Novel 2D Material-Based Electrochemical Sensors

A special issue of Chemosensors (ISSN 2227-9040).

Deadline for manuscript submissions: closed (31 January 2022) | Viewed by 5469

Special Issue Editor

Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, Manchester M1 5GD, UK
Interests: electrochemistry; electron transfer; sensors; nanotechnology; fundamental characterization of 2D materials (including graphene); energy generation and storage

Special Issue Information

Dear Colleagues,

In recent years, the exploration of 2D materials has been widely employed to enhance chemically important applications. There have been significant breakthroughs and advancements in a number of fields, one of which is that of electrochemical sensors. In light of this, 2D material-based electrochemical sensors are attractive in terms of their applicability in environmental, biological, forensic and fundamental studies, to name a few.

The focus of this Special Issue is on novel 2D material-based electrochemical sensors, focusing on the incorporation of 2D nanomaterials (such as, graphene, h-BN, MoS2, MoSe2, WS2, WSe2, phosphorene, antimonene, and so on) and their application within electrochemical sensors. We welcome submissions concerning any electrochemical technique, such as voltammetric, amperometric, impedimetric, etc., from either direct and/or indirect electrochemical routes. Furthermore, the approach for incorporating 2D materials into the electrochemical set-up is a critical factor when considering the performance of such analytical devices and hence we strongly encourage contributions from a range of such fabrication routes, including: screen-printed; 3D-printed; electro-deposited; drop-casted; single crystal; thin films; composites. Researchers working in these specific fields are strongly encouraged to submit their work.

Dr. Dale A. C. Brownson
Guest Editors

Manuscript Submission Information

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Keywords

  • Electrochemistry 
  • 2D Nanomaterials
  • Sensor design/development 
  • Sensor fabrication 
  • Modified electrode surfaces 
  • Composite electrodes 
  • Analytical methods
  • Electron transfer

Published Papers (1 paper)

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Research

14 pages, 2078 KiB  
Article
Screen Printed Electrode Based Detection Systems for the Antibiotic Amoxicillin in Aqueous Samples Utilising Molecularly Imprinted Polymers as Synthetic Receptors
by Oliver Jamieson, Thais C. C. Soares, Beatriz A. de Faria, Alexander Hudson, Francesco Mecozzi, Samuel J. Rowley-Neale, Craig E. Banks, Jonas Gruber, Katarina Novakovic, Marloes Peeters and Robert D. Crapnell
Chemosensors 2020, 8(1), 5; https://doi.org/10.3390/chemosensors8010005 - 29 Dec 2019
Cited by 40 | Viewed by 4908
Abstract
Molecularly Imprinted Polymers (MIPs) were synthesised for the selective detection of amoxicillin in aqueous samples. Different functional monomers were tested to determine the optimal composition via batch rebinding experiments. Two different sensor platforms were tested using the same MIP solution; one being bulk [...] Read more.
Molecularly Imprinted Polymers (MIPs) were synthesised for the selective detection of amoxicillin in aqueous samples. Different functional monomers were tested to determine the optimal composition via batch rebinding experiments. Two different sensor platforms were tested using the same MIP solution; one being bulk synthesized and surface modified Screen Printed Electrodes (SPEs) via drop casting the microparticles onto the electrode surface and the other being UV polymerized directly onto the SPE surface in the form of a thin film. The sensors were used to measure amoxicillin in conjunction with the Heat-Transfer Method (HTM), a low-cost and simple thermal detection method that is based on differences in the thermal resistance at the solid–liquid interface. It was demonstrated that both sensor platforms could detect amoxicillin in the relevant concentration range with Limits of Detection (LOD) of 1.89 ± 1.03 nM and 0.54 ± 0.10 nM for the drop cast and direct polymerisation methods respectively. The sensor platform utilising direct UV polymerisation exhibited an enhanced response for amoxicillin detection, a reduced sensor preparation time and the selectivity of the platform was proven through the addition of nafcillin, a pharmacophore of similar shape and size. The use of MIP-modified SPEs combined with thermal detection provides sensors that can be used for fast and low-cost detection of analytes on-site, which holds great potential for contaminants in environmental aqueous samples. The platform and synthesis methods are generic and by adapting the MIP layer it is possible to expand this sensor platform to a variety of relevant targets. Full article
(This article belongs to the Special Issue Novel 2D Material-Based Electrochemical Sensors)
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