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Applied Sciences
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Graphene Growth and Its Nanostructuring
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Graphene Growth and Its Nanostructuring

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Nanotechnology and Applied Nanosciences".

Deadline for manuscript submissions: closed (31 December 2021) | Viewed by 41449

Special Issue Editor

Dr. Hamid Hamedi

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Guest Editor
Fiber and Polymer science, North Carolina State University, Raleigh, NC, USA
Interests: graphene oxide applications in biomedical engineering and smart polymers

Special Issue Information

Dear colleagues

We are all currently experiencing an unprecedented situation which, among its numerous consequences, has also affected the way we work, by forcing laboratories around the world to shut down. Nevertheless, we believe this might also represent an opportunity to seek new collaborations and share our findings with the scientific community and the world.

It is in this spirit that the MDPI journal of Applied Sciences (IF: 2.217, ISSN 2076-3417) is currently running a Special Issue entitled “Graphene Growth and its Nanostructuring”. Hamid Hamedi is serving as the Guest Editor for this issue.

This Special Issue will cover a selection of original research and review articles related to graphene and nanostructuring, focusing primarily on the following topics:

  • Emerging of graphene and graphene oxide processing;
  • Graphene and biomedical engineering;
  • Graphene and smart polymers;
  • Graphene and biosensors;
  • Graphene and supercapacitors;
  • Environmental applications of graphene-based nanomaterials.

We look forward to receiving your contribution to this Special Issue, which we have no doubt will be as excellent as your previous work in the field.

Dr. Hamid Hamedi
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 submissions that pass pre-check are 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. Applied Sciences is an international peer-reviewed open access semimonthly 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 2400 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

  • graphene
  • graphene oxide
  • biosensors
  • smart polymers
  • biomedical engineering
  • supercapacitor

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Further information on MDPI's Special Issue polices can be found here.

Published Papers (7 papers)

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Research

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13 pages, 3555 KiB  
Article
Carbon Nanotube-Based Composite Filaments for 3D Printing of Structural and Conductive Elements
by Bartłomiej Podsiadły, Piotr Matuszewski, Andrzej Skalski and Marcin Słoma
Appl. Sci. 2021, 11(3), 1272; https://doi.org/10.3390/app11031272 - 30 Jan 2021
Cited by 42 | Viewed by 6169
Abstract
In this publication, we describe the process of fabrication and the analysis of the properties of nanocomposite filaments based on carbon nanotubes and acrylonitrile butadiene styrene (ABS) polymer for fused deposition modeling (FDM) additive manufacturing. Polymer granulate was mixed and extruded with a [...] Read more.
In this publication, we describe the process of fabrication and the analysis of the properties of nanocomposite filaments based on carbon nanotubes and acrylonitrile butadiene styrene (ABS) polymer for fused deposition modeling (FDM) additive manufacturing. Polymer granulate was mixed and extruded with a filling fraction of 0.99, 1.96, 4.76, 9.09 wt.% of CNTs (carbon nanotubes) to fabricate composite filaments with a diameter of 1.75 mm. Detailed mechanical and electrical investigations of printed test samples were performed. The results demonstrate that CNT content has a significant influence on mechanical properties and electrical conductivity of printed samples. Printed samples obtained from high CNT content composites exhibited an improvement in the tensile strength by 12.6%. Measurements of nanocomposites’ electrical properties exhibited non-linear relation between the supply voltage and measured sample resistivity. This effect can be attributed to the semiconductor nature of the CNT functional phase and the occurrence of a tunnelling effect in percolation network. Detailed I–V characteristics related to the amount of CNTs in the composite and the supply voltage influence are also presented. At a constant voltage value, the average resistivity of the printed elements is 2.5 Ωm for 4.76 wt.% CNT and 0.15 Ωm for 9.09 wt.% CNT, respectively. These results demonstrate that ABS/CNT composites are a promising functional material for FDM additive fabrication of structural elements, but also structural electronics and sensors. Full article
(This article belongs to the Special Issue Graphene Growth and Its Nanostructuring)
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15 pages, 1286 KiB  
Article
Multi-Element Determination of Toxic and Nutrient Elements by ICP-AES after Dispersive Solid-Phase Extraction with Modified Graphene Oxide
by Natalia Manousi, Eleni Deliyanni and George Zachariadis
Appl. Sci. 2020, 10(23), 8722; https://doi.org/10.3390/app10238722 - 5 Dec 2020
Cited by 8 | Viewed by 2633
Abstract
A novel graphene-oxide-derived material was synthesized after modification of graphene oxide with sodium hydroxide and used for the dispersive solid-phase extraction (d-SPE) of different elements (Pb, Cd, Ba, Zn, Cu and Ni) prior to their determination by inductively coupled plasma atomic emission spectrometry [...] Read more.
A novel graphene-oxide-derived material was synthesized after modification of graphene oxide with sodium hydroxide and used for the dispersive solid-phase extraction (d-SPE) of different elements (Pb, Cd, Ba, Zn, Cu and Ni) prior to their determination by inductively coupled plasma atomic emission spectrometry (ICP-AES). The prepared nanomaterial was characterized by X-ray diffraction (XRD), nitrogen adsorption, scanning electron microscopy (SEM), transmission electron microscopy (TEM) and Fourier transform infrared (FTIR) spectroscopy. Full factorial design and Derringer’s type desirability function were used for the optimization of the d-SPE procedure. Pareto charts illustrated the effects of each of the examined factors and their interactions on the determination of the elements. Under the optimum conditions, detection limits (LODs) for the elements ranged between 0.01 and 0.21 μg g−1, intra-day repeatability (n = 5) was lower than 1.9% and inter-day repeatability (n = 5 × 3) was lower than 4.7%. Relative recovery values ranged between 88.1 and 117.8%. The method was validated and successfully applied for the determination of trace elements in poultry, pork and beef samples from the local market. The proposed method is simple, rapid, sensitive and the novel sorbent can be used at least ten times. Full article
(This article belongs to the Special Issue Graphene Growth and Its Nanostructuring)
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Review

