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Special Issue "Optical Label-Free Sensors"

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

Deadline for manuscript submissions: closed (30 November 2020) | Viewed by 1674

Special Issue Editors

Dr. Rafael Casquel del Campo
E-Mail Website
Guest Editor
1) Applied Physics and Materials Engineering, ETSI Industriales, Universidad Politécnica de Madrid., Universidad Politécnica de Madrid. José Gutiérrez Abascal 2, 28006 Madrid, Spain
2) Optics, Photonics and Biophotonics group. Center for Biomedical Technology. Campus de Montegancedo, Universidad Politécncia de Madrid. 28823 Pozuelo de Alarcón, Madrid, Spain
Interests: photonics; micro-nano fabrication; optical sensors
Dr. María Fé Laguna Heras
E-Mail Website
Guest Editor
1) Applied Physics and Materials Engineering, ETSI Industriales, Universidad Politécnica de Madrid. José Gutiérrez Abascal 2, 28006 Madrid, Spain
2) Optics, Photonics and Biophotonics group. Center for Biomedical Technology. Campus de Montegancedo, Universidad Politécnica de Madrid. 28823 Pozuelo de Alarcón, Madrid, Spain
Interests: biofunctionalization, optical biosensors, sensing surface

Special Issue Information

Dear Colleagues,

Optical Label-Free Sensors is a research field which has focused growing interest since first devices, such as Surface Plasmon Resonance (SPR) based biosensors, emerged as an alternative for biodetection. Since then, biofunctionalization techniques, micro and nano fabrication processes, microfluidic devices and have contributed to develop highly integrable biosensors, with really low values of limit of detection (both for refractive index sensing and biodetection), hardly reachable with other sensing techniques, and also requiring really small values of sample for all the detection process.

In this special issue we will focus on recent advances on the optical biosensing field: New or improved platforms for optical sensing, optimized optical transducers, integrated devices, multiplexed detection units, biofunctionalization protocols for transducers and characterization of the performance of sensors are some examples of the sub topics covered in this special issue, no excluding other any other topic related

Dr. Rafael Casquel del Campo
Dr. María Fé Laguna Heras.
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Sensors is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Biosensors
  • Label-free refractive index sensing
  • biofucntionalization

Published Papers (1 paper)

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Research

Article
Photothermal Effect in Plasmonic Nanotip for LSPR Sensing
Sensors 2020, 20(3), 671; https://doi.org/10.3390/s20030671 - 25 Jan 2020
Cited by 4 | Viewed by 1499
Abstract
The influence of heat generation on the conventional process of LSPR based sensing has not been explored thus far. Therefore, a need exists to draw attention toward the heat generation issue during LSPR sensing as it may affect the refractive index of the [...] Read more.
The influence of heat generation on the conventional process of LSPR based sensing has not been explored thus far. Therefore, a need exists to draw attention toward the heat generation issue during LSPR sensing as it may affect the refractive index of the analyte, leading to incorrect sensory conclusions. This manuscript addresses the connection between the photo-thermal effect and LSPR. We numerically analyzed the heat performance of a gold cladded nanotip. The numerical results predict a change in the micro-scale temperature in the microenvironment near the nanotip. These numerical results predict a temperature increase of more than 20 K near the apex of the nanotip, which depends on numerous factors including the input optical power and the diameter of the fiber. We analytically show that this change in the temperature influences a change in the refractive index of the microenvironment in the vicinity of the nanotip. In accordance with our numerical and analytical findings, we experimentally show an LSPR shift induced by a change in the input power of the source. We believe that our work will bring the importance of temperature dependence in nanotip based LSPR sensing to the fore. Full article
(This article belongs to the Special Issue Optical Label-Free Sensors)
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