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Special Issue "Nanomaterials and Materials for Translational Research"

A special issue of Materials (ISSN 1996-1944).

Deadline for manuscript submissions: 31 July 2018

Special Issue Editors

Guest Editor
Prof. Dr. Carlos Lodeiro

BIOSCOPE research group, LAQV-REQUIMTE, Chemistry Department, FCT-University NOVA of Lisbon, Lisbon, Portugal
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Interests: fluorescent chemosensors; colorimetric probes; nanoparticles; nanoproteomics; nanocomposites; smart materials
Guest Editor
Prof. Dr. Jose Luis Capelo

BIOSCOPE research group, LAQV-REQUIMTE, Chemistry Department, FCT-University NOVA of Lisbon, Lisbon, Portugal
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Interests: proteomics; phosphoproteomics; biomarker discovery; fluorescent chemosensors; colorimetric devices; environmental studies
Guest Editor
Dr. Javier Fernandez Lodeiro

BIOSCOPE research group, LAQV-REQUIMTE, Chemistry Department, FCT-University NOVA of Lisbon, Lisbon, Portugal
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Interests: fuorescent nanosensors; colorimetric probes; metallic nanoparticles; functional nano-materials
Guest Editor
Dr. Elisabete Oliveira

Chemistry Department, REQUIMTE, FCT-University NOVA of Lisbon
Website | E-Mail
Interests: mesoporous nanoparticles; nanoparticles; quantum dots; cancer research

Special Issue Information

Dear Colleagues,

We are proud to announce this Special Issue, “Nanomaterials and Materials for Translational Research”, in Materials (MDPI Editorial; IF: 2.654) devoted to the 3rd International Symposium on Nanoparticles, Nanomaterials and Applications (3rdISN2A-2018). (http://www.isn2a2018.com/)

The conference will be held in Costa de Caparica, Portugal, 22–25 January, 2018. This Special Issue will select excellent papers from the oral (plenary, keynotes, and regular talks) and posters participations, and covers a very wide range of fields in materials and nanomaterials applied in translational research, focusing in environmental, toxicological, and bio-medical applications. We invite investigators to contribute original research articles, as well as review articles, to this Special Issue.

Prof. Carlos Lodeiro
Prof. Jose Luis Capelo
Dr. Javier Fernandez Lodeiro
Dr. Elisabete Oliveira
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 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. Materials is an international peer-reviewed open access monthly 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 1600 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.

Published Papers (3 papers)

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Research

Open AccessArticle Effects of Prolonged Silver Nanoparticle Exposure on the Contextual Cognition and Behavior of Mammals
Materials 2018, 11(4), 558; https://doi.org/10.3390/ma11040558
Received: 19 March 2018 / Revised: 31 March 2018 / Accepted: 3 April 2018 / Published: 5 April 2018
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Abstract
Silver nanoparticles have been widely used in the lighting and food industries, in medicine, and in pharmaceutics as an antiseptic agent. Recent research demonstrates that, after prolonged oral administration, silver nanoparticles may cross the blood-brain barrier and accumulate in the brain in rather
[...] Read more.
Silver nanoparticles have been widely used in the lighting and food industries, in medicine, and in pharmaceutics as an antiseptic agent. Recent research demonstrates that, after prolonged oral administration, silver nanoparticles may cross the blood-brain barrier and accumulate in the brain in rather high amounts. In ex vivo experiments, it has also been shown that silver nanoparticles demonstrate neurotoxicity. The objective of this work was to answer the questions whether silver nanoparticles change cognitive and behavioral functions of mammals after prolonged administration if silver nanoparticles have accumulated in the brain. C57Bl/6 male mice were orally exposed to PVP-coated silver nanoparticles daily for 30, 60, 120 and 180 days. Control mice were exposed to distilled water. After that they were tested in the Open Field, Elevated Plus Maze, Light-Dark Box and contextual fear conditioning task. The data have shown that the experimental mice went through three periods of switching in the behavior caused by adaptation to the toxic silver nanoparticles: anxiety, appearance of research instinct and impairment of long-term memory. This provides evidence of the hazardous effect of silver nanoparticles, which appears after long periods of silver nanoparticle oral administration. Full article
(This article belongs to the Special Issue Nanomaterials and Materials for Translational Research)
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Graphical abstract

