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Carbon-Based Composite Materials for Electrodes

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

Deadline for manuscript submissions: closed (10 November 2023) | Viewed by 7791

Special Issue Editors


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Guest Editor
Department of Chemistry, FMKMC College, Mangalore University Constituent College, Madikeri 571201, Karnataka, India
Interests: biosensors; biomaterials
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Department of Analytical Chemistry, Faculty of Pharmacy, Ankara University, 06560 Ankara, Turkey
Interests: pharmacology and toxicology; electrochemical drug analysis; nanosensor; biosensors; protein; electrochemistry
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Nowadays, an understanding of the present environmental, biological, and chemical world is vital for numerous topics. Detection of biologically, chemically and environmentally active molecules has become common in fundamental research owing to the rapid advancements in human health, environmental monitoring and strict environmental and biological protection acts. Scientists, scholars and research students have recently turned their attention to carbon-based composite materials for the preparation of electrodes for various sensing applications in health, food, pharmacological, biological and environmental fields in a simpler and more sensitive manner using electrochemical methodologies. Furthermore, significant progress in electrochemical methods has been realized over the years, involving the modification of carbon-based composite electrodes with appropriate materials and chemicals, which are beneficial for the examination of numerous categories of biologically, chemically and environmentally active molecules. Appropriate voltammetric approaches are nowadays frequently found in mechanistic and reaction-based electrochemical and analytical studies. Methodical electrochemical research allows for quick, elevated sensitivity and easy measurement of the above-mentioned mechanistic molecules. Modified carbon-based composite materials for electrodes are regularly used in sensing application due to their high biocompatibility, reproducibility, steadiness, easy preparation and renewability with low ohmic resistance and high thermal stability and chemical stability. Carbon-based materials are comparatively inexpensive and environmentally friendly and show good electronic properties with the analyte. This Special Issue aims to provide a complete overview of carbon-based composite materials for electrodes and their usefulness.

This Special Issue covers all the aspects and sensing applications of carbon-based composite materials for electrodes and various sensing applications for biologically, chemically and environmentally active molecules.

Dr. J. G. Manjunatha
Prof. Dr. Bengi Uslu
Guest Editors

Manuscript Submission Information

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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

  • carbon-based materials
  • health monitoring
  • biological samples
  • environmental samples
  • drug molecules analysis keyword
  • environmental analysis
  • carbon nanostructures
  • electrochemical sensors
  • carbon composite materials

Published Papers (4 papers)

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Editorial

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1 pages, 152 KiB  
Editorial
Carbon-Based Composite Materials for Electrodes
by Jamballi G. Manjunatha and Bengi Uslu
Materials 2022, 15(14), 4908; https://doi.org/10.3390/ma15144908 - 14 Jul 2022
Cited by 1 | Viewed by 951
Abstract
Carbon-Based Composite Materials for Electrodes is a new open Special Issue of Materials, which has the goal of publishing original research and review articles focused on carbon nanotubes, graphene, activated carbon, graphite, pencil graphite, graphene oxide, graphene nanoplatelets, pyrolytic graphite, organic mass [...] Read more.
Carbon-Based Composite Materials for Electrodes is a new open Special Issue of Materials, which has the goal of publishing original research and review articles focused on carbon nanotubes, graphene, activated carbon, graphite, pencil graphite, graphene oxide, graphene nanoplatelets, pyrolytic graphite, organic mass derived carbon, fullerenes, diamond, glassy carbon, carbon fibers, and other composites for electrode preparation and its applications [...] Full article
(This article belongs to the Special Issue Carbon-Based Composite Materials for Electrodes)

