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Low Dimensional Functionalized Electrospun Nanostructured Materials: Synthesis, Applications and Technology

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A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Advanced Nanomaterials and Nanotechnology".

Deadline for manuscript submissions: closed (10 November 2023) | Viewed by 4444

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Special Issue Editors

Dr. Bernardo Gonçalves Almeida

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Guest Editor

Laboratory of Physics for Materials and Emergent Technologies (LaPMET), Physics Centre of Minho and Porto Universities (CFUM), 4710-057 Braga, Portugal
Interests: nanomaterials; nanotechnology; nanofibers; electrospinning; magnetic nanostructures; ferroelectric nanomaterials; multiferroic nano-composites; dielectrics and piezoelectrics; spintronics; energy harvesting; EMI shielding
Special Issues, Collections and Topics in MDPI journals

Dr. Etelvina de Matos Gomes

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Laboratory of Physics for Materials and Emergent Technologies (LaPMET), Physics Centre of Minho and Porto Universities (CFUM), 4710-057 Braga, Portugal
Interests: electrospinning; hybrid functional materials; biomaterials; nanocrystalline materials; organic and semi-organic crystals; piezoelectric materials; optical second harmonic generation; energy harvesting
Special Issues, Collections and Topics in MDPI journals

Dr. Rosa Maria Ferreira Baptista

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Guest Editor

Laboratory of Physics for Materials and Emergent Technologies (LaPMET), Physics Centre of Minho and Porto Universities (CFUM), 4710-057 Braga, Portugal
Interests: synthesis of novel donor-acceptor molecules and dipeptides; their functionalization into biopolymer fibers using the electrospinning technique; and the evaluation of their non-linear optical and energy harvesting properties
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue welcomes contributions devoted to the synthesis, applications and properties of novel low dimensional functionalized nanofibers produced by electrospinning. Electrospinning is a simple, low cost and versatile technique to produce polymer based fibers with diameters in the tens to a few hundred nanometers, allowing for the exploration of their high aspect ratio, high specific surface area and mechanical flexibility for practical applications.

In these electrospun nanofibers, a wide variety of functional inclusions can be incorporated, such as dopants, molecular groups, magnetic, piezoelectric and metallic nanoparticles, quantum dots, biomaterials and others. In this way, these composite nanofibers can be rendered active or responsive to a variety of magnetic, electric, optical, thermal, mechanical and environmental stimuli, considerably widening their applicability. Due to this, they have been proposed for incorporation in novel technologies and solutions for the electronics, photonics, energy, environmental, food, biomedical and other industries.

This Special Issue will emphasize recent theoretical and experimental advances covering the above topics. It will also aim to address and report novel low dimensional nanocomposite fiber materials and their synthesis methods, new functional and multifunctional nanofiber properties, as well as innovative applications that have been proposed or implemented from them in recent years.

Prof. Dr. Bernardo Gonçalves Almeida
Prof. Dr. Etelvina de Matos Gomes
Dr. Rosa Maria Ferreira Baptista
Guest Editors

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. Materials 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 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

low dimension functionalized nanofibers
electrospinning synthesis methods
nanofiber magnetic, electric, optical, photonic, chemical and other properties
electronic, optical, environmental, food, biomedical and other applications
energy harvesting
sensors and actuators
electromagnetic shielding
spintronics

Published Papers (2 papers)

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Research

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14 pages, 2787 KiB

Open AccessEditor’s ChoiceArticle

High Piezoelectric Output Voltage from Blue Fluorescent N,N-Dimethyl-4-nitroaniline Nano Crystals in Poly-L-Lactic Acid Electrospun Fibers

by Rosa M. F. Baptista, Bruna Silva, João Oliveira, Vahideh B. Isfahani, Bernardo Almeida, Mário R. Pereira, Nuno Cerca, Cidália Castro, Pedro V. Rodrigues, Ana Machado, Michael Belsley and Etelvina de Matos Gomes

Materials 2022, 15(22), 7958; https://doi.org/10.3390/ma15227958 - 10 Nov 2022

Cited by 3 | Viewed by 2018

Abstract

N,N-dimethyl-4-nitroaniline is a piezoelectric organic superplastic and superelastic charge transfer molecular crystal that crystallizes in an acentric structure. Organic mechanical flexible crystals are of great importance as they stand between soft matter and inorganic crystals. Highly aligned poly-l-lactic acid polymer microfibers with embedded N,N-dimethyl-4-nitroaniline nanocrystals are fabricated using the electrospinning technique, and their piezoelectric and optical properties are explored as hybrid systems. The composite fibers display an extraordinarily high piezoelectric output response, where for a small stress of 5.0 × 10³ Nm⁻², an effective piezoelectric voltage coefficient of g_eff = 4.1 VmN⁻¹ is obtained, which is one of the highest among piezoelectric polymers and organic lead perovskites. Mechanically, they exhibit an average increase of 67% in the Young modulus compared to polymer microfibers alone, reaching 55 MPa, while the tensile strength reaches 2.8 MPa. Furthermore, the fibers show solid-state blue fluorescence, important for emission applications, with a long lifetime decay (147 ns) lifetime decay. The present results show that nanocrystals from small organic molecules with luminescent, elastic and piezoelectric properties form a mechanically strong hybrid functional 2-dimensional array, promising for applications in energy harvesting through the piezoelectric effect and as solid-state blue emitters. Full article

(This article belongs to the Special Issue Low Dimensional Functionalized Electrospun Nanostructured Materials: Synthesis, Applications and Technology)

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Graphical abstract

Review

Jump to: Research

30 pages, 8908 KiB

Open AccessReview

Fabrication, Microstructures and Sensor Applications of Highly Ordered Electrospun Nanofibers: A Review

by Jing Chen, Fei Rong and Yibing Xie

Materials 2023, 16(9), 3310; https://doi.org/10.3390/ma16093310 - 23 Apr 2023

Cited by 6 | Viewed by 1655

Abstract

The review summarizes the fabrication, microstructures, and sensor applications of highly ordered electrospun nanofibers. In the traditional electrospinning process, electrospun nanofibers usually have disordered or random microstructures due to the chaotic oscillation of the electrospinning jet. Different electrospinning methods can be formed by introducing external forces, such as magnetic, electric, or mechanical forces, and ordered nanofibers can be collected. The microstructures of highly ordered nanofibers can be divided into three categories: uniaxially ordered nanofibers, biaxially ordered nanofibers and ordered scaffolds. The three microstructures are each characterized by being ordered in different dimensions. The regulation and control of the ordered microstructures can promote electrospun nanofibers’ mechanical and dielectric strength, surface area and chemical properties. Highly ordered electrospun nanofibers have more comprehensive applications than disordered nanofibers do in effect transistors, gas sensors, reinforced composite materials and tissue engineering. This review also intensively summarizes the applications of highly ordered nanofibers in the sensor field, such as pressure sensors, humidity sensors, strain sensors, gas sensors, and biosensors. Full article

(This article belongs to the Special Issue Low Dimensional Functionalized Electrospun Nanostructured Materials: Synthesis, Applications and Technology)

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