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New Emerging Materials and Their Applications in the Development of Electrochemical Sensors

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Materials Chemistry".

Deadline for manuscript submissions: closed (20 July 2022) | Viewed by 2253

Special Issue Editor


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Guest Editor
Department of Chemistry, Maynooth University, Maynooth, Co Kildare, Ireland
Interests: electrochemistry; 2D materials; sensors; advanced oxidation processes; biopolymers; adsorbents and corrosion protection

Special Issue Information

Dear Colleagues,

Sensors for the quantification of analytes in biological samples, relevant to health care, pharmaceutical products, and in the determination of pollutant concentrations in water systems have never been more in demand. The quality of water is declining, as increasing concentrations of pollutants escape into the aquatic environment. Furthermore, the monitoring of biomolecules, biomarkers, and drugs in pharmaceutical formulations is especially important in healthcare.

This Special Issue will address recent advances made in the fabrication of sensitive and selective sensors that can be employed in the quantification of biomolecules, biomarkers, drugs and environmental contaminants, with a focus on emerging new materials. Therefore, our aim is to provide readers from different disciplines and sectors with the latest information on new materials emerging in the creation of high-performing sensors.

It is my pleasure to invite you to submit a manuscript to this Special Issue. Original papers are solicited on new and emerging materials and their applications in the development of electrochemical sensors, with a focus on (but not limited to) the following topics:

  • 2D and layered materials in the fabrication of sensors, including materials such as MXenes, graphene, carbon nanotubes/nanohorns, metal nitrides, hexagonal boron nitride, and layered dichalcogenides;
  • Recent developments in nanoparticles, magnetic nanoparticles, nanoinks, and single atom electrocatalysts as sensors;
  • Molecular recognition agents employed to give enhanced selectivity;
  • Sensor arrays for the simultaneous detection of multiple analytes;
  • New methods to immobilize and anchor nanoscale materials at the sensor surface, limiting leaching and associated environmental concerns.

Prof. Dr. Carmel Breslin
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

  • electrochemical sensors
  • 2D materials
  • layered materials
  • MXenes
  • graphene
  • carbon nanohorns
  • dichalcogenides
  • sensor arrays
  • single atoms
  • nanoparticles
  • magnetic nanoparticles
  • selective molecular recognition

Published Papers (1 paper)

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Research

16 pages, 6177 KiB  
Article
Fabrication of a Selective Sensor Amplification Probe Modified with Multi-Component Zn2SnO4/SnO2 Heterostructured Microparticles as a Robust Electrocatalyst for Electrochemical Detection of Antibacterial Drug Secnidazole
by Ramaraj Sukanya, Karuppaiah Balamurugan, Shen-Ming Chen, Ramachandran Rajakumaran, K. Muthupandi, Jae-Jin Shim and Carmel B. Breslin
Materials 2021, 14(21), 6700; https://0-doi-org.brum.beds.ac.uk/10.3390/ma14216700 - 07 Nov 2021
Cited by 6 | Viewed by 2093
Abstract
In this study, we synthesized heterostructured zinc stannate/tin oxide microparticles (ZTO/TO MPs) by a simple coprecipitation method and used them as an effective electrode material for the electrochemical detection of the antibacterial drug secnidazole (SCZ). The as-prepared ZTO/TO MPs were characterized by XRD, [...] Read more.
In this study, we synthesized heterostructured zinc stannate/tin oxide microparticles (ZTO/TO MPs) by a simple coprecipitation method and used them as an effective electrode material for the electrochemical detection of the antibacterial drug secnidazole (SCZ). The as-prepared ZTO/TO MPs were characterized by XRD, Raman, FE-SEM, HR-TEM, EDX, and XPS analyses. The physiochemical studies clearly proved that the fabricated ZTO/TO MPs were formed in a heterostructure phase without other impurities. A glassy carbon electrode modified with the synthesized ZTO/TO MPs showed an excellent and improved electrocatalytic activity in the electrochemical reduction of SCZ. Using differential pulse voltammetry (DPV), an impressive linear calibration range, extending from 0.01 to 193 μM, was observed, coupled with a detection limit of 0.0054 μM and a sensitivity of 0.055 μA/μM. In addition, the ZTO/TO MPs/GCE showed very good selectivity for the detection of SCZ in the presence of a number of biological, inorganic, and structurally related compounds. Finally, the ZTO/TO MPs/GCE was investigated for the analysis of SCZ in human blood serum samples. A very good recovery was obtained when spiking the blood serum with SCZ, highlighting the good applicability of the ZTO/TO MPs/GCE for the electrochemical analysis of SCZ in complex biological samples. Full article
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