Special Issue "Carbon Nanotube Sensors"

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

Deadline for manuscript submissions: 15 November 2018

Special Issue Editor

Guest Editor
Dr. Filippo Giubileo

CNR-SPIN, via Giovanni Paolo II, n.132, 84084 Fisciano (SA), Italy
Website | E-Mail
Phone: +39 089 969329
Fax: +39 089 969658
Interests: graphene; 2D materials; electronic properties; field effect transistors; photodetectors; contact resistance; field emission from nanostructures; superconducting materials and heterostructures; tunneling spectroscopy; proximity effect; Andreev reflection; Josephson effect; STM; point contact spectroscopy; ferromagnet/superconductor interfaces

Special Issue Information

Dear Colleagues,

Since their discovery in 1991, carbon nanotubes (CNTs) have attracted enormous attention due to their extraordinary electronic properties, their high surface-to-volume ratios and their excellent mechanical properties. The development of CNT-based sensors is also necessarily based on fundamental knowledge of the structure/property relationship. Moreover, supporting substrates/platforms can contribute to enhanced detection performance. Several aspects are relevant to CNT property exploitation, such as efficient and controlled growth (on desired substrates), control of alignment, dispersion of CNTs in solution or matrix, durability of sensor, scalability, etc.

The aim of this Special Issue is to collect recent activities about the fabrication, characterization and modelling of CNT-based sensors and actuators. Potential topics include, but are not limited to:

  • Synthesis of high quality CNTs for sensing applications
  • Design, fabrication, and characterization of CNT-based sensors
  • CNT field effect transistors
  • Metal contacts on CNTs
  • Composite materials
  • Electrochemical sensors
  • Biosensors and chemical sensors
  • Gas sensors
  • Strain and pressure sensors
  • Flow sensors
  • Mass sensors and pH sensors
Dr. Filippo Giubileo
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 papers will be 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. Chemosensors is an international peer-reviewed open access quarterly 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 350 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

  • CNT synthesis
  • Field effect transistor
  • Contact resistance
  • Composite materials
  • Sensor design and characterization
  • Electrochemical sensors
  • Biosensors
  • Chemical sensors
  • Gas sensors
  • Strain sensors
  • Pressure sensors
  • Flow sensors
  • Mass sensors
  • pH sensors

Published Papers (2 papers)

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Research

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Open AccessArticle Characterization of a Novel Polypyrrole (PPy) Conductive Polymer Coated Patterned Vertical CNT (pvCNT) Dry ECG Electrode
Chemosensors 2018, 6(3), 27; https://doi.org/10.3390/chemosensors6030027
Received: 13 June 2018 / Revised: 6 July 2018 / Accepted: 10 July 2018 / Published: 17 July 2018
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Abstract
Conventional electrode-based technologies, such as the electrocardiogram (ECG), capture physiological signals using an electrolyte solution or gel that evaporates shortly after exposure, resulting in a decrease in the quality of the signal. Previously, we reported a novel dry impedimetric electrode using patterned vertically-aligned
[...] Read more.
Conventional electrode-based technologies, such as the electrocardiogram (ECG), capture physiological signals using an electrolyte solution or gel that evaporates shortly after exposure, resulting in a decrease in the quality of the signal. Previously, we reported a novel dry impedimetric electrode using patterned vertically-aligned Carbon NanoTubes (pvCNT) for biopotential measurement applications. The mechanical adhesion strength of the pvCNT electrode to the substrate was weak, hence, we have improved this electrode using a thin coating of the conductive polymer polypyrrole (PPy) that strengthens its mechanical properties. Multiwall CNTs were grown vertically on a circular stainless-steel disc (⌀ = 10 mm) substrate of 50 µm thickness forming patterned pillars on a square base (100 µm × 100 µm) with an inter-pillar spacing of 200 µm and height up to 1.5 mm. The PPy coating procedure involves applying 10 µL of PPy mixed with 70% ethyl alcohol solution and rapid drying at 300 °C using a hot air gun at a distance of 10 cm. A comparative study demonstrated that the coated pvCNT had higher impedance compared to a non-coated pvCNT but lower impedance compared to the standard gel electrode. The PPy-coated pvCNT had comparable signal capture quality but stronger mechanical adhesion to the substrate. Full article
(This article belongs to the Special Issue Carbon Nanotube Sensors)
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Other

