Optical Fiber Biosensor toward E-coli Bacterial Detection on the Pollutant Water

Fallah, Hoorieh; Asadishad, Tannaz; Parsanasab, Gholam M.; Harun, Sulaiman Wadi; Mohammed, Waleed S.; Yasin, Moh.

doi:10.4186/ej.2021.25.12.1

Cited by 10 publications

(7 citation statements)

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“…In recent years, fiber optic immunosensors based on surface modifications with nanomaterials have shown significant improvements compared to conventional fiber optic sensors regarding detection speed and sensitivity. For example, a fiber optic biosensor modified with zinc oxide (ZnO) nanorods for the detection of E. coli in water with an LOD of 10 3 cfu/mL was developed [121].…”

Section: Fiber Optic Immunosensorsmentioning

confidence: 99%

Optical Immunosensors for Bacteria Detection in Food Matrices

et al. 2023

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Optical immunosensors are one of the most popular categories of immunosensors with applications in many fields including diagnostics and environmental and food analysis. The latter field is of particular interest not only for scientists but also for regulatory authorities and the public since food is essential for life but can also be the source of many health problems. In this context, the current review aims to provide an overview of the different types of optical immunosensors focusing on their application for the determination of pathogenic bacteria in food samples. The optical immunosensors discussed include sensors based on evanescent wave transduction principles including surface plasmon resonance (SPR), fiber-optic-, interferometric-, grating-coupler-, and ring-resonator-based sensors, as well as reflectometric, photoluminescence, and immunosensors based on surface-enhanced Raman scattering (SERS). Thus, after a short description of each transduction technique, its implementation for the immunochemical determination of bacteria is discussed. Finally, a short commentary about the future trends in optical immunosensors for food safety applications is provided.

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Section: Fiber Optic Immunosensorsmentioning

confidence: 99%

Optical Immunosensors for Bacteria Detection in Food Matrices

et al. 2023

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“…Using a hydrothermal growth process, ZnO nanorods were fabricated from zinc acetate and zinc nitrate on the Au layer [25]. Refractive index changes induced by E. coli strain adsorption on nanorods were detected with an SPR sensor.…”

Section: Fo Chemical Sensors With 1d Sensing Nanomaterialsmentioning

confidence: 99%

“…In addition to FOSPR sensors, different approaches for the development of FO chemical nanosensors and nanobiosensors have been investigated in the last thirty years. Such nanosensors are based on fiber-optic tips with apex diameters below 100 nm, nanomaterials such as quantum dots [17,[21][22][23], nanoparticles [16,17], nanotubes [17,24,25], nanorods [25], nanolayers [16,17], nanosheets [16,17,[26][27][28][29][30][31] etc., applied to fiber-optic cores. Due to nanometric dimensions in a range of 1-100 nm under the definition, nanomaterials exhibit unique physical and chemical characteristics [32].…”

Section: Introductionmentioning

confidence: 99%

Fiber-Optic Nanosensors for Chemical Detection

Matějec,

Kašík,

Bartoň

2023

Chemosensors

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Recently, rapid progress has been achieved in the field of nanomaterial preparation and investigation. Many nanomaterials have been employed in optical chemical sensors and biosensors. This review is focused on fiber-optic nanosensors for chemical sensing based on silica and plastic optical fibers. Four types of fiber-optic chemical nanosensors, namely fiber nanotip sensors, fiber nanoarray sensors, fiber-optic surface plasmon resonance sensors, and fiber-optic nanomaterial-based sensors, are discussed in the paper. The preparation, materials, and sensing characteristics of the selected fiber-optic nanosensors are employed to show the performance of such nanosensors for chemical sensing. Examples of fiber-optic nanobiosensors are also included in the paper to document the broad sensing performance of fiber-optic nanosensors. The employment of fiber-nanotips and nanoarrays for surface-enhanced Raman scattering and nanosensors employing both electrical and optical principles and “Lab-on-fiber” sensors are also included in the paper. The paper deals with fiber-optic nanosensors based on quantum dots, nanotubes, nanorods, and nanosheets of graphene materials, MoS2, and MXenes.

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“…Currently, nanorods are also widely used in the development of optical biosensors. Fallah et al reported a ZnO nanorod-based fiber optic biosensor for the rapid and sensitive detection of Escherichia coli ( E. coli) [ 59 ]. After applying a thin coating of AuNPs (about 50 nm) to the tip of the multi-mode plastic fiber, ZnO nanorods were grown on the Au layer.…”

Section: Application Of 1d Nanomaterials In the Field Of Optical Fibe...mentioning

confidence: 99%

“…Two-dimensional metal films and three-dimensional (3D) nanoarrays play an important role in enhancing the local electric field of optical fiber structures so they can be used in the development of SPR-based optical fiber biosensors. These sensing systems can detect a large number of molecules of clinical relevance, including glucose [ 56 , 57 ], bacteria [ 58 , 59 ], cancer cells [ 6 , 60 ], dopamine [ 61 , 62 , 63 ], deoxyribonucleic acid (DNA) [ 41 ], and so on. The applications of different types of nanomaterials based on different sensing principles are represented in Figure 1 .…”

Section: Introductionmentioning

confidence: 99%

Advances in Novel Nanomaterial-Based Optical Fiber Biosensors—A Review

Singh

Wang

et al. 2022

Biosensors

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This article presents a concise summary of current advancements in novel nanomaterial-based optical fiber biosensors. The beneficial optical and biological properties of nanomaterials, such as nanoparticle size-dependent signal amplification, plasmon resonance, and charge-transfer capabilities, are widely used in biosensing applications. Due to the biocompatibility and bioreceptor combination, the nanomaterials enhance the sensitivity, limit of detection, specificity, and response time of sensing probes, as well as the signal-to-noise ratio of fiber optic biosensing platforms. This has established a practical method for improving the performance of fiber optic biosensors. With the aforementioned outstanding nanomaterial properties, the development of fiber optic biosensors has been efficiently promoted. This paper reviews the application of numerous novel nanomaterials in the field of optical fiber biosensing and provides a brief explanation of the fiber sensing mechanism.

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Optical Fiber Biosensor toward E-coli Bacterial Detection on the Pollutant Water

Cited by 10 publications

References 0 publications

Optical Immunosensors for Bacteria Detection in Food Matrices

Optical Immunosensors for Bacteria Detection in Food Matrices

Fiber-Optic Nanosensors for Chemical Detection

Advances in Novel Nanomaterial-Based Optical Fiber Biosensors—A Review

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