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Advances in Nanomaterials and Nanostructures: Synthesis, Characterization, and Applications

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Nanotechnology and Applied Nanosciences".

Deadline for manuscript submissions: 20 February 2026 | Viewed by 623

Special Issue Editors


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Guest Editor
Department of Inorganic and Coordination Chemistry, Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100 Toruń, Poland
Interests: titania nanotubes; nanomaterials; surface modification; methylene blue; photodegradation; catalysis; platinum complexes; kinetics; substitution
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Advanced nanomaterials and nanostructures are important species today. Their development was caused by, for example, the construction of scanning electron microscopes in the previous century. This allowed for the separation of many different paths in this scientific field. Sometimes, collecting actual studies on that broad field of research is great.

This Special Issue is a great opportunity to do that. It is a chance to collect papers focused on nanomaterials and nanostructures, which are interesting for scientists. The papers can study titania or carbon-based nanomaterials, composites modified with, e.g., nanoparticles introducing interesting new properties, nanoparticles, quantum dots, catalysts, photocatalysts, adsorbents, and many other fascinating chemical systems.

Besides the interesting compounds mentioned, methods of their synthesis, their activity, and thermodynamic or kinetic stability are good topics for the proposed Special Issue.

Dr. Adrian Topolski
Prof. Dr. Aleksandra Radtke
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. Applied Sciences 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 2400 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

  • nanomaterials
  • nanostructures
  • nanoparticles
  • activity
  • applications

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Published Papers (1 paper)

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Research

21 pages, 3164 KB  
Article
Development and Characterization of Chitosan–Polyvinylpyrrolidone Nanoparticles for Antimicrobial Drug Delivery Applications
by Pablo Sebastián Espinel, Lilian Spencer, Fernando Albericio and Hortensia Rodríguez
Appl. Sci. 2025, 15(18), 10103; https://doi.org/10.3390/app151810103 - 16 Sep 2025
Viewed by 312
Abstract
Chitosan (CS) and polyvinylpyrrolidone (PVP)-based nanoparticles (NPs) are promising carriers for drug delivery due to their biocompatibility, biodegradability, and intrinsic antimicrobial properties. This study explores CS-PVP NPs for the encapsulation and controlled release of synthetic compounds (bis-THTT, JH1, JH2) and natural