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Molecules
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Research on Nanostructured Materials 2.0
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Research on Nanostructured Materials 2.0

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Materials Chemistry".

Deadline for manuscript submissions: closed (31 December 2023) | Viewed by 6314

Special Issue Editors

Prof. Dr. Lucian Baia

E-Mail Website
Guest Editor
Faculty of Physics, Institute of Interdisciplinary Research in Bio-Nano-Sciences, Babes-Bolyai University, Cluj-Napoca, Romania
Interests: biomaterials; photocatalysts and graphene based materials
Special Issues, Collections and Topics in MDPI journals
Dr. Klara Magyari

E-Mail Website
Guest Editor
1. Institute of Interdisciplinary Research in Bio-Nano-Sciences, Babes-Bolyai University, Cluj-Napoca, Romania
2. Department of Applied and Environmental Chemistry, Institute of Chemistry, University of Szeged, Szeged, Hungary
Interests: biomaterials; tissue engineering; bioactive glasses; biopolymers
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Jin Won (Maria) Seo

E-Mail Website
Guest Editor
Department of Materials Engineering, KU Leuven, Leuven, Belgium
Interests: carbon nanomaterials; oxide nanostructures; electron microscopy
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

There is currently a particular interest in understanding the properties of nanostructured materials, with the aim of understanding their particularities and improving their performances. In this respect, this Special Issue aims to cover recent progress and trends in both fundamental and applied research on various types of nanostructured materials. Contributions to this Special Issue can be in the form of full research articles, short communications, and reviews focusing on understanding the role and influence of molecules used for obtaining nanostructured materials, as well as the processes and phenomena that occur when homogeneous or heterogeneous nanostructured materials are involved. A special interest is focused on the evaluation of the phenomena that appear during the synthesis of the materials, or those on which the usefulness of the materials is based. Research that presents the applications of materials in various domains (bio-medical, drug delivery, (photo)catalysis, sensors, supercapacitors, batteries, fire retardants, etc.) is particularly important, as it helps to clarify the role and influence of the molecules and compounds involved during the preparation on the improvements of the materials’ performances.

Submissions are welcome on topics including but not limited to those listed below:

  • Electronic, photonic and magnetic materials;
  • Materials for energy and environment;
  • Advanced material characterization and modelling;
  • Nanomaterials and characterization;
  • Biomaterials and soft materials;
  • Structural and (multi)functional materials;
  • Surfaces and interfaces in nanostructures and nanoarchitectures.

Prof. Dr. Lucian Baia
Dr. Klara Magyari
Prof. Dr. Jin Won (Maria) Seo
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. Molecules 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 2700 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

  • electronic materials
  • photonic materials 
  • magnetic materials 
  • sensors
  • advanced materials 
  • nanomaterials
  • characterization
  • functional materials
  • modelling
  • surface and interfaces
  • material applications

Published Papers (4 papers)

