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Nanomaterials
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Visionary Development and Synthesis of Nanoparticles: Optical, Electronics, Sensing and...
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Visionary Development and Synthesis of Nanoparticles: Optical, Electronics, Sensing and Bio Applications

A special issue of Nanomaterials (ISSN 2079-4991).

Deadline for manuscript submissions: closed (30 June 2022) | Viewed by 3814

Special Issue Editors

Prof. Dr. Carlos Lodeiro

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Guest Editor
Inorganic Chemistry and NanoChemistry, NOVA School Of Science And Technology, FCT NOVA, NOVA University Lisbon, 2829-516 Caparica, Portugal
Interests: metallic nanoparticles; nanoproteomics; imaging; silica nanoparticles; catalysis
Special Issues, Collections and Topics in MDPI journals
Dr. Hugo Miguel Santos

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Guest Editor
LAQV-REQUIMTE—Chemistry Department, NOVA School of Science and Technology, NOVA University Lisbon, Caparica, Portugal
Interests: nanoproteomics; biomarker discovery; personalised medicine; mass spectrometry
Special Issues, Collections and Topics in MDPI journals
Dr. Javier Fernandez Lodeiro

E-Mail Website
Guest Editor
LAQV-REQUIMTE—Chemistry Department, NOVA School of Science and Technology, NOVA University Lisbon, Caparica, Portugal
Interests: chalcogenide materials; green methodologies; iron and nobel nanoparticles; rods and quantum dots
Special Issues, Collections and Topics in MDPI journals
Dr. Elisabete Oliveira

E-Mail Website
Guest Editor
LAQV-REQUIMTE—NOVA School of Science and Technology, FCT NOVA, NOVA University Lisbon, 2829-516 Caparica, Portugal
Interests: silica nanoparticles; silica QDs; mesoporous materials; drug delivery; antibiotic resistance studies
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear colleagues,

We are happy to announce a Special Issue of the journal Nanomaterials, devoted to the “Visionary Development and Synthesis of Nanoparticles: Optical, Electronic, Sensing and Bio Applications” (IF: 5.076) (https://www.mdpi.com/journal/nanomaterials).

The Special Issue will cover original research and review articles from interested researchers as well as the 5th International Symposium on Nanoparticles, Nanomaterials and Applications (5thISN2A-2022) (http://www.isn2a2022.com/), all submissions able to access a 25% discount off the regular fees of Nanomaterials.

Papers covering a wide range of fields regarding nanomaterials applied in optical, electronic, sensing and bio systems, focusing on environmental, toxicological, imaging, drug delivery, new sustainable synthetic method and biomedical applications are welcome.

Prof. Dr. Carlos Lodeiro
Dr. Hugo Miguel Santos
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 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. Nanomaterials 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 2900 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

  • metallic nanoparticles
  • mesoporous materials
  • environmental applications
  • biomedical studies
  • optical and electronic applications

Published Papers (3 papers)