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15 pages, 19785 KiB  
Review
Chitosan/Graphene Oxide Composite Films and Their Biomedical and Drug Delivery Applications: A Review
by Sara Moradi, Hamid Hamedi, Alan E. Tonelli and Martin W. King
Appl. Sci. 2021, 11(17), 7776; https://doi.org/10.3390/app11177776 - 24 Aug 2021
Cited by 10 | Viewed by 5055
Abstract
The healing of wounds is still a challenging clinical problem for which an efficient and fast treatment is needed. Therefore, recent studies have created a new generation of wound dressings that can accelerate the wound healing process with minimal side effects. Chitosan, a [...] Read more.
The healing of wounds is still a challenging clinical problem for which an efficient and fast treatment is needed. Therefore, recent studies have created a new generation of wound dressings that can accelerate the wound healing process with minimal side effects. Chitosan, a natural biopolymer, is an attractive candidate for preparing biocompatible dressings. The biodegradability, non-toxicity, and antibacterial activities of chitosan have made it a promising biopolymer for treating wounds. Graphene oxide has also been considered by researchers as a non-toxic, inexpensive, and biocompatible material for wound healing applications. This review paper discusses the potential use of chitosan/graphene oxide composite films and their application in wound dressing and drug delivery systems. Full article
(This article belongs to the Special Issue Graphene Growth and Its Nanostructuring)
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17 pages, 3688 KiB  
Review
Applications of Graphene-Based Nanomaterials in Environmental Analysis
by Orfeas-Evangelos Plastiras, Eleni Deliyanni and Victoria Samanidou
Appl. Sci. 2021, 11(7), 3028; https://doi.org/10.3390/app11073028 - 29 Mar 2021
Cited by 18 | Viewed by 3806
Abstract
Sample preparation is an essential and preliminary procedure of most chemical analyses. Due to the sample diversity, the selection of appropriate adsorbents for the effective preparation and separation of different samples turned out to be important for the methods. By exploiting the rapid [...] Read more.
Sample preparation is an essential and preliminary procedure of most chemical analyses. Due to the sample diversity, the selection of appropriate adsorbents for the effective preparation and separation of different samples turned out to be important for the methods. By exploiting the rapid development of material science, some novel adsorption materials, especially graphene-based nanomaterials, have shown supremacy in sample pretreatment. In this review, a discussion between these nanomaterials will be made, as well as some basic information about their synthesis. The focus will be on the different environmental applications that use these materials. Full article
(This article belongs to the Special Issue Graphene Growth and Its Nanostructuring)
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15 pages, 4501 KiB  
Review
Recent Progress in Radio-Frequency Sensing Platforms with Graphene/Graphene Oxide for Wireless Health Care System
by Hee-Jo Lee
Appl. Sci. 2021, 11(5), 2291; https://doi.org/10.3390/app11052291 - 4 Mar 2021
Cited by 3 | Viewed by 10409
Abstract
In the past decade, graphene has been widely researched to improve or overcome the performance of conventional radio-frequency (RF) nanodevices and circuits. In recent years, novel RF bio and gas sensors based on graphene and its derivatives, graphene oxide (GO) and reduced graphene [...] Read more.
In the past decade, graphene has been widely researched to improve or overcome the performance of conventional radio-frequency (RF) nanodevices and circuits. In recent years, novel RF bio and gas sensors based on graphene and its derivatives, graphene oxide (GO) and reduced graphene oxide (rGO), have emerged as new RF sensing platforms using a wireless remote system. Although the sensing schemes are still immature, this review focuses on the recent trends and advances of graphene and GO (rGO)-based RF bio and gas sensors for a real-time and continuous wireless health care system. Full article
