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Recent Advances in Nanomaterials for Biosensing Applications

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Advanced Nanomaterials and Nanotechnology".

Deadline for manuscript submissions: closed (10 November 2022) | Viewed by 2797

Special Issue Editor

NanoTechnas—Center of Nanotechnology and Materials Science, Faculty of Chemistry and Geosciences, Vilnius University, Naugarduko Str. 24, LT-03225 Vilnius, Lithuania
Interests: electrochemistry; bioelectrochemistry; molecularly imprinted polymers; conducting polymers; electrochemical sensors; electrochemical deposition
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue is dedicated to articles on the application of various nanomaterials in biosensor design. Significant attention will be given to nanomaterials that improve charge transfer and are applied in the design of enzymatic biosensors. Some nanomaterials can play the role of redox mediators or even be involved in direct charge transfer. Articles that report application of conducting polymers, gold nanoparticles, various carbon-based nanomaterials (carbon nanotubes, fullerenes, graphene, reduced graphene, nanodiamond, etc.) and semiconducting metal oxides such as TiO2, ZnO, WO3, V2O5, and many others are invited. Research addressing development of immunosensors based on nanomaterials and/or nanotechnological approaches applied for site-directed immobilization of antibodies are also welcome to this Special Issue. DNA sensors and sensors based on DNA aptamers will also be accepted.

Prof. Dr. Arunas Ramanavicius
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. Materials 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

  • biosensors
  • enzymatic biosensors
  • glucose biosensors
  • charge transfer in enzymatic sensors
  • nanomaterials as redox mediators
  • gold nanoparticles
  • metal-oxide-based nanostructures
  • carbon-based nanostructures
  • conjugated polymers
  • affinity biosensors
  • immunosensors

Published Papers (1 paper)

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Research

12 pages, 3551 KiB  
Article
Glassy Carbon Modified with Cationic Surfactant (GCE/CTAB) as Electrode Material for Fast and Simple Analysis of the Arsenic Drug Roxarsone
by Katarzyna Tyszczuk-Rotko and Damian Gorylewski
Materials 2023, 16(1), 345; https://doi.org/10.3390/ma16010345 - 30 Dec 2022
Cited by 2 | Viewed by 1577
Abstract
For the fast and simple sensing of the arsenic drug roxarsone (ROX), the development of a glassy carbon electrode (GCE) modified with cationic surfactant (cetyltrimethylammonium bromide, CTAB) material is critical. The CTAB-modified glassy carbon electrode, in contrast to the unmodified one, showed excellent [...] Read more.
For the fast and simple sensing of the arsenic drug roxarsone (ROX), the development of a glassy carbon electrode (GCE) modified with cationic surfactant (cetyltrimethylammonium bromide, CTAB) material is critical. The CTAB-modified glassy carbon electrode, in contrast to the unmodified one, showed excellent behavior for electrochemical reduction of ROX using cyclic voltammetry (CV) and square-wave adsorptive stripping voltammetry (SWAdSV) techniques. CV studies reveal an irreversible reduction process of NO2 to NH–OH in the ROX molecule in NaAc–HAc buffer (pH = 5.6). The electrode material was characterized using CV and electrochemical impedance spectroscopy. The experiments show that the surfactant-modified material has faster electron transfer and a higher active surface area, and permits a diffusion–adsorption-controlled process. After optimization, the SWAdSV procedure with GCE/CTAB has linear ranges of 0.001–0.02 and 0.02–20 µM, and a detection limit of 0.13 nM. Furthermore, the procedure successfully determined roxarsone in river water samples. Full article
(This article belongs to the Special Issue Recent Advances in Nanomaterials for Biosensing Applications)
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