Research

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14 pages, 4148 KiB  
Article
Synthesis and Characterization of High Entropy Alloy 23Fe-21Cr-18Ni-20Ti-18Mn for Electrochemical Sensor Applications
by Shashanka Rajendrachari, Vinayak Adimule, Mahir Gulen, Farshid Khosravi and Kiran Kenchappa Somashekharappa
Materials 2022, 15(21), 7591; https://doi.org/10.3390/ma15217591 - 28 Oct 2022
Cited by 29 | Viewed by 1936
Abstract
High entropy alloys (HEA) are one of the modern-era alloys accelerating with greater velocity because of their excellent properties and different applications. In the present paper, we have successfully fabricated HEA (23Fe-21Cr-18Ni-20Ti-18Mn) powders by ball milling the elemental Fe, Cr, Ni, Ti, and [...] Read more.
High entropy alloys (HEA) are one of the modern-era alloys accelerating with greater velocity because of their excellent properties and different applications. In the present paper, we have successfully fabricated HEA (23Fe-21Cr-18Ni-20Ti-18Mn) powders by ball milling the elemental Fe, Cr, Ni, Ti, and Mn powders for 15 h. The advancement of the milling process and phase transformation of HEAs were studied by using X-ray diffraction (XRD) and scanning electron microscope (SEM). The crystallite size and the lattice strain of the HEA were calculated by using the Williamson-Hall (W-H) equation and the values were found to be 7 nm and 0.0176%, respectively. Similarly, the true lattice parameter was calculated using the Nelson–Riley (N-R) extrapolation method, and the value was found to be 3.544 Å. We have successfully investigated the electrochemical response of 15 h ball milled 23Fe-21Cr-18Ni-20Ti-18Mn HEA powders to determine the ascorbic acid (AA) using cyclic voltammetry. We have modified the carbon paste electrode with ball milled HEA of concentrations 0, 2, 4, 6, 8, and 10 mg, and among them, 8 mg HEA modified carbon paste electrode (HEA-MCPE) depicted the highest current sensitivity. We reported the effect of modifier concentration, analyte concentration, scan rate, and pH on the oxidation peak of AA. The electrochemical active surface area of carbon paste and MCPE was calculated using the Nernst equation and the values were found to be 0.0014 cm2 and 0.0027 cm2, respectively. The fabricated HEA-MCPE showed excellent current sensitivity, stability, anti-fouling, and selectivity. Full article
(This article belongs to the Special Issue Carbon-Based Composite Materials for Electrodes)
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10 pages, 2330 KiB  
Article
A Fukui Analysis of an Arginine-Modified Carbon Surface for the Electrochemical Sensing of Dopamine
by Santhosh Kumar Revanappa, Isha Soni, Manjappa Siddalinganahalli, Gururaj Kudur Jayaprakash, Roberto Flores-Moreno and Chandrashekar Bananakere Nanjegowda
Materials 2022, 15(18), 6337; https://doi.org/10.3390/ma15186337 - 13 Sep 2022
Cited by 15 | Viewed by 1601
Abstract
Amino acid-modified carbon interfaces have huge applications in developing electrochemical sensing applications. Earlier reports suggested that the amine group of amino acids acted as an oxidation center at the amino acid-modified electrode interface. It was interesting to locate the oxidation centers of amino [...] Read more.
Amino acid-modified carbon interfaces have huge applications in developing electrochemical sensing applications. Earlier reports suggested that the amine group of amino acids acted as an oxidation center at the amino acid-modified electrode interface. It was interesting to locate the oxidation centers of amino acids in the presence of guanidine. In the present work, we modeled the arginine-modified carbon interface and utilized frontier molecular orbitals and analytical Fukui functions based on the first principle study computations to analyze arginine-modified CPE (AMCPE) at a molecular level. The frontier molecular orbital and analytical Fukui results suggest that the guanidine (oxidation) and carboxylic acid (reduction) groups of arginine act as additional electron transfer sites on the AMCPE surface. To support the theoretical observations, we prepared the arginine-modified CPE (AMCPE) for the cyclic voltammetric sensing of dopamine (DA). The AMCPE showed excellent performance in detecting DA in blood serum samples. Full article
(This article belongs to the Special Issue Carbon-Based Composite Materials for Electrodes)
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Review

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33 pages, 3249 KiB  
Review
Studies of Monoamine Neurotransmitters at Nanomolar Levels Using Carbon Material Electrodes: A Review
by Pankaj Kumar, Isha Soni, Gururaj Kudur Jayaprakash and Roberto Flores-Moreno
Materials 2022, 15(16), 5782; https://doi.org/10.3390/ma15165782 - 22 Aug 2022
Cited by 3 | Viewed by 2640
Abstract
Neurotransmitters (NTs) with hydroxyl groups can now be identified electrochemically, utilizing a variety of electrodes and voltammetric techniques. In particular, in monoamine, the position of the hydroxyl groups might alter the sensing properties of a certain neurotransmitter. Numerous research studies using electrodes modified [...] Read more.
Neurotransmitters (NTs) with hydroxyl groups can now be identified electrochemically, utilizing a variety of electrodes and voltammetric techniques. In particular, in monoamine, the position of the hydroxyl groups might alter the sensing properties of a certain neurotransmitter. Numerous research studies using electrodes modified on their surfaces to better detect specific neurotransmitters when other interfering factors are present are reviewed to improve the precision of these measures. An investigation of the monoamine neurotransmitters at nanoscale using electrochemical methods is the primary goal of this review article. It will be used to determine which sort of electrode is ideal for this purpose. The use of carbon materials, such as graphite carbon fiber, carbon fiber micro-electrodes, glassy carbon, and 3D printed electrodes are only some of the electrodes with surface modifications that can be utilized for this purpose. Electrochemical methods for real-time detection and quantification of monoamine neurotransmitters in real samples at the nanomolar level are summarized in this paper. Full article
(This article belongs to the Special Issue Carbon-Based Composite Materials for Electrodes)
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