Optical Fiber Sensors for Chemical and Biological Measurements

Pérez, María José Sanzo; González, Olaya; Arias, José Ramiro Varela

doi:10.5772/52741

Cited by 8 publications

(2 citation statements)

References 43 publications

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“…In addition, chemical and biochemical sensors are also available. Many biochemical fiber sensors are tapered-based, and they are used to detect labeled target analytes, such as glucose, phospholipase, and many others for human health monitoring [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Fiber Optic Based Distributed Mechanical Vibration Sensing

Novotný

Sysel

Prokeš

et al. 2021

Sensors

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The distributed long-range sensing system, using the standard telecommunication single-mode optical fiber for the distributed sensing of mechanical vibrations, is described. Various events generating vibrations, such as a walking or running person, moving car, train, and many other vibration sources, can be detected, localized, and classified. The sensor is based on phase-sensitive optical time-domain reflectometry (ϕ-OTDR). Related sensing system components were designed and constructed, and the system was tested both in the laboratory and in the real deployment, with an 88 km telecom optical link, and the results are presented in this paper. A two-fiber sensor unit, with a double-sensing range was also designed, and its scheme is described. The unit was constructed and the initial measurement results are presented.

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Section: Introductionmentioning

confidence: 99%

Fiber Optic Based Distributed Mechanical Vibration Sensing

Novotný

Sysel

Prokeš

et al. 2021

Sensors

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“…OD is defined as the logarithmic ratio of the intensity of transmitted light to the intensity of the incident light. 3 The measurement is based on the amount of light scattered by the suspended cells where a linear correlation between the concentration of the suspended cells and the intensity of light transmitted along a known path length can be obtained via the applicability of the Beer-Lambert's law. [4][5][6] The only disadvantage is that dead microbial cells and cell debris also scatter the light.…”

Section: Introductionmentioning

confidence: 99%

A portable sensor for cell optical density measurement in microfluidic chips

Alam

Kumar

Whyte

et al. 2018

Measurement and Control

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This paper presents the development of a smartphone-controlled wireless device for cell optical density sensing in microfluidic chips. The footprint of the device is very compact relative to a classical laboratory spectrophotometer, making it a portable device. The cell optical density sensing device consists of an embedded microcontroller, optical sensing components, and a wireless transceiver performing cell optical density measurements in disposable microfluidic chips fabricated from poly(methylmethacrylate) polymers. The device is controlled by an Android application allowing for true portability and the possibility of remote or field operation of the device. The use of microfluidic chips as the sample carrier for optical density detection instead of a plastic cuvette allows users the flexibility to explore and/or conduct a variety of micro-scale chemical analysis using the device which would be difficult in a cuvette-based system. The function of the device is validated through a series of off-line and online optical density measurements using Saccharomyces cerevisae yeast cultures. The device is low cost, small enough to fit in most laboratory flow hood cabinets, and can be easily integrated into miniature bioreactor systems. Moreover, wireless communication enables the user to operate the device using smartphones or rapidly transfer the measured data to an online repository for analysis or storage.

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Modeling of a novel SCHOTT B270 prism based SPR sensor using Ag-Si-BP/MXene structure for detection of specific biological samples

Vasimalla

Pradhan

2022

Opt Quant Electron

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Optical Fiber Sensors for Chemical and Biological Measurements

Cited by 8 publications

References 43 publications

Fiber Optic Based Distributed Mechanical Vibration Sensing

Fiber Optic Based Distributed Mechanical Vibration Sensing

A portable sensor for cell optical density measurement in microfluidic chips

Modeling of a novel SCHOTT B270 prism based SPR sensor using Ag-Si-BP/MXene structure for detection of specific biological samples

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