Open AccessArticle New Pyrazolium Salts as a Support for Ionic Liquid Crystals and Ionic Conductors
Materials 2018, 11(4), 548; https://doi.org/10.3390/ma11040548
Received: 20 February 2018 / Revised: 21 March 2018 / Accepted: 28 March 2018 / Published: 3 April 2018
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Abstract
Ionic liquid crystals (ILCs) are a class of materials that combine the properties of liquid crystals (LCs) and ionic liquids (ILs). This type of materials is directed towards properties such as conductivity in ordered systems at different temperatures. In this work, we synthesize
[...] Read more.
Ionic liquid crystals (ILCs) are a class of materials that combine the properties of liquid crystals (LCs) and ionic liquids (ILs). This type of materials is directed towards properties such as conductivity in ordered systems at different temperatures. In this work, we synthesize five new families of ILCs containing symmetrical and unsymmetrical substituted pyrazolium cations, with different alkyl long-chains, and anions such as Cl, BF4, ReO4, p-CH3-6H4SO3 (PTS) and CF3SO3 (OTf). We study their thermal behavior by polarized light optical microscopy (POM) and differential scanning calorimetry (DSC). All of them, except those with OTf as counteranion, show thermotropic mesomorphism. The observations by POM reveal textures of lamellar mesophases. Those agree with the arrangement observed in the X-ray crystal structure of [H2pzR(4),R(4)][ReO4]. The nature of the mesophases is also confirmed by variable temperature powder X-ray diffraction. On the other hand, the study of the dielectric properties at variable temperature in mesomorphic (Cl and BF4) and non-mesomorphic (OTf) salts indicates that the supramolecular arrangement of the mesophase favors a greater ionic mobility and therefore ionic conductivity. Full article
(This article belongs to the Special Issue Nanomaterials and Materials for Translational Research)
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Graphical abstract

Open AccessArticle Application of Silver Nanostructures Synthesized by Cold Atmospheric Pressure Plasma for Inactivation of Bacterial Phytopathogens from the Genera Dickeya and Pectobacterium
Materials 2018, 11(3), 331; https://doi.org/10.3390/ma11030331
Received: 11 January 2018 / Revised: 14 February 2018 / Accepted: 16 February 2018 / Published: 25 February 2018
Cited by 1 | PDF Full-text (3640 KB) | HTML Full-text | XML Full-text
Abstract
Pectinolytic bacteria are responsible for significant economic losses by causing diseases on numerous plants. New methods are required to control and limit their spread. One possibility is the application of silver nanoparticles (AgNPs) that exhibit well-established antibacterial properties. Here, we synthesized AgNPs, stabilized
[...] Read more.
Pectinolytic bacteria are responsible for significant economic losses by causing diseases on numerous plants. New methods are required to control and limit their spread. One possibility is the application of silver nanoparticles (AgNPs) that exhibit well-established antibacterial properties. Here, we synthesized AgNPs, stabilized by pectins (PEC) or sodium dodecyl sulphate (SDS), using a direct current atmospheric pressure glow discharge (dc-APGD) generated in an open-to-air and continuous-flow reaction-discharge system. Characterization of the PEC-AgNPs and SDS-AgNPs with UV/Vis absorption spectroscopy, transmission electron microscopy, energy dispersive X-ray spectroscopy, and selected area electron diffraction revealed the production of spherical, well dispersed, and face cubic centered crystalline AgNPs, with average sizes of 9.33 ± 3.37 nm and 28.3 ± 11.7 nm, respectively. Attenuated total reflection-Fourier transformation infrared spectroscopy supported the functionalization of the nanostructures by PEC and SDS. Antibacterial activity of the AgNPs was tested against Dickeya spp. and Pectobacterium spp. strains. Both PEC-AgNPs and SDS-AgNPs displayed bactericidal activity against all of the tested isolates, with minimum inhibitory concentrations of 5.5 mg∙L−1 and 0.75–3 mg∙L−1, respectively. The collected results suggest that the dc-APGD reaction-discharge system can be applied for the production of defined AgNPs with strong antibacterial properties, which may be further applied in plant disease management. Full article
(This article belongs to the Special Issue Nanomaterials and Materials for Translational Research)
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