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Optical Biosensors

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Biomedical Sensors".

Deadline for manuscript submissions: closed (31 March 2021) | Viewed by 4175

Special Issue Editors


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Guest Editor
ElicaDea, Spinoff of Federico II University, 80131 Naples, Italy
Interests: immunosensors; surface plasmon resonance (SPR); localized surface plasmon resonance (LSPR); magnetic biosensors

E-Mail Website
Guest Editor
Università degli Studi di Napoli Federico II, Naples, Italy
Interests: biosensing; immunosensors; localized surface plasmon resonance (LSPR); magnetic biosensors; electrochemical biosensors (CV, EIS); nanoparticles functionalization
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Special Issue Information

Dear Colleagues,

Recently, immunosensors have attracted attention because they are widely applied for the detection of various pathogens. Among the commonly used immunosensors, the optical immunosensor features prominently as an effective tool for the quantification of the amount of antibodies, antigens, or haptens in complex samples with high sensitivity and specificity.

This Special Issue welcomes both reviews and original research articles in the field of optical immunosensors. Topics include but are not restricted to optical-fiber platforms, colorimetric sensors (e.g., LSPR), surface plasmon resonance, Raman spectroscopy, and fluorescence (also plasmon enhanced fluorescence).

There is no limit to the chemical and biological aspects by which an optical immunosensor can be manufactured.

Prof. Raffaele Velotta
Dr. Bartolomeo Della Ventura
Guest Editors

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Keywords

  • Biosensor
  • Optical waveguide
  • Nanomaterials and nanoparticle
  • Label-free sensors
  • Surface plasmon resonance (SPR)
  • Localized surface plasmon resonance (LSPR)
  • Plasmon enhanced fluorescence (PEF)
  • Raman spectroscopy
  • Fluorescence
  • Biophotonics
  • Colorimetric sensor

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Published Papers (1 paper)

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12 pages, 3826 KiB  
Letter
GaN-Based High-Contrast Grating for Refractive Index Sensor Operating Blue–Violet Wavelength Region
by Yuusuke Takashima, Masanobu Haraguchi and Yoshiki Naoi
Sensors 2020, 20(16), 4444; https://doi.org/10.3390/s20164444 - 9 Aug 2020
Cited by 2 | Viewed by 3770
Abstract
Owing to its versatility, optical refractive index (RI) sensors with compact size and high chemical stability are very suitable for a wide range of the applications in the internet of things (IoT), such as immunosensor, disease detection, and blood mapping. In this study, [...] Read more.
Owing to its versatility, optical refractive index (RI) sensors with compact size and high chemical stability are very suitable for a wide range of the applications in the internet of things (IoT), such as immunosensor, disease detection, and blood mapping. In this study, a RI sensor with very simple system and high chemical stability was developed using GaN-based high-contrast grating (HCG). The designed HCG pattern was fabricated on GaN-film grown on c-plane sapphire substrate. The fabricated GaN-HCG sensor can detect minuscule RI change of 1.71 × 10–3 with extreme simple surface normal irradiation system. The light behavior inside the GaN-HCG was discussed using numerical electromagnetic field calculation, and the deep understand of the sensing mechanism was provided. The simple system and very high chemical stability of our sensor exploit RI sensing applications in IoT society. Full article
(This article belongs to the Special Issue Optical Biosensors)
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