(This article belongs to the Special Issue Graphene Growth and Its Nanostructuring)
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28 pages, 8185 KiB  
Review
Novel Structures and Applications of Graphene-Based Semiconductor Photocatalysts: Faceted Particles, Photonic Crystals, Antimicrobial and Magnetic Properties
by Marcin Janczarek, Maya Endo-Kimura, Zhishun Wei, Zuzanna Bielan, Tharishinny R. Mogan, Tamer M. Khedr, Kunlei Wang, Agata Markowska-Szczupak and Ewa Kowalska
Appl. Sci. 2021, 11(5), 1982; https://doi.org/10.3390/app11051982 - 24 Feb 2021
Cited by 19 | Viewed by 3836
Abstract
Graphene, graphene oxide, reduced graphene oxide and their composites with various compounds/materials have high potential for substantial impact as cheap photocatalysts, which is essential to meet the demands of global activity, offering the advantage of utilizing “green” solar energy. Accordingly, graphene-based materials might [...] Read more.
Graphene, graphene oxide, reduced graphene oxide and their composites with various compounds/materials have high potential for substantial impact as cheap photocatalysts, which is essential to meet the demands of global activity, offering the advantage of utilizing “green” solar energy. Accordingly, graphene-based materials might help to reduce reliance on fossil fuel supplies and facile remediation routes to achieve clean environment and pure water. This review presents recent developments of graphene-based semiconductor photocatalysts, including novel composites with faceted particles, photonic crystals, and nanotubes/nanowires, where the enhancement of activity mechanism is associated with a synergistic effect resulting from the presence of graphene structure. Moreover, antimicrobial potential (highly needed these days), and facile recovery/reuse of photocatalysts by magnetic field have been addresses as very important issue for future commercialization. It is believed that graphene materials should be available soon in the market, especially because of constantly decreasing prices of graphene, vis response, excellent charge transfer ability, and thus high and broad photocatalytic activity against both organic pollutants and microorganisms. Full article
(This article belongs to the Special Issue Graphene Growth and Its Nanostructuring)
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21 pages, 1523 KiB  
Review
A Review on Recent Advancements of Graphene and Graphene-Related Materials in Biological Applications
by Federica Catania, Elena Marras, Mauro Giorcelli, Pravin Jagdale, Luca Lavagna, Alberto Tagliaferro and Mattia Bartoli
Appl. Sci. 2021, 11(2), 614; https://doi.org/10.3390/app11020614 - 10 Jan 2021
Cited by 87 | Viewed by 8568
Abstract
Graphene is the most outstanding material among the new nanostructured carbonaceous species discovered and produced. Graphene’s astonishing properties (i.e., electronic conductivity, mechanical robustness, large surface area) have led to a deep change in the material science field. In this review, after a brief [...] Read more.
Graphene is the most outstanding material among the new nanostructured carbonaceous species discovered and produced. Graphene’s astonishing properties (i.e., electronic conductivity, mechanical robustness, large surface area) have led to a deep change in the material science field. In this review, after a brief overview of the main characteristics of graphene and related materials, we present an extensive overview of the most recent achievements in biological uses of graphene and related materials. Full article
(This article belongs to the Special Issue Graphene Growth and Its Nanostructuring)
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