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Nanophotonic Sensors

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

Deadline for manuscript submissions: closed (30 September 2019) | Viewed by 3937

Special Issue Editors


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Guest Editor
Centre for Industrial and Engineering Optics/School of Physics and Clinical & Optometric Sciences, College of Science and Health, Technological University Dublin, Dublin, Ireland
Interests: functionalised holographic recording materials (photopolymer nanocomposites, self-processing photopolymers, azo-dye-containing polymers); novel methods for fabrication of holograms, and their applications in holographic sensing, holographic data storage, optical micro patterning and micromanipulation, and holographic actuators for smart device design
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Guest Editor
School of Engineering, University of Birmingham, Birmingham, UK
Interests: nanophotonics; laser ablation; wearable sensors

Special Issue Information

Dear Colleagues,

The development of nanophotonic sensors capable of changing their optical properties as a result of recognition and detection of environmental pollutants, biologically relevant analytes, chemical substances, as well as detection of externally applied fields (i.e., electric, magnetic, electromagnetic fields) and temperature gradients have attracted considerable interest in recent years. Among various sensing techniques, nanophotonic sensors using a variation of the properties of nanophotonic structures are receiving increasing attention because of their capability for multiplexing, competitive sensitivity, versatility in obtaining diverse information in situ, and fabrication compatible with current industrial approaches. This Special Issue aims at presenting reports on recent developments in the development and applications of nanophotonic sensors.

Prof. Izabela Naydenova
Dr. Haider Butt
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 2600 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

  • nanophotonics;
  • nanophotonic structures for sensing;
  • nanoparticle-based sensors;
  • waveguide-based nanophotonic sensors;
  • photonic crystal sensors;
  • holographic sensors;
  • graphene nanophotonic sensors;
  • nanoplasmonic sensing and detection

Published Papers (1 paper)

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Research

15 pages, 6786 KiB  
Article
Modified Surface Relief Layer Created by Holographic Lithography: Application to Selective Sodium and Potassium Sensing
by Sabad-E Gul, Luke O’Neill, John Cassidy and Izabela Naydenova
Sensors 2019, 19(5), 1026; https://doi.org/10.3390/s19051026 - 28 Feb 2019
Cited by 5 | Viewed by 3128
Abstract
Point-of-care diagnostics will rely upon the development of low-cost, noncomplex, and easily integrated systems in order to examine biological samples such as blood and urine obtained from the patient. The development of metal ion sensors is a subject of significant relevance for physiological [...] Read more.
Point-of-care diagnostics will rely upon the development of low-cost, noncomplex, and easily integrated systems in order to examine biological samples such as blood and urine obtained from the patient. The development of metal ion sensors is a subject of significant relevance for physiological samples. The level of different blood electrolytes, mainly H+, Na+, K+ and Cl is considerably used to monitor irregular physiologies. The particular challenge in biosensing, and in fact for any other sensor, is signal differentiation between non-specifically bound material and the specific detecting of the target molecule/ion. The biosensors described in this paper are fabricated by a holographic recording of surface relief structures in a photopolymer material. The surface structures are modified by coating with either dibenzo-18-crown-6 (DC) or tetraethyl 4-tert-butylcalix[4]arene (TBC), which are embedded in a polymer matrix. Interrogation of these structures by light allows indirect measurement of the concentration of the analyte. The influence of polymer matrices with different porosities, plasticised polyvinyl chloride (PVC) and a sol-gel matrix, on the performance of the sensors for detection of K+ and Na+ is examined. Here we demonstrate a proof of concept that by using a matrix with higher porosity one can increase the sensitivity of the sensor. The results showed that the DC sensing layer provides a selective response to K+ over Na+ and the TBC modified grating is more responsive to Na+ over K+. The sensor responds to K+ and Na+ within the physiological concentration ranges. Full article
(This article belongs to the Special Issue Nanophotonic Sensors)
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