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U-Bent Fiber Optic Plasmonic Sensors: Fundamentals, Applications, Challenges, and Future Directions

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Recent Advances in Plasmonic Probes

Part of the book series: Lecture Notes in Nanoscale Science and Technology ((LNNST,volume 33))

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Abstract

Plasmonic fiber optic sensors have garnered immense interest in the past two decades owing to their inherent structural, functional, and operational benefits. In particular, U-bent fiber optic sensors with their high evanescent wave absorbance sensitivity offer a unique advantage of efficient monitoring of the optical extinction properties of the plasmonic nanoparticles for the development of a variety of sensing applications. This chapter describes the fundamentals of sensing in the LSPR-based U-bent fiber optic probes. Various factors affecting the performance of plasmonic U-bent probes such as nanoparticle size, shape, geometrical design, and other fiber parameters are discussed in detail. In addition, this chapter provides in-depth coverage of various sensing strategies developed for U-bent plasmonic fiber optic sensor and their applications towards a variety of chemicals and biosensors. Although these plasmonic sensors could achieve the detection limit down to the attomolar levels of the analyte, concerted efforts are needed towards the translation and commercialization of U-bent plasmonic fiber optic sensors to devise a low-cost, field-deployable, point-of-care diagnostic system.

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Authors and Affiliations

  1. Department of Electronics and Instrumentation Engineering, M.S. Ramaiah Institute of Technology, Bengaluru, Karnataka, India

    Christina Grace Danny

  2. Biomedical Engineering Laboratory, Department of Applied Mechanics, Indian Institute of Technology Madras, Chennai, India

    Hariharan Manoharan & V. V. R. Sai

  3. School of Biosciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, India

    Sangeeta Yadav

  4. Centre for Nanobiotechnology, Vellore Institute of Technology, Vellore, Tamil Nadu, India

    Sangeeta Yadav & Jitendra Satija

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  1. Christina Grace Danny
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  2. Hariharan Manoharan
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  3. Sangeeta Yadav
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  4. V. V. R. Sai
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  5. Jitendra Satija
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Correspondence to V. V. R. Sai .

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Editors and Affiliations

  1. Department of Physics, Applied Optics and Photonics Lab, Tezpur University, Tezpur, Assam, India

    Rajib Biswas

  2. Department of Biophysics Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, India

    Nirmal Mazumder

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Danny, C.G., Manoharan, H., Yadav, S., Sai, V.V.R., Satija, J. (2022). U-Bent Fiber Optic Plasmonic Sensors: Fundamentals, Applications, Challenges, and Future Directions. In: Biswas, R., Mazumder, N. (eds) Recent Advances in Plasmonic Probes. Lecture Notes in Nanoscale Science and Technology, vol 33. Springer, Cham. https://doi.org/10.1007/978-3-030-99491-4_11

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