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Special Issue "Electrochemical Nanobiosensors"

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

Deadline for manuscript submissions: 28 June 2019

Special Issue Editor

Guest Editor
Dr. Alfredo De la Escosura-Muñiz

Nanobioanalysis Group, Department of Physical and Analytical Chemistry, University of Oviedo, Oviedo, Spain
Website | E-Mail
Interests: nanobiosensors; lateral flow analysis; electrochemical biosensors; electrocatalysis; nanochannels

Special Issue Information

Dear Colleagues,

Investigations on nanomaterials have increased rapidly in recent years due to their size and shape-dependent physical, chemical and electrochemical properties, which make them extremely useful in sensing and biosensing applications. The size and the composition of nanostructured materials are advantageous over the corresponding bulk structure because a target binding event (i.e., DNA hybridization, immunoreaction or aptamer recognition) involving nanomaterials can have a significant effect on its electrochemical properties (revealed through voltammetric, potentiometric, conductometric or impedimetric measurements), offering novel options for bioanalysis.

The aim of this Special Issue is to focus on the most recent strategies and developments in this field. Papers should address the use of innovative nanomaterials and/or the study and application of novel electrical/electrochemical properties and/or signal amplification capabilities of such materials in the development of biosensors. Metallic/semiconductor nanoparticles, nanoporous platforms and 2D materials are among the cutting-edge nanomaterials expected to be explored in this Special Issue.

Both review articles and original research papers are welcome.

Dr. Alfredo de la Escosura-Muñiz
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 papers will be 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 1800 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
  • electroanalysis
  • nanomaterial
  • nanoparticle
  • nanopore/nanochannel
  • 2D material

Published Papers (2 papers)

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Research

Open AccessArticle
Electrochemical Fingerprint of Arsenic (III) by Using Hybrid Nanocomposite-Based Platforms
Sensors 2019, 19(10), 2279; https://doi.org/10.3390/s19102279
Received: 21 March 2019 / Revised: 14 May 2019 / Accepted: 15 May 2019 / Published: 17 May 2019
PDF Full-text (3113 KB) | HTML Full-text | XML Full-text
Abstract
Arsenic, one of the most abundant mineral and also one to the most toxic compounds. Due to its high toxicity sensitive analytical methods are highly important, taking into account that the admitted level is in the range of µg L−1. A [...] Read more.
Arsenic, one of the most abundant mineral and also one to the most toxic compounds. Due to its high toxicity sensitive analytical methods are highly important, taking into account that the admitted level is in the range of µg L−1. A novel and easy to use platform for As(III) detection from water samples is proposed, based on gold and platinum bi metallic nanoparticles and a conductive polymer (polyaniline). The electrochemical detection was achieved after optimization of cathodic pre-concentration and stripping parameters by square wave anodic stripping voltammetry at modified screen-printed carbon-based electrochemical cells, proving its applicability for disposable and cost-effective in situ analysis of arsenic. Full article
(This article belongs to the Special Issue Electrochemical Nanobiosensors)
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Open AccessArticle
Construction of a Biosensor Based on a Combination of Cytochrome c, Graphene, and Gold Nanoparticles
Sensors 2019, 19(1), 40; https://doi.org/10.3390/s19010040
Received: 26 November 2018 / Revised: 17 December 2018 / Accepted: 19 December 2018 / Published: 22 December 2018
Cited by 1 | PDF Full-text (2693 KB) | HTML Full-text | XML Full-text | Supplementary Files
Abstract
A biosensor based on a combination of cytochrome c (Cyt c), electrochemical reduced graphene oxides (ERGO), and gold nanoparticles (AuNPs) on a glassy carbon electrode (GCE) was fabricated. The proposed biosensor electrode was denoted as GCE/ERGO-Nafion/AuNPs/Cyt c/Nafion, where ERGO-Nafion was deposited [...] Read more.
A biosensor based on a combination of cytochrome c (Cyt c), electrochemical reduced graphene oxides (ERGO), and gold nanoparticles (AuNPs) on a glassy carbon electrode (GCE) was fabricated. The proposed biosensor electrode was denoted as GCE/ERGO-Nafion/AuNPs/Cyt c/Nafion, where ERGO-Nafion was deposited by dropping graphene oxides-Nafion mixed droplet first and following electrochemical reduction, AuNPs were directly deposited on the surface of the ERGO-Nafion modified electrode by electrochemical reduction, and other components were deposited by the dropping-dry method. The effect of the deposition amount of AuNPs on direct electrochemistry of Cyt c in the proposed electrode was investigated. The hydrogen peroxide was taken to evaluate the performance of the proposed biosensor. The results showed that the biosensor has great analytical performance, including a high sensitivity, a wide linear range, a low detection limit, and good stability, reproducibility, and reliability. Full article
(This article belongs to the Special Issue Electrochemical Nanobiosensors)
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