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Research

7 pages, 6085 KiB  
Communication
Polyacrylic Acid-Ca(Eu) Nanoclusters as a Luminescence Sensor of Phosphate Ion
by Chunhui Song, Qifa Song, Ziyou Ding and Yingchao Han
Nanomaterials 2022, 12(14), 2398; https://doi.org/10.3390/nano12142398 - 14 Jul 2022
Cited by 3 | Viewed by 1082
Abstract
In this study, we synthesized polyacrylic acid (PAA)-Ca (Eu) nanoclusters as a luminescence sensor of phosphate ion by a complex method, and we aimed to achieve the quantitative detection of PO43− based on the sensitivity of the charge transfer band of [...] Read more.
In this study, we synthesized polyacrylic acid (PAA)-Ca (Eu) nanoclusters as a luminescence sensor of phosphate ion by a complex method, and we aimed to achieve the quantitative detection of PO43− based on the sensitivity of the charge transfer band of Eu3+ to anionic ligand. The resulting PAA-Ca(Eu) nanoclusters showed a well-dispersed and a dot-like morphology, with an ultra-small diameter (the average size of 2.17 nm) under high resolution transmission electron microscopy(HRTEM) observation. A dynamic light scattering particle size analyzer (DLS) showed a hydrodynamic size of 2.39 nm. The (PAA)-Ca (Eu) nanoclusters as a luminescence sensor showed a significantly higher sensitivity for PO43− than other anions (CO32−, SiO32−, SO42−, SO32−, Br−, Cl−, F−). The luminescence intensity displayed a linear increase (y = 19.32x + 74.75, R2 > 0.999) in a PO43 concentration range (0–10 mM) with the concentration of PO43− increase, and the limit of detection was 0.023 mM. The results showed good recovery rates and low relative standard deviations. These (PAA)-Ca (Eu) nanoclusters are hopeful to become a luminescence sensor for quantitatively detecting PO43−. Full article
(This article belongs to the Special Issue Visionary Development and Synthesis of Nanoparticles: Optical, Electronics, Sensing and Bio Applications)
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22 pages, 2015 KiB  
Article
Validation of a Standard Luminescence Method for the Fast Determination of the Antimicrobial Activity of Nanoparticles in Escherichia coli
by Gonçalo A. Marcelo, Joana Galhano, Maria Paula Duarte, José Luis Capelo-Martínez, Carlos Lodeiro and Elisabete Oliveira
Nanomaterials 2022, 12(13), 2164; https://doi.org/10.3390/nano12132164 - 23 Jun 2022
Cited by 1 | Viewed by 1769
Abstract
The use of nanoparticles in multiple industries has raised concerned voices about the assessment of their toxicity/antimicrobial activity and the development of standardized handling protocols. Issues emerge during the antimicrobial assaying of multiple cargo, colorimetric, colloidal nanoformulations, as standard protocols often rely on [...] Read more.
The use of nanoparticles in multiple industries has raised concerned voices about the assessment of their toxicity/antimicrobial activity and the development of standardized handling protocols. Issues emerge during the antimicrobial assaying of multiple cargo, colorimetric, colloidal nanoformulations, as standard protocols often rely on visual evaluations, or optical density (OD) measurements, leading to high variance inhibitory concentrations (MIC). Thus, a fast, luminescence-based assay for the effective assessment of the antimicrobial activity of nanoparticles is herein reported, using the bioluminescence of an in-house E. coli ATCC® 8739TM construct with the pMV306G13 + Lux plasmid (E. coli Lux). The new strain’s sensitivity to ofloxacin as a standard antibiotic was confirmed, and the methodology robustness verified against multiple nanoparticles and colorimetric drugs. The reduction of incubation from 24 to only 8 h, and the sole use of luminescence (LUX490) to accurately determine and distinguish MIC50 and MIC90, are two main advantages of the method. By discarding OD measurements, one can avoid turbidity and color interferences when calculating bacterial growth. This approach is an important tool that contributes to the standardization of methods, reducing samples’ background interference and focusing on luminescence as a direct probe for bacterial metabolic activity, growth and, most importantly, the correct assessment of nanomaterials’ antimicrobial activity. Full article
(This article belongs to the Special Issue Visionary Development and Synthesis of Nanoparticles: Optical, Electronics, Sensing and Bio Applications)
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10 pages, 3700 KiB  
Article
High Quality TaS2 Nanosheet SPR Biosensors Improved Sensitivity and the Experimental Demonstration for the Detection of Hg2+
by Yue Jia, Yunlong Liao and Houzhi Cai
Nanomaterials 2022, 12(12), 2075; https://doi.org/10.3390/nano12122075 - 16 Jun 2022
Cited by 9 | Viewed by 1555
Abstract
TaS2 as transition metal dichalcogenide (TMD) two-dimensional (2D) material has sufficient unstructured bonds and large inter-layer spacing, which highly supports transporting and absorbing mercury ions. The structural characterizations and simulation data show that an SPR sensor with high sensitivity can be obtained [...] Read more.
TaS2 as transition metal dichalcogenide (TMD) two-dimensional (2D) material has sufficient unstructured bonds and large inter-layer spacing, which highly supports transporting and absorbing mercury ions. The structural characterizations and simulation data show that an SPR sensor with high sensitivity can be obtained with a TaS2 material-modified sensitive layer. In this paper, the role of TaS2 nanoparticles in an SPR sensor was explored by simulation and experiment, and the TaS2 layer in an SPR sensor was characterized by SEM, elemental mapping, XPS, and other methods. The application range of structured TaS2 nanoparticles is explored, these TaS2 based sensors were applied to detect Hg2+ ions at a detection limit approaching 1 pM, and an innovative idea for designing highly sensitive detection techniques is provided. Full article
(This article belongs to the Special Issue Visionary Development and Synthesis of Nanoparticles: Optical, Electronics, Sensing and Bio Applications)
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