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Synthesis and Processing of Advanced Nanostructured Materials for a Sustainable Future

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Molecular Nanoscience".

Deadline for manuscript submissions: 30 September 2024 | Viewed by 1350

Special Issue Editors

Dr. Cezar Ionuț Spînu

E-Mail Website
Guest Editor
Department of Chemistry, Faculty of Sciences, University of Craiova, 200478 Craiova, Romania
Interests: biomaterials; materials for energy; catalysts; superconductors; semiconductors; smart materials; thin films
Dr. Nicoleta Cioaterǎ

E-Mail Website
Guest Editor
Department of Chemistry, Faculty of Sciences, University of Craiova, 200585 Craiova, Romania
Interests: biomaterials; materials for energy; catalysts; superconductors; semiconductors; smart materials; thin films

Special Issue Information

Dear Colleagues,

Nowadays, there is increased interest in the development of new materials with improved properties to minimize the negative impact of modern technologies on the environment and health. In this context, researchers must provide innovative solutions to the challenges of modern society.

This Special Issue uses an interdisciplinary approach to study nanostructured materials, covering a wide range of chemical, physical, biological and engineering sciences. The design, synthesis, processing, modelling and testing of advanced materials will be addressed, in order to evidence the complex relationship between their composition, structure, morphology and properties. Topics include ceramics, metals, carbon-based materials, composites, glasses, polymers, etc., for environmental, energy and life science applications. Original research papers and reviews are welcome.

Dr. Cezar Ionuț Spînu
Dr. Nicoleta Cioaterǎ
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. International Journal of Molecular Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. There is an Article Processing Charge (APC) for publication in this open access journal. For details about the APC please see here. 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

  • biomaterials
  • materials for energy
  • catalysts
  • superconductors
  • semiconductors
  • smart materials
  • thin films

Published Papers (2 papers)

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Research

23 pages, 4975 KiB  
Article
Hybrid Materials Obtained by Immobilization of Biosynthesized Ag Nanoparticles with Antioxidant and Antimicrobial Activity
by Gabriela Petcu, Elena Madalina Ciobanu, Gabriela Paun, Elena Neagu, Adriana Baran, Bogdan Trica, Andreea Neacsu, Irina Atkinson, Razvan Bucuresteanu, Alexandra Badaluta, Lia Mara Ditu and Viorica Parvulescu
Int. J. Mol. Sci. 2024, 25(7), 4003; https://doi.org/10.3390/ijms25074003 - 03 Apr 2024
Viewed by 525
Abstract
Ag nanoparticles (AgNPs) were biosynthesized using sage (Salvia officinalis L.) extract. The obtained nanoparticles were supported on SBA-15 mesoporous silica (S), before and after immobilization of 10% TiO2 (Degussa-P25, STp; commercial rutile, STr; and silica synthesized from Ti butoxide, STb). The [...] Read more.
Ag nanoparticles (AgNPs) were biosynthesized using sage (Salvia officinalis L.) extract. The obtained nanoparticles were supported on SBA-15 mesoporous silica (S), before and after immobilization of 10% TiO2 (Degussa-P25, STp; commercial rutile, STr; and silica synthesized from Ti butoxide, STb). The formation of AgNPs was confirmed by X-ray diffraction. The plasmon resonance effect, evidenced by UV-Vis spectra, was preserved after immobilization only for the sample supported on STb. The immobilization and dispersion properties of AgNPs on supports were evidenced by TEM microscopy, energy-dispersive X-rays, dynamic light scattering, photoluminescence and FT-IR spectroscopy. The antioxidant activity of the supported samples significantly exceeded that of the sage extract or AgNPs. Antimicrobial tests were carried out, in conditions of darkness and white light, on Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli and Candida albicans. Higher antimicrobial activity was evident for SAg and STbAg samples. White light increased antibacterial activity in the case of Escherichia coli (E. coli) and Pseudomonas aeruginosa (P. aeruginosa). In the first case, antibacterial activity increased for both supported and unsupported AgNPs, while in the second one, the activity increased only for SAg and STbAg samples. The proposed antibacterial mechanism shows the effect of AgNPs and Ag+ ions on bacteria in dark and light conditions. Full article
(This article belongs to the Special Issue Synthesis and Processing of Advanced Nanostructured Materials for a Sustainable Future)
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14 pages, 5614 KiB  
Article
Anchoring of Copper(II)–Schiff Base Complex in SBA-15 Matrix as Efficient Oxidation and Biomimetic Catalyst
by Mihaela Mureseanu, Irina Bleotu, Cezar-Ionuț Spînu and Nicoleta Cioatera
Int. J. Mol. Sci. 2024, 25(2), 1094; https://doi.org/10.3390/ijms25021094 - 16 Jan 2024
Viewed by 533
Abstract
A new mononuclear Cu(II) complex [Cu(L2)(H2O)2], where L is the Schiff base 2-[2-(3-bromopropoxy)benzylideneamino] benzoic acid, was synthesized and covalently anchored onto an amino-functionalized SBA-15 mesoporous silica in order to obtain an efficient heterogeneous catalyst. The elemental, structural, [...] Read more.
A new mononuclear Cu(II) complex [Cu(L2)(H2O)2], where L is the Schiff base 2-[2-(3-bromopropoxy)benzylideneamino] benzoic acid, was synthesized and covalently anchored onto an amino-functionalized SBA-15 mesoporous silica in order to obtain an efficient heterogeneous catalyst. The elemental, structural, textural and morphological characterization confirmed the coordination of the central Cu(II) ion with two ligands and two H2O molecules in the synthesized complex and its successful immobilization into the inner pore surface of the NH2-functionalized support without the loss of the mesoporous structure. The catalytic activity of the free or immobilized Cu(II) complex was tested in the oxidation of cyclohexene with H2O2 under an air atmosphere and the dismutation reaction of the superoxide radical anions with very good results. In addition, catalyst reuse tests claim its suitability in alkene oxidation processes or as a biomimetic catalyst. Full article
(This article belongs to the Special Issue Synthesis and Processing of Advanced Nanostructured Materials for a Sustainable Future)
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