Synthesis and Characterization of Carbon–Based Materials for Applications in Chemical and Biological Sensing

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Materials Processes".

Deadline for manuscript submissions: closed (31 December 2020) | Viewed by 3878

Special Issue Editors


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Guest Editor
Faculty of Chemistry, Nicolaus Copernicus University, ul. Gagarina 11, 87-100 Torun, Poland
Interests: nanomaterials; heteroatom-doped carbon; supercapacitors; metal–air batteries; oxygen reduction reaction (ORR); hybrid catalysts; water splitting; green hydrogen; oxygen evolution reaction (OER); hydrogen evolution reaction (HER)
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
1. Faculty of Chemistry, Nicolaus Copernicus University, Gagarina 7, 87-100 Torun, Poland
2. Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University, Wilenska 4, 87-100 Torun, Poland
Interests: nanomaterials; 3D nano-scale structuration of graphene flakes by physical and chemical methods; carbon molecular sieves; N-rich nano-porous carbon matrixes; thermal direct conversion of polymers to multi-walled carbon nanotubes; porous carbon–based materials for applications in supercapacitors; metal–air batteries; solar cells; biological sensing
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

In the last 20 years, the construction of chemical and biological sensors has become one of the most rapidly emerging research fields. It is a multidisciplinary task which comprises basic and applied knowledge of chemistry, physics, biology, electronics, software design, and materials science. Many research concepts in this field have been finalized as marketable products with a great potential for application, making life easier and safer. The application of carbon-based materials in sensor design relies on their unique chemical and structural properties. This Special Issue welcomes outstanding innovative contributions presenting the application of carbon black, glassy carbon, activated carbon, graphite, graphene, diamond, fullerenes, carbon nanotubes, carbon dots, and carbon-based hybrids to chemical and biological sensing. Other carbon-based materials in addition to those mentioned are also interesting. We also welcome contributions to the review of key trends and topics in the field of carbon-based materials for application in chemical and biological sensing.

Dr. Anna Ilnicka
Prof. Dr. Jerzy P. Lukaszewicz
Guest Editors

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Keywords

  • chemical sensor
  • biosensor
  • carbon-based material

Published Papers (1 paper)

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Research

18 pages, 3621 KiB  
Article
Green Method Synthesised Graphene-Silver Electrochemical Nanobiosensors for Ethambutol and Pyrazinamide
by Rachel Fanelwa AjayI, Siphokazi Tshoko, Yonela Mgwili, Siphamandla Nqunqa, Takalani Mulaudzi, Noluthando Mayedwa and Emmanuel Iwuoha
Processes 2020, 8(7), 879; https://doi.org/10.3390/pr8070879 - 21 Jul 2020
Cited by 9 | Viewed by 3305
Abstract
A novel nanobiosensor was constructed with graphene oxide (GO) sheets coupled to pear extract-based green-synthesised silver nanoparticles (Ag-NPs) to which cytochrome P450-2D6 (CYP2D6) enzyme was attached. The biosensor was applied in the electrochemical detection of the tuberculosis (TB) treatment drugs, ethambutol (EMB) and [...] Read more.
A novel nanobiosensor was constructed with graphene oxide (GO) sheets coupled to pear extract-based green-synthesised silver nanoparticles (Ag-NPs) to which cytochrome P450-2D6 (CYP2D6) enzyme was attached. The biosensor was applied in the electrochemical detection of the tuberculosis (TB) treatment drugs, ethambutol (EMB) and pyrazinamide (PZA). The surface morphology of the green-synthesised nanocomposites was studied by performing High-Resolution Transmission Electron Microscopy (HR-TEM) and High-Resolution Scanning Electron Microscopy (HR-SEM). Fourier Transform Infrared Spectroscopy (FTIR) and Raman Spectroscopy were used for structural analysis, while Ultraviolet Visible (UV-Vis) Spectroscopy was used in the optical characterisation of the nanocomposite material. Electrochemical studies on glassy carbon electrode (GCE), which were done by Cyclic Voltammetry (CV), showed that the GO|Ag-NPs||GCE electrode was highly conductive, and thereby indicating its suitability as a platform for nanobiosensor development. The non-toxic and low-cost green GO|Ag-NPs|CYP2D6||GCE nanobiosensor was used to determine EMB and PZA. The very low limit of detection (LOD) values of the biosensor for EMB (0.2962 × 10−2 nM, S/N = 3) and PZA (0.897 × 10−2 nM, S/N = 3) demonstrate that the green nanobiosensor is more sensitive than other biosensors reported for EMB and PZA. Full article
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