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Nano-Materials and Methods 4.0
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Nano-Materials and Methods 4.0

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: closed (15 November 2023) | Viewed by 7330

Special Issue Editor

Dr. Mihai V. Putz

E-Mail Website
Guest Editor
1. Laboratory of Structural and Computational Physical-Chemistry for Nanosciences and QSAR, Biology-Chemistry Department, West University of Timisoara, Str. Pestalozzi 16, 300115 Timisoara, Romania
2. Laboratory of Renewable Energies-Photovoltaics, R&D National Institute for Electrochemistry and Condensed Matter–INCEMC–Timisoara, Str. Dr. Aurel Podeanu 144, 300569 Timișoara, Romania
Interests: quantum physical chemistry; nanochemistry; reactivity indices and principles; electronegativity; density functional theory; path integrals; enzyme kinetics; QSAR; epistemology and philosophy of science
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

From its advent, nanoscience and nanotechnologies have been used to deal with the deep structure of matter, substances, and/or fields in mutual interaction. However, there are considerable misconceptions regarding whether nanoscience is scaled in time, space, or energy. In fact, the real nanorevolution refers to the ability to intervene and model matter at the nanodimension rather than just describing it in this realm. For this reason, the present Special Issue aims to provide essential information for the international community working with the nanoworld at the molecular level from the frontiers of new nano-insights to the exotic limiting nanodesign and synthesis and towards the development of innovative structures (materials) and functions (methods). The study of nanomatter by nanointeractions (nanomaterials and nan-methods) may truly close the dual circle of nanoscience (controlling the matter of a substance, i.e., field complementarity and observability) and nanotechnology (optimizing matter for structure and function). After all, the end-point of developing nanomaterials and methods should be to impact the integral and integrated (holistic) nanoecono-ecological cycle at large by monitoring the best (re)circulation of natural resources and their transformation for the betterment of everyday life, from the nanosci-ground to multi-tech-users. This will promote a sustainable knowledge-based economy and society.

The main areas of interest for the present Special Issue include, but are not limited to, the following:

  • nanochemistry of carbon-based systems;
  • physical chemistry of hybrid nanostructures;
  • molecular machines: design, synthesis, functioning; multiscale models in complex nanochemical systems;
  • nanochemistry for bioactive compounds;
  • renewable nanosystems;
  • renewable electro-nano-chemistry;
  • magnetic nanomaterials;
  • spectral nanomethods;
  • nanotechnovation management;
  • strategic management of r&d in the nanotech-based economy.

Dr. Mihai V. Putz
Guest Editor

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

  • nanotechnology end-points
  • renewable energy
  • carbon-based materials
  • zero-dimensional materials (metal clusters)
  • 1D materials (nanowires)
  • 2D materials (thin films)
  • chemical interaction
  • supramolecular chemistry (host-guest relationship, surfactants and micelles, biological supramolecular host species)
  • self-assembly
  • template synthesis (macro/meso/micro porous template materials), etc.

Published Papers (4 papers)

