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Micro/Nanostructured Sensors for Biomedical Applications

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

Deadline for manuscript submissions: closed (1 March 2022) | Viewed by 4153

Special Issue Editor


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Guest Editor
Department of Electrical and Computer Engineering, Concordia University, Montreal, QC H3G1M8, Canada
Interests: nanotechnology; optoelecronic devices; sensors

Special Issue Information

Dear Colleagues,

The number of research articles on biomedical sensors has grown vastly over the last several years due to their great potential for in-situ, direct, and label-free detection of many chemical and biological substances. You can find their application in many aspects of our daily lives, including controlling the environment and ecosystems, healthcare, safety, food industries, and medicine. Developing novel sensors using MEMS has been a major area of research for many years, and many of these sensors have been commercialized and are now available on the market. Nanotechnology has also helped us to develop very sensitive sensors with applications in many areas. Moreover, MEMS and nanotechnology techniques have been used together to develop highly sensitive and smart sensors for biochemical, biological, and biomedical applications. This Special Issue aims to present a collection of articles describing the latest developments and most recent studies conducted in the area of MEMS/nanotechnology. We are particularly interested in studies that deal with integrated devices for sensors with application in biomedical areas including, but not limited to, diagnosis, drug discovery, and healthcare.

Prof. Dr. Mojtaba Kahrizi
Guest Editor

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

  • sensors
  • nanotechnology
  • MEMS
  • biomedical devices
  • medicine
  • integrated devices

Published Papers (1 paper)

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Research

16 pages, 6375 KiB  
Article
Finite Element Modelling of Bandgap Engineered Graphene FET with the Application in Sensing Methanethiol Biomarker
by Paramjot Singh, Parsoua Abedini Sohi and Mojtaba Kahrizi
Sensors 2021, 21(2), 580; https://doi.org/10.3390/s21020580 - 15 Jan 2021
Cited by 10 | Viewed by 3758
Abstract
In this work, we have designed and simulated a graphene field effect transistor (GFET) with the purpose of developing a sensitive biosensor for methanethiol, a biomarker for bacterial infections. The surface of a graphene layer is functionalized by manipulation of its surface structure [...] Read more.
In this work, we have designed and simulated a graphene field effect transistor (GFET) with the purpose of developing a sensitive biosensor for methanethiol, a biomarker for bacterial infections. The surface of a graphene layer is functionalized by manipulation of its surface structure and is used as the channel of the GFET. Two methods, doping the crystal structure of graphene and decorating the surface by transition metals (TMs), are utilized to change the electrical properties of the graphene layers to make them suitable as a channel of the GFET. The techniques also change the surface chemistry of the graphene, enhancing its adsorption characteristics and making binding between graphene and biomarker possible. All the physical parameters are calculated for various variants of graphene in the absence and presence of the biomarker using counterpoise energy-corrected density functional theory (DFT). The device was modelled using COMSOL Multiphysics. Our studies show that the sensitivity of the device is affected by structural parameters of the device, the electrical properties of the graphene, and with adsorption of the biomarker. It was found that the devices made of graphene layers decorated with TM show higher sensitivities toward detecting the biomarker compared with those made by doped graphene layers. Full article
(This article belongs to the Special Issue Micro/Nanostructured Sensors for Biomedical Applications)
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