Optical Fiber-Based Heavy Metal Detection Using the Localized Surface Plasmon Resonance Technique

Dhara, Papiya; Kumar, Rahul; Binetti, Leonardo; Nguyen, Hien Thu; Alwis, Lourdes S. M.; Sun, Tao; Grattan, K. T. V.

doi:10.1109/jsen.2019.2921701

Cited by 40 publications

(11 citation statements)

References 19 publications

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“…The Au NPs size, the 1, 1-Mercaptoundecanoic acid (MUA) drying temperature and the MUA concentration of each part were carefully controlled. The repeatability of the probe depends on the cleaning of heavy metal ions by the ethylenedinitrilotetraacetic acid (EDTA) on the surface of the contaminated probe [ 88 ]. A fiber-optic Pb 2+ sensor was proposed and its hand-held system was designed to demodulate the wavelength position information using an FBG [ 89 ].…”

Section: Fiber-lspr Chemical Sensorsmentioning

confidence: 99%

Preparation and Application of Metal Nanoparticals Elaborated Fiber Sensors

Haoru

et al. 2020

Sensors

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In recent years, surface plasmon resonance devices (SPR, or named plamonics) have attracted much more attention because of their great prospects in breaking through the optical diffraction limit and developing new photons and sensing devices. At the same time, the combination of SPR and optical fiber promotes the development of the compact micro-probes with high-performance and the integration of fiber and planar waveguide. Different from the long-range SPR of planar metal nano-films, the local-SPR (LSPR) effect can be excited by incident light on the surface of nano-scaled metal particles, resulting in local enhanced light field, i.e., optical hot spot. Metal nano-particles-modified optical fiber LSPR sensor has high sensitivity and compact structure, which can realize the real-time monitoring of physical parameters, environmental parameters (temperature, humidity), and biochemical molecules (pH value, gas-liquid concentration, protein molecules, viruses). In this paper, both fabrication and application of the metal nano-particles modified optical fiber LSPR sensor probe are reviewed, and its future development is predicted.

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Section: Fiber-lspr Chemical Sensorsmentioning

confidence: 99%

Preparation and Application of Metal Nanoparticals Elaborated Fiber Sensors

Haoru

et al. 2020

Sensors

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“…When the sensor probe was removed from the Hg 2+ solution, some Hg 2+ ions were immobilized by the use of the CS/PAA film, and hence the refractive index changed due to the Hg 2+ contact. The spectral measurement in the air instead of the solution has been proven to be effective [14]. Moreover, this method can maximally exclude the influence of solution salinity and PH because the sensor probe has been dried completely before measuring the LSPR spectrum.…”

Section: Hg 2+ Detectionmentioning

confidence: 99%

“…Optical fiber sensing technology has attracted extensive attention and great research enthusiasm in the field of metal ion monitoring due to its unique advances such as low cost, light weight, ease of use, small in size, multiplexing, remote sensing, and high sensitivity [4][5][6][7]. Up to now, optical fiber heavy metal ion sensors have been reported by utilizing fluorescence [8], surface-enhanced Raman scattering [9], surface plasmon resonance [10][11][12], and localized surface plasmon resonance (LSPR) [13][14][15][16][17]. LSPR is usually excited near the surface of the metal nanoparticles to enhance the local electromagnetic fields, and the basic principle of heavy metal ion detection based on LPSR is highly responsive to changes in the refractive index around metal nanoparticles [18,19].…”

Section: Introductionmentioning

confidence: 99%

Hg2+ Optical Fiber Sensor Based on LSPR with PDDA-Templated AuNPs and CS/PAA Bilayers

Zhong

Yin

et al. 2020

Applied Sciences

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An optical fiber localized surface plasmon resonance (LSPR) sensor was proposed and experimentally demonstrated to detect Hg2+ ions by functionalizing the optical fiber surface with gold nanoparticles (AuNPs) and chitosan (CS)/poly acrylic acid (PAA) bilayers. A flame-brushing technology was proposed to post-process the polydimethyl diallyl ammonium chloride(PDDA)-templated nanoparticles, avoiding the aggregation of AuNPs and achieving well-dispersed AuNPs arrays. LSPR stimulated by the AuNPs is sensitive to changes in the refractive index induced by Hg2+ ions absorption on the CS/PAA bilayers. Experimental results demonstrated that the LSPR peak wavelength linearly shifts with the concentrations of Hg2+ ions from 1 to 30 μM with a sensitivity of around 0.51 nm/ppm. The sensor also exhibits good specificity and longtime stability.

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“…In 1992, Jorgenson et al, proposed that an optical fiber can be used as a carrier to realize the surface plasmon resonance (SPR) phenomenon based on Kretschmann configuration [1,2]. Based on this idea, various optical fiber SPR sensors are being fabricated and used widely in the investigation of RI measurement, biomolecular interaction analysis, health care, food safety, environmental monitoring, and homeland security [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

A Highly Sensitive SPR Refractive Index Sensor Based on Microfluidic Channel Assisted With Graphene-Ag Composite Nanowire

et al. 2021

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A highly sensitive refractive index (RI) sensor based on a microfluidic channel (MFC) incorporated in a single-mode fiber (SMF), filled with Ag-graphene composite nanowire is presented and analyzed here. The sensing performance and the coupling properties of designed sensor are numerically analyzed by using a full vectorial finite element method (FEM) incorporating amplitude and wavelength interrogation techniques in the detection range varied from = 1.330-1.350. The maximum wavelength and amplitude sensitivity are obtained of 13700 nm/RIU and 1026 RIU -1 , respectively. Here, the Ag-graphene composite nanowire can not only solve the problem of oxidation but also enhances the sensitivity of the sensor. In addition of high sensitivity, it also provides better performance than other sensing devices based on similar technologies such as Ag nanowire-filled sensors. Moreover, the influences of polishing depth (D), nanowire radius (rn), graphene layer (Lg) and channel size (s) on the designed sensor, are also thoroughly investigated here. The present work can provide a base for designing a real-time, highly sensitivity, remote sensing, and distributed SPR based RI sensor.

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Optical Fiber-Based Heavy Metal Detection Using the Localized Surface Plasmon Resonance Technique

Cited by 40 publications

References 19 publications

Preparation and Application of Metal Nanoparticals Elaborated Fiber Sensors

Preparation and Application of Metal Nanoparticals Elaborated Fiber Sensors

Hg2+ Optical Fiber Sensor Based on LSPR with PDDA-Templated AuNPs and CS/PAA Bilayers

A Highly Sensitive SPR Refractive Index Sensor Based on Microfluidic Channel Assisted With Graphene-Ag Composite Nanowire

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