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Research

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18 pages, 8691 KiB  
Article
Exploring the Inhibitory Effect of AgBiS2 Nanoparticles on Influenza Viruses
by Junlei Yang, Lihuan Yue, Bei Shen, Zhu Yang, Jiang Shao, Yuqing Miao, Ruizhuo Ouyang and Yihong Hu
Int. J. Mol. Sci. 2023, 24(12), 10223; https://doi.org/10.3390/ijms241210223 - 16 Jun 2023
Viewed by 1337
Abstract
Influenza viruses are respiratory pathogens that are major threats to human health. Due to the emergence of drug-resistant strains, the use of traditional anti-influenza drugs has been hindered. Therefore, the development of new antiviral drugs is critical. In this article, AgBiS2 nanoparticles [...] Read more.
Influenza viruses are respiratory pathogens that are major threats to human health. Due to the emergence of drug-resistant strains, the use of traditional anti-influenza drugs has been hindered. Therefore, the development of new antiviral drugs is critical. In this article, AgBiS2 nanoparticles were synthesized at room temperature, using the bimetallic properties of the material itself to explore its inhibitory effect on the influenza virus. By comparing the synthesized Bi2S3 and Ag2S nanoparticles, it is found that after adding the silver element, the synthesized AgBiS2 nanoparticles have a significantly better inhibitory effect on influenza virus infection than Bi2S3 and Ag2S nanoparticles. Recent studies have shown that the inhibitory effect of AgBiS2 nanoparticles on the influenza virus mainly occurs in the stages of influenza virus-cell internalization and intracellular replication. In addition, it is found that AgBiS2 nanoparticles also have prominent antiviral properties against α and β coronaviruses, indicating that AgBiS2 nanoparticles have significant potential in inhibiting viral activity. Full article
(This article belongs to the Special Issue Nano-Materials and Methods 4.0)
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14 pages, 3902 KiB  
Article
Analysis of the Electron Density of a Water Molecule Encapsulated by Two Cholic Acid Residues
by María Pilar Vázquez-Tato, Julio A. Seijas, Francisco Meijide, Santiago de Frutos and José Vázquez Tato
Int. J. Mol. Sci. 2023, 24(6), 5359; https://doi.org/10.3390/ijms24065359 - 10 Mar 2023
Cited by 1 | Viewed by 920
Abstract
Cholic acid is a trihydroxy bile acid with a nice peculiarity: the average distance between the oxygen atoms (O7 and O12) of the hydroxy groups located at C7 and C12 carbon atoms is 4.5 Å, a value which perfectly matches with the O/O [...] Read more.
Cholic acid is a trihydroxy bile acid with a nice peculiarity: the average distance between the oxygen atoms (O7 and O12) of the hydroxy groups located at C7 and C12 carbon atoms is 4.5 Å, a value which perfectly matches with the O/O tetrahedral edge distance in Ih ice. In the solid phase, they are involved in the formation of hydrogen bonds with other cholic acid units and solvents. This fact was satisfactorily used for designing a cholic dimer which encapsulates one single water molecule between two cholic residues, its oxygen atom (Ow) being exactly located at the centroid of a distorted tetrahedron formed by the four steroid hydroxy groups. The water molecule participates in four hydrogen bonds, with the water simultaneously being an acceptor from the 2 O12 (hydrogen lengths are 2.177 Å and 2.114 Å) and a donor towards the 2 O7 (hydrogen bond lengths are 1.866 Å and 1.920 Å). These facts suggest that this system can be a nice model for the theoretical study of the formation of ice-like structures. These are frequently proposed to describe the water structure found in a plethora of systems (water interfaces, metal complexes, solubilized hydrophobic species, proteins, and confined carbon nanotubes). The above tetrahedral structure is proposed as a reference model for those systems, and the results obtained from the application of the atoms in molecules theory are presented here. Furthermore, the structure of the whole system allows a division into two interesting subsystems in which water is the acceptor of one hydrogen bond and the donor of another. The analysis of the calculated electron density is performed through its gradient vector and the Laplacian. The calculation of the complexation energy used correction of the basis set superposition error (BSSE) with the counterpoise method. As expected, four critical points located in the H…O bond paths were identified. All calculated parameters obey the proposed criteria for hydrogen bonds. The total energy for the interaction in the tetrahedral structure is 54.29 kJ/mol, while the summation obtained of the two independent subsystems and the one between the alkyl rings without water is only 2.5 kJ/mol higher. This concordance, together with the calculated values for the electron density, the Laplacian of the electron density, and the lengths of the oxygen atom and the hydrogen atom (involved in the formation of each hydrogen bond) to the hydrogen bond critical point, suggests that each pair of hydrogen bonds can be considered independent of each other. Full article
(This article belongs to the Special Issue Nano-Materials and Methods 4.0)
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12 pages, 5278 KiB  
Article
High-Performance and Stable Perovskite Solar Cells Using Carbon Quantum Dots and Upconversion Nanoparticles
by Masfer Alkahtani, Sultan M. Alenzi, Abdulellah Alsolami, Najla Alsofyani, Anfal Alfahd, Yahya A. Alzahrani, Abdulaziz Aljuwayr and Marwan Abduljawad
Int. J. Mol. Sci. 2022, 23(22), 14441; https://doi.org/10.3390/ijms232214441 - 21 Nov 2022
Cited by 4 | Viewed by 1876
Abstract
Upconversion nanoparticles (UCNPs) and carbon quantum dots (CQDs) have recently received a lot of attention as promising materials to improve the stability and efficiency of perovskite solar cells (PSCs). This is because they can passivate the surfaces of perovskite-sensitive materials and act as [...] Read more.
Upconversion nanoparticles (UCNPs) and carbon quantum dots (CQDs) have recently received a lot of attention as promising materials to improve the stability and efficiency of perovskite solar cells (PSCs). This is because they can passivate the surfaces of perovskite-sensitive materials and act as a spectrum converter for sunlight. In this study, we mixed and added both promising nanomaterials to PSC layers at the ideal mixing ratios. When compared to the pristine PSCs, the fabricated PSCs showed improved power conversion efficiency (PCE), from 16.57% to 20.44%, a higher photocurrent, and a superior fill factor (FF), which increased from 70% to 75%. Furthermore, the incorporation of CQDs into the manufactured PSCs shielded the perovskite layer from water contact, producing a device that was more stable than the original. Full article
(This article belongs to the Special Issue Nano-Materials and Methods 4.0)
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Review

Jump to: Research

27 pages, 1510 KiB  
Review
Recent Advances on Surface-Modified GBM Targeted Nanoparticles: Targeting Strategies and Surface Characterization
by Francesca Rodà, Riccardo Caraffi, Silvia Picciolini, Giovanni Tosi, Maria Angela Vandelli, Barbara Ruozi, Marzia Bedoni, Ilaria Ottonelli and Jason Thomas Duskey
Int. J. Mol. Sci. 2023, 24(3), 2496; https://doi.org/10.3390/ijms24032496 - 27 Jan 2023
Cited by 3 | Viewed by 2555
Abstract
Glioblastoma multiforme (GBM) is the most common malignant brain tumor, associated with low long-term survival. Nanoparticles (NPs) developed against GBM are a promising strategy to improve current therapies, by enhancing the brain delivery of active molecules and reducing off-target effects. In particular, NPs [...] Read more.
Glioblastoma multiforme (GBM) is the most common malignant brain tumor, associated with low long-term survival. Nanoparticles (NPs) developed against GBM are a promising strategy to improve current therapies, by enhancing the brain delivery of active molecules and reducing off-target effects. In particular, NPs hold high potential for the targeted delivery of chemotherapeutics both across the blood–brain barrier (BBB) and specifically to GBM cell receptors, pathways, or the tumor microenvironment (TME). In this review, the most recent strategies to deliver drugs to GBM are explored. The main focus is on how surface functionalizations are essential for BBB crossing and for tumor specific targeting. We give a critical analysis of the various ligand-based approaches that have been used to target specific cancer cell receptors and the TME, or to interfere with the signaling pathways of GBM. Despite the increasing application of NPs in the clinical setting, new methods for ligand and surface characterization are needed to optimize the synthesis, as well as to predict their in vivo behavior. An expert opinion is given on the future of this research and what is still missing to create and characterize a functional NP system for improved GBM targeting. Full article
(This article belongs to the Special Issue Nano-Materials and Methods 4.0)
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