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Open AccessLetter Gold Nanoparticle Conjugated Water Soluble Multiwall Carbon Nanotubes
Chemosensors 2018, 6(3), 36; https://doi.org/10.3390/chemosensors6030036
Received: 8 July 2018 / Revised: 27 August 2018 / Accepted: 29 August 2018 / Published: 1 September 2018
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Abstract
The poor solubility and dispersibility of carbon nanotubes in both aqueous and organic solvents restrict their applications in biological science. Herein, a simple and cheap method for synthesizing and purification of water soluble multiwall carbon nanotubes from coal combustion fly ash and characterization
[...] Read more.
The poor solubility and dispersibility of carbon nanotubes in both aqueous and organic solvents restrict their applications in biological science. Herein, a simple and cheap method for synthesizing and purification of water soluble multiwall carbon nanotubes from coal combustion fly ash and characterization of this water soluble multiwall carbon nanotubes after conjugation with gold nanoparticles has been described. Full article
(This article belongs to the Special Issue Carbon Nanotube Sensors)
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Planned Papers

The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.

Planned Paper 1:

Review

Advances on sensors based on Carbon nanotubes

Luca Camilli and Maurizio Passacantando

Abstract: Carbon nanotubes have been attracting considerable interest among material scientists, physicists, chemists and engineers for almost 30 years. Owing to their high aspect ratio, coupled with remarkable mechanical, electronic and thermal properties, carbon nanotubes have found application in diverse fields. In this review, we will cover the work on carbon nanotubes used for sensing applications. In particular, we will see examples where carbon nanotubes act as main players in devices sensing biomolecules, gas, light or pressure changes. Furthermore, we will discuss how to improve the performance of carbon nanotube-based sensors after their proper modification.

Planned paper 2:

Electrochemically prepared unzipped single walled carbon nanotubes-MnO2 nanostructure composites for hydrogen peroxide and glucose sensing

A.B.M. ZAKARIA1, DANUTA LESZCZYNSKA2*

1Department of Chemistry and Biochemistry, Jackson State University, Jackson, MS 39217, USA

2Department of Civil and Environmental Engineering, and Interdisciplinary Center for Nanotoxicity, Jackson State University, Jackson, MS 39217, USA

Abstract: An amperometric hydrogen peroxide and glucose biosensors based on unzipped carbon nanotubes modified glassy carbon electrode (GCE) has been successfully fabricated via a facile electrochemical oxidative method. In this work, we investigated the feasibility of this new form of carbon nanomaterial as substrate electrode material for fabricating sensitive platform for H2O2 and glucose sensors. For this purpose, the MnO2/unzipped single walled carbon nanotubes (SWCNTs) film was synthesized by the cyclic voltammetry method. The developed sensing film MnO2/unzipped SWCNTs/GCE displayed satisfactory analytical performance toward H2O2 including a wide linear range of 2.0 ×10-6 to 5.0 × 10-3 M with detection limit 0.31 ×10-6 M (10.7ppb). This film was further applied for glucose sensing with linearity range of 0.01 to 1.2 mM with a correlation coefficient of 0.9822 in the physiological pH (7.4). This facile, fast, environment-friendly and economical preparation strategy of carbon nanomaterial based electrode material opens up the possibility of the developing high quality biocompatible hydrogen peroxide and glucose sensors.
Keywords: Hydrogen peroxide sensor, Glucose sensor, Cyclic voltammetry, Unzipped SWCNTs, Graphene nanoribbons’ Electrochemical method.

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