oxide-overlaid Two-mode Optical Fiber Sensor

2019 ◽  
Vol 298 ◽  
pp. 126841 ◽  
Author(s):  
Anh Duy Duong Le ◽  
Juil Hwang ◽  
Mohammad Yusuf ◽  
Kang Hyun Park ◽  
Sungkyun Park ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Optical Fiber ◽  
Reduced Graphene Oxide ◽  
Simultaneous Measurement ◽  
Optical Fiber Sensor ◽  
Fiber Sensor ◽  
Reduced Graphene

Theoretical research of the medical U-type optical fiber sensor covered by the gold nanoparticles

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Ying-Jie Luo ◽  
Shao-Yi Wu ◽  
Qin-Sheng Zhu ◽  
Xiao-Yu Li ◽  
Yong-Xin Li ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Optical Fiber ◽  
Optical Fiber Sensor ◽  
Geometrical Optics ◽  
Theoretical Research ◽  
Noble Metal Nanoparticles ◽  
Fiber Sensor ◽  
Localized Surface Plasmon ◽  
Fiber Sensors ◽  
Crystal Fibers

Abstract Previous studies of the gold-nanoparticles-covered U-type medical optical fiber sensor with millimeter size were mainly confined to the experimental aspect, while the corresponding theoretical studies were only for bare fibers based on geometrical optics or those for micron level photonic crystal fibers based on wave optics. Combining wave and geometrical optics, the gold-nanoparticles-covered U-type optical fiber sensor was simulated with millimeter size. The localized surface plasmon resonance absorption peak near 540 nm is obtained in the simulation, very close to that (≈560 nm) of the experimental value for the gold nanoparticles of 37 nm size. Compared with the refractive index (RI) sensitivity (≈7.10/RIU) for the plain, U-type optical fiber (≈43.50/RIU) exhibits more than 610% enhancement in the gold-nanoparticles-covered sample. Present studies would be helpful to the further simulation and design for various noble metal nanoparticles covered optical fiber sensors with different shapes.

Optical fiber sensor based on porous graphene (PG) and graphene oxide (GO)

2021 ◽  
Author(s):  
Yan Li ◽  
Wenduan Yan ◽  
Yangjiang Yangjiang ◽  
Yanmei Che ◽  
Xinya Lei
Keyword(s):  
Graphene Oxide ◽  
Optical Fiber ◽  
Optical Fiber Sensor ◽  
Fiber Sensor ◽  
Porous Graphene
Sign in / Sign up

Export Citation Format

Share Document