Recent Development in Optical Fiber Biosensors

Bosch, M. Espinosa; Ruiz-Sánchez, Antonio J.; Rojas, F. Sánchez; Ojeda, C. Bosch

doi:10.3390/s7060797

Cited by 260 publications

(141 citation statements)

References 244 publications

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“…Basic principles and common geometries of tapered fiber-optic biosensors were reviewed by Leung et al (2007) and detailed account of their use for detection of biomolecules was presented. Bosch et al (2007) also presented an exhaustive review of fiber optic biosensors in terms of detection phenomena used viz. absorbance, reflectance and fluorescence measurement and details of applications of fiber optic biosensors.…”

Section: Classification Of Fiber Optic Biosensorsmentioning

confidence: 99%

Optical biosensors for food quality and safety assurance—a review

et al. 2011

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Food quality and safety is a scientific discipline describing handling, preparation and storage of food in ways that prevent food borne illness. Food serves as a growth medium for microorganisms that can be pathogenic or cause food spoilage. Therefore, it is imperative to have stringent laws and standards for the preparation, packaging and transportation of food. The conventional methods for detection of food contamination based on culturing, colony counting, chromatography and immunoassay are tedious and time consuming while biosensors have overcome some of these disadvantages. There is growing interest in biosensors due to high specificity, convenience and quick response. Optical biosensors show greater potential for the detection of pathogens, pesticide and drug residues, hygiene monitoring, heavy metals and other toxic substances in the food to check whether it is safe for consumption or not. This review focuses on optical biosensors, the recent developments in the associated instrumentation with emphasis on fiber optic and surface plasmon resonance (SPR) based biosensors for detecting a range of analytes in food samples, the major advantages and challenges associated with optical biosensors. It also briefly covers the different methods employed for the immobilization of bio-molecules used in developing biosensors.

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Section: Classification Of Fiber Optic Biosensorsmentioning

confidence: 99%

Optical biosensors for food quality and safety assurance—a review

et al. 2011

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“…(a) Top view of the optical fiber probe: photonic integrated circuit aligned to the core of the optical fiber. The circuit is designed so that light is coupled in and out via the same grating coupler [7] and it is also required to be compact in order to fit on the facet of a standard single-mode optical fiber. A focused grating coupler is used to circumvent the need for a space consuming waveguide taper [8].…”

Section: Introductionmentioning

confidence: 99%

“…However, many applications require a sensor probe that is flexible, portable, and can perform measurements at locations that are hard to reach [6][7].…”

Section: Introductionmentioning

confidence: 99%

Silicon-on-Insulator Microring Resonator Sensor Integrated on an Optical Fiber Facet

Arce

Vos

Claes

et al. 2011

IEEE Photon. Technol. Lett.

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Abstract--In recent years portable, sensitive and cheap sensors have gained interest in fields such as medical diagnostics, food quality control, environmental monitoring and drug development. Especially optical sensors in silicon-on-insulator have proven to be very promising, because they have a low limit of detection, are very compact and can be made with cheap mass fabrication techniques. While a lot of progress has been made to implement such sensors in small and easy to use cartridges, many applications require a sensor probe that can perform measurements at locations that are hard to reach. We introduce a method to integrate a silicon-on-insulator photonic sensor on the facet of a standard single-mode optical fiber, and apply this method to a well-known ring resonator refractive index sensor without deteriorating its sensitivity. We thus combined the good performance of silicon-on-insulator sensors with the high mobility of optical fibers.Index Terms-Optical fiber probe sensor, ring resonator, Silicon-On-Insulator (SOI).

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“…Further on, Phillips [57] demonstrated that ide− ally glassy materials have hydrogen−bonded networks. Bosch et al [58] in 2007 critically reviewed the last decade developments in optical fibres for bio sensing. In the same year Vassilev et al [59] introduced the new Se−based multi− component chalcogenide glasses and studied their composi− tion dependence on physical properties.…”

Section: Global Status Of Metal Containing Chalcogenide Glassesmentioning

confidence: 99%

Recent advancement in metal containing multicomponent chalcogenide glasses

Singh

2012

Opto-Electronics Review

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Amorphous semiconductors or chalcogenide glasses are the key materials in modern optoelectronics to make comfortable life of our society. Understanding of physical properties (like microstructure, thermal, optical, electrical) of these materials is important for their different uses. Predominant study of physical properties of the metal containing multicomponent chalcogenide glasses have attracted much attention, due to their interesting variable features and wide range of structural network modifications. Structural modifications in these materials are usually described with respect to the values of structural units (or average coordination number). In significance to this, the present work demonstrates the chronological development in the field of chalcogenide glasses along with scanning electron microscopy (SEM) morphologies. Optical, electrical and thermal correlative properties of recent developed Se93−xZn2Te5Inx (0 ≤ x ≤ 10) metallic multicomponent chalcogenide glasses are discussed. Variation in SEM morphology, refractive index (n), extinction coefficient (K), optical energy band gap (Eg), electrical conductivity (σav), crystallization activation energy (Ec) and glass forming ability (GFA) with structural units of Se-Zn-Te-In glasses have been demonstrated in this study. Subjected materials thermal, optical and electrical parameters have been achieved higher and lower in a respective manner at the threshold structural unit value 〈r〉.

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Recent Development in Optical Fiber Biosensors

Cited by 260 publications

References 244 publications

Optical biosensors for food quality and safety assurance—a review

Optical biosensors for food quality and safety assurance—a review

Silicon-on-Insulator Microring Resonator Sensor Integrated on an Optical Fiber Facet

Recent advancement in metal containing multicomponent chalcogenide glasses

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