Phenolic-compounds sensor based on immobilization of tyrosinase in polyacrylamide gel on long-period fiber grating

Mishra, Satyendra K.; Chiang, Kin Seng

doi:10.1016/j.optlastec.2020.106464

Cited by 16 publications

(4 citation statements)

References 41 publications

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“…The light field in IDTC1 sensed the refractive index change and then the n clad eff was changed, leading to the resonant central wavelength λ drift. 46–50…”

Section: Resultsmentioning

confidence: 99%

“…The light field in IDTC1 sensed the refractive index change and then the n clad eff was changed, leading to the resonant central wavelength l drift. [46][47][48][49][50] To enhance the light-analyte interaction in IDTC1, the mode field in IDTC1 should be strong. The cladding mode with a higher order is preferred for strong light-analyte interaction, because the light field is distributed more to the interface of fiber cladding and IDTC1.…”

Section: Design and Simulation Of Lpfg Sensorsmentioning

confidence: 99%

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A vapochromic dye/graphene coated long-period fiber grating for benzene vapor sensing

Dong

Zhao

et al. 2022

Mater. Chem. Front.

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“…The light field in IDTC1 sensed the refractive index change and then the n clad eff was changed, leading to the resonant central wavelength λ drift. 46–50…”

Section: Resultsmentioning

confidence: 99%

Section: Design and Simulation Of Lpfg Sensorsmentioning

confidence: 99%

A vapochromic dye/graphene coated long-period fiber grating for benzene vapor sensing

Dong

Zhao

et al. 2022

Mater. Chem. Front.

Self Cite

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“…A high-quality film can be achieved using sputtering and e-beam evaporation. The probe can be characterized by injecting light through one of the fiber faces and analyzing its sensing performance using a spectrometer at the other end of the fiber [ 26 , 27 , 28 , 29 , 30 ].…”

Section: The Modelmentioning

confidence: 99%

An Interplay between Lossy Mode Resonance and Surface Plasmon Resonance and Their Sensing Applications

2022

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Conducting metal oxide (CMO) supports lossy mode resonance (LMR) at the CMO-dielectric interface, whereas surface plasmon resonance (SPR) occurs at the typical plasmonic metal-dielectric interface. The present study investigates these resonances in the bi-layer (ITO + Ag) and tri-layer (ITO + Ag + ITO) geometries in the Kretschmann configuration of excitation. It has been found that depending upon the layer thicknesses one resonance dominates the other. In particular, in the tri-layer configuration of ITO + Ag + ITO, the effect of the thickness variation of the sandwiched Ag layer is explored and a resonance, insensitive to the change in the sensing medium refractive index (RI), has been reported. Further, the two kinds of RI sensing probes and the supported resonances have been characterized and compared in terms of sensitivity, detection accuracy and figure of merit. These studies will not only be helpful in gaining a better understanding of underlying physics but may also lead to the realization of biochemical sensing devices with a wider spectral range.

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“…The most common enzymes used in biosensing belong to the oxidoreductase, hydrolase and lyase groups. In the case of antioxidant analysis, proteases such as tyrosinase [ 83 ], peroxidase [ 84 ] and laccase [ 85 ] have been utilized in the evolution of electrochemical biosensors. In this regard, antioxidant activity can be measured via biochemical oxidation subsequently by electrochemical reduction.…”

Section: Electrochemical Sensors and Biosensorsmentioning

confidence: 99%

An Overview of Optical and Electrochemical Sensors and Biosensors for Analysis of Antioxidants in Food during the Last 5 Years

Nejadmansouri

Majdinasab

Nunes

et al. 2021

Sensors

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Antioxidants are a group of healthy substances which are useful to human health because of their antihistaminic, anticancer, anti-inflammatory activity and inhibitory effect on the formation and the actions of reactive oxygen species. Generally, they are phenolic complexes present in plant-derived foods. Due to the valuable nutritional role of these mixtures, analysis and determining their amount in food is of particular importance. In recent years, many attempts have been made to supply uncomplicated, rapid, economical and user-friendly analytical approaches for the on-site detection and antioxidant capacity (AOC) determination of food antioxidants. In this regards, sensors and biosensors are regarded as favorable tools for antioxidant analysis because of their special features like high sensitivity, rapid detection time, ease of use, and ease of miniaturization. In this review, current five-year progresses in different types of optical and electrochemical sensors/biosensors for the analysis of antioxidants in foods are discussed and evaluated well. Moreover, advantages, limitations, and the potential for practical applications of each type of sensors/biosensors have been discussed. This review aims to prove how sensors/biosensors represent reliable alternatives to conventional methods for antioxidant analysis.

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Phenolic-compounds sensor based on immobilization of tyrosinase in polyacrylamide gel on long-period fiber grating

Cited by 16 publications

References 41 publications

A vapochromic dye/graphene coated long-period fiber grating for benzene vapor sensing

A vapochromic dye/graphene coated long-period fiber grating for benzene vapor sensing

An Interplay between Lossy Mode Resonance and Surface Plasmon Resonance and Their Sensing Applications

An Overview of Optical and Electrochemical Sensors and Biosensors for Analysis of Antioxidants in Food during the Last 5 Years

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