Surface plasmon resonance based fiber optic sensor for the detection of triacylglycerides using gel entrapment technique

Baliyan, Anjli; Bhatia, Priya; Gupta, Banshi D.; Sharma, Enakshi K.; Kumari, Anjana; Gupta, Rani

doi:10.1016/j.snb.2013.07.090

Cited by 28 publications

(14 citation statements)

References 23 publications

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“…As an example, in Fig. 13.13, the response of an optical fiber SPR sensor to variations in the concentration of triacyglycerides [124]. It can be clearly appreciated in this graph that a shift in the resonance wavelength is produced when the concentration of the target varies.…”

Section: Metallic Nano Thin Filmsmentioning

confidence: 98%

“…13.13 Comparison of the wavelength shift as a function of triacyglycerides concentration at different-pH mediums. Reprinted from [124] with permission from Elsevier advances have allowed obtaining optical fiber sensors based on localized surface plasmon resonances (LSPR) from metallic-nanoparticles thin films [9,107]. This kind of sensors is acquiring particular relevance in the field of optical fiber sensing and biosensing [120,122,[125][126][127][128][129].…”

Section: Metallic Nano Thin Filmsmentioning

confidence: 99%

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Fiber Optic Sensors Based on Nanostructured Materials

Elosúa

Hernáez

Matı́as

et al. 2014

Springer Series in Surface Sciences

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Fiber optic sensors have been developed taking advantage on the synergy between the properties of nanostructured materials and the ones that characterize an optical fiber. The mechanical properties of optical fiber introduce some restrictions to the techniques used for the deposition of materials. As an alternative to the classical deposition procedures, wet coating techniques have been successfully applied in these cases. The current chapter put emphasis on materials that can be incorporated using wet coating techniques. The first one presented is the multilayer based nanostructures: among the different alternatives, we have focused on materials prepared with the Layer-by-Layer technique. Another type of products used for the fabrication of optical fiber sensors is sol-gel matrices, which are made of silica, so that its optical properties are similar to the ones of an optical fiber. The other two described type of products have focused the attention of many researchers in the recent years. Firstly, materials with an enhanced selectivity are presented: the molecularly imprinted polymers (MIPs). Finally, sensors based on metallic nanolayers and particles are presented. All these materials and techniques have acquired a great importance in the field of optical fiber sensors due to their versatility and the good features that offer.

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Section: Metallic Nano Thin Filmsmentioning

confidence: 98%

Section: Metallic Nano Thin Filmsmentioning

confidence: 99%

Fiber Optic Sensors Based on Nanostructured Materials

Elosúa

Hernáez

Matı́as

et al. 2014

Springer Series in Surface Sciences

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“…66 The formation of Fe (III)/DFO complex changes the resonance wavelength. The SPR-based fiber optic sensors were also developed for the detection of low-density lipoprotein, 67 pH, 68,69 low glucose concentration, 70 phenolic compounds, 71 urea, 72 chromium, 73 triacylglycerides, 74 and heavy metal ions. 75 Most of these sensors utilize enzymatic reactions and use gel entrapment technique for the immobilization of enzyme over metal coated fiber probe.…”

Section: Fiber Optic Spr Sensor Developmentsmentioning

confidence: 99%

Introduction

2015

Fiber Optic Sensors Based on Plasmonics

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“…Various methods are available for triacylglycerides detection like porous silica-based potentiometric pH-dependant triacylglyceride biosensor, 2 potentiometric and micromechanical triacylglyceride biosensor, 3 pH-based sensor, 4 amperometric sensors based on multienzymes, [5][6][7][8] SPR-based sensor, 9 etc. For these reported triacylglyceride biosensors, leaching of enzyme is an associated problem and also often a sophisticated fabrication process makes the sensor fabrication tedious.…”

Section: Introductionmentioning

confidence: 99%

Localized surface plasmon resonance–based fiber-optic sensor for the detection of triacylglycerides using silver nanoparticles

et al. 2017

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A label-free technique for the detection of triacylglycerides by a localized surface plasmon resonance (LSPR)-based biosensor is demonstrated. An LSPR-based fiber-optic sensor probe is fabricated by immobilizing lipase enzyme on silver nanoparticles (Ag-NPs) coated on an unclad segment of a plastic clad optical fiber. The size and shape of nanoparticles were characterized by high-resolution transmission electron microscopy and UV-visible spectroscopy. The peak absorbance wavelength changes with concentration of triacylglycerides surrounding the sensor probe, and sensitivity is estimated from shift in the peak absorbance wavelength as a function of concentration. The fabricated sensor was characterized for the concentration of triacylglyceride solution in the range 0 to 7 mM. The sensor shows the best sensitivity at a temperature of 37°C and pH 7.4 of the triacylglycerides emulsion with a response time of 40 s. A sensitivity of 28.5 nm/mM of triacylglyceride solution is obtained with a limit of detection of 0.016 mM in the entire range of triacylglycerides. This compact biosensor shows good selectivity, stability, and reproducibility in the entire physiological range of triacylglycerides and is well-suited to real-time online monitoring and remote sensing.

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Surface plasmon resonance based fiber optic sensor for the detection of triacylglycerides using gel entrapment technique

Cited by 28 publications

References 23 publications

Fiber Optic Sensors Based on Nanostructured Materials

Fiber Optic Sensors Based on Nanostructured Materials

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Localized surface plasmon resonance–based fiber-optic sensor for the detection of triacylglycerides using silver nanoparticles

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