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Chemosensors
Special Issues
Carbon Nanotubes for Electrochemical Sensing: Sensors and Platforms
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Carbon Nanotubes for Electrochemical Sensing: Sensors and Platforms

A special issue of Chemosensors (ISSN 2227-9040). This special issue belongs to the section "Nanostructures for Chemical Sensing".

Deadline for manuscript submissions: closed (15 January 2025) | Viewed by 1783

Special Issue Editors

Dr. Eusebiu Ilarian Ionete

E-Mail Website
Guest Editor
National Research and Development Institute for Cryogenic and Isotopic Technologies—ICSI Rm. Vâlcea, Uzinei Street, No. 4, 240050 Ramnicu Valcea, Romania
Interests: sensors; carbon nanotubes; chemical sensors; temperature sensors; cryogenics; hydrogen storage
Dr. Cristiana Eugenia Ana Grigorescu

E-Mail Website
Guest Editor
Optospintronics Department, National Institute for Research and Development in Optoelectronics-INOE 2000, 409 Atomistilor, 077125 Magurele, Romania
Interests: spectral sensors; detection of disease; monitoring of treatment; real time assessment; guidance in surgery; laparoscopic surgery; reconstructive surgery; comparative diagnosis in animal and human patients; theranostics; nanostructured and nanoparticle-based sensors; light based sensors; ultrasound; sensors for food-borne diseases
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Carbon nanotubes (CNTs) have revolutionized the sensor field. By providing a high surface area and promoting ultra-fast electron transfer, CNTs have become indispensable in the advancement of novel sensors/biosensors. As support materials, they are functionalized with organic molecules, biocompounds and metallic elements, either by wrapping, physical adsorption or addition reactions, in order to improve the selectivity and sensibility of the sensor. Based on each of their properties, CNTs are suited for a wide range of applications: their mechanical properties make them ideal for pressure transducer and piezoelectric sensors; their high thermal conductivity is best suited for infrared sensors and thermometers; and their optical characteristics are applied in photodetectors. This Special Issue aims to gather all types of sensors based on CNTs to allow a birds-eye view of the field (through review papers) and to promote the most recent results on biomimetic-type sensors (through original articles).

Dr. Eusebiu Ilarian Ionete
Dr. Cristiana Eugenia Ana Grigorescu
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 2700 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

  • single/multilayers carbon nanotubes
  • electrochemical sensors
  • gas sensors
  • molecular imprinting process
  • e-tongue
  • electronic nose
  • electrochemical impedance spectroscopy
  • surface acoustic wave sensors
  • microelectromechanical system

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Published Papers (1 paper)

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Research

13 pages, 7211 KiB  
Article
Electrochemical Sensor for Cu(II) Based on Carbon Nanotubes Functionalized with a Rationally Designed Schiff Base
by Alejandro Tamborelli, Michael López Mujica, Gustavo Servetti, Diego Venegas-Yazigi, Patricio Hermosilla-Ibáñez, Pablo Dalmasso and Gustavo Rivas
Chemosensors 2025, 13(2), 35; https://doi.org/10.3390/chemosensors13020035 - 25 Jan 2025
Viewed by 826
Abstract
This work proposes a new strategy for the electrochemical quantification of Cu(II) using glassy carbon electrodes (GCEs) modified with a nanohybrid of multiwall carbon nanotubes (MWCNTs) non-covalently functionalized with a rationally designed Schiff base containing different groups (SB-dBA). The principle of sensing was [...] Read more.
This work proposes a new strategy for the electrochemical quantification of Cu(II) using glassy carbon electrodes (GCEs) modified with a nanohybrid of multiwall carbon nanotubes (MWCNTs) non-covalently functionalized with a rationally designed Schiff base containing different groups (SB-dBA). The principle of sensing was the complexation of Cu(II) by the Schiff base that supports the MWCNTs at the open-circuit potential, followed by a reduction step at −0.600 V and further linear sweep anodic stripping voltammetry (LSASV) in a 0.200 M acetate buffer solution of pH 5.00. The linear range goes from 10 to 200 μg L−1, with a sensitivity of (0.79 ± 0.07) µA L µg−1 (R2 = 0.991), a detection limit of 3.3 μg L−1, and a reproducibility of 8.0% for the same nanohybrid (nine electrodes) and 9.0% for four different nanohybrids. The proposed sensor was very selective for Cu(II) even in the presence of Pb(II), Fe(II), As(III), Cr(III), Cd(II), and Hg(II), and it was successfully used for the quantification of Cu(II) in different water samples (tap, groundwater, and river) without any pretreatment. Full article
(This article belongs to the Special Issue Carbon Nanotubes for Electrochemical Sensing: Sensors and Platforms)
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