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Research

15 pages, 4606 KiB  
Article
Donor–Acceptor–Donor 1H-Benzo[d]imidazole Derivatives as Optical Waveguides
by Carlos Tardío, Javier Álvarez Conde, Ana María Rodríguez, Pilar Prieto, Antonio de la Hoz, Juan Cabanillas-González and Iván Torres-Moya
Molecules 2023, 28(12), 4631; https://doi.org/10.3390/molecules28124631 - 08 Jun 2023
Cited by 1 | Viewed by 938
Abstract
A new series of donor–acceptor–donor (D–A–D) structures derived from arylethynyl 1H-benzo[d]imidazole was synthesized and processed into single crystals with the goal of testing such crystals’ ability to act as optical waveguides. Some crystals displayed luminescence in the 550–600 nm [...] Read more.
A new series of donor–acceptor–donor (D–A–D) structures derived from arylethynyl 1H-benzo[d]imidazole was synthesized and processed into single crystals with the goal of testing such crystals’ ability to act as optical waveguides. Some crystals displayed luminescence in the 550–600 nm range and optical waveguiding behavior with optical loss coefficients around 10−2 dB/μm, which indicated a notable light transport. The crystalline structure, confirmed by X-ray diffraction, contains internal channels that are important for light propagation, as we previously reported. The combination of a 1D assembly, a single crystal structure, and notable light emission properties with low losses from self-absorption made 1H-benzo[d]imidazole derivatives appealing compounds for optical waveguide applications. Full article
(This article belongs to the Special Issue Research on Nanostructured Materials 2.0)
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22 pages, 5524 KiB  
Article
Dynamic and Static Nature of XH-∗-π and YX-∗-π (X = F, Cl, Br, and I; Y = X and F) in the Distorted π-System of Corannulene Elucidated with QTAIM Dual Functional Analysis
by Satoko Hayashi, Takahiro Kato, Yuji Sugibayashi and Waro Nakanishi
Molecules 2023, 28(10), 4219; https://doi.org/10.3390/molecules28104219 - 21 May 2023
Viewed by 990
Abstract
The dynamic and static nature of the XH-∗-π and YX-∗-π (X = F, Cl, Br, and I; Y = X and F) interactions in the distorted π-system of corannulene (π(C20H10)) is elucidated with a QTAIM dual functional analysis (QTAIM-DFA), [...] Read more.
The dynamic and static nature of the XH-∗-π and YX-∗-π (X = F, Cl, Br, and I; Y = X and F) interactions in the distorted π-system of corannulene (π(C20H10)) is elucidated with a QTAIM dual functional analysis (QTAIM-DFA), where asterisks emphasize the presence of bond critical points (BCPs) on the interactions. The static and dynamic nature originates from the data of the fully optimized and perturbed structures, respectively, in QTAIM-DFA. On the convex side, H in F–H-∗-π(C20H10) and each X in Y–X-∗-π(C20H10) join to C of the central five-membered ring in π(C20H10) through a bond path (BP), while each H in X–H-∗-π(C20H10) does so to the midpoint of C=C in the central five-membered ring for X = Cl, Br, or I. On the concave side, each X in F–X-∗-π(C20H10) also joins to C of the central five-membered ring with a BP for X = H, Cl, Br, and I; however, the interactions in other adducts are more complex than those on the convex side. Both H and X in X–H-∗-π(C20H10) (X = Cl and Br) and both Fs in F–F-∗-π(C20H10) connect to the three C atoms in each central five-membered ring (with three BPs). Two, three, and five BPs were detected for the Cl–Cl, I–H, Br–Br, and I–I adducts, where some BPs do not stay on the central five-membered ring in π(C20H10). The interactions are predicted to have a vdW to CT-MC nature. The interactions on the concave side seem weaker than those on the convex side for X–H-∗-π(C20H10), whereas the inverse trend is observed for Y–X-∗-π(C20H10) as a whole. The nature of the interactions in the π(C20H10) adducts of the convex and concave sides is examined in more detail, employing the adducts with X–H and F–X placed on their molecular axis together with the π(C24H12) and π(C6H6) adducts. Full article
(This article belongs to the Special Issue Research on Nanostructured Materials 2.0)
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13 pages, 6272 KiB  
Article
Ag Nanoparticles Decorated CuO@RF Core-Shell Nanowires for High-Performance Surface-Enhanced Raman Spectroscopy Application
by Tung-Hao Chang, Hsin-Wei Di, Yu-Cheng Chang and Chia-Man Chou
Molecules 2022, 27(23), 8460; https://doi.org/10.3390/molecules27238460 - 02 Dec 2022
Cited by 2 | Viewed by 1491
Abstract
Vertical-aligned CuO nanowires have been directly fabricated on Cu foil through a facile thermal oxidation process by a hotplate at 550 °C for 6 h under ambient conditions. The intermediate layer of resorcinol–formaldehyde (RF) and silver (Ag) nanoparticles can be sequentially deposited on [...] Read more.
Vertical-aligned CuO nanowires have been directly fabricated on Cu foil through a facile thermal oxidation process by a hotplate at 550 °C for 6 h under ambient conditions. The intermediate layer of resorcinol–formaldehyde (RF) and silver (Ag) nanoparticles can be sequentially deposited on Cu nanowires to form CuO@RF@Ag core-shell nanowires by a two-step wet chemical approach. The appropriate resorcinol weight and silver nitrate concentration can be favorable to grow the CuO@RF@Ag nanowires with higher surface-enhanced Raman scattering (SERS) enhancement for detecting rhodamine 6G (R6G) molecules. Compared with CuO@Ag nanowires grown by ion sputtering, CuO@RF@Ag nanowires exhibited a higher SERS enhancement factor of 5.33 × 108 and a lower detection limit (10−12 M) for detecting R6G molecules. This result is ascribed to the CuO@RF@Ag nanowires with higher-density hot spots and surface-active sites for enhanced high SERS enhancement, good reproducibility, and uniformity. Furthermore, the CuO@RF@Ag nanowires can also reveal a high-sensitivity SERS-active substrate for detecting amoxicillin (10−10 M) and 5-fluorouracil (10−7 M). CuO@RF@Ag nanowires exhibit a simple fabrication process, high SERS sensitivity, high reproducibility, high uniformity, and low detection limit, which are helpful for the practical application of SERS in different fields. Full article
(This article belongs to the Special Issue Research on Nanostructured Materials 2.0)
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10 pages, 1713 KiB  
Article
Controlled Synthesis of Au25 Superatom Using a Dendrimer Template
by Hisanori Muramatsu, Tetsuya Kambe, Takamasa Tsukamoto, Takane Imaoka and Kimihisa Yamamoto
Molecules 2022, 27(11), 3398; https://doi.org/10.3390/molecules27113398 - 25 May 2022
Cited by 1 | Viewed by 2300
Abstract
Superatoms are promising materials for their potential in elemental substitution and as new building blocks. Thus far, various synthesis methods of thiol-protected Au clusters including an Au25 superatom have been investigated. However, previously reported methods were mainly depending on the thermodynamic stability [...] Read more.
Superatoms are promising materials for their potential in elemental substitution and as new building blocks. Thus far, various synthesis methods of thiol-protected Au clusters including an Au25 superatom have been investigated. However, previously reported methods were mainly depending on the thermodynamic stability of the aimed clusters. In this report, a synthesis method for thiol-protected Au clusters using a dendrimers template is proposed. In this method, the number of Au atoms was controlled by the stepwise complexation feature of a phenylazomethine dendrimer. Therefore, synthesis speed was increased compared with the case without the dendrimer template. Hybridization for the Au25 superatoms was also achieved using the complexation control of metals. Full article
(This article belongs to the Special Issue Research on Nanostructured Materials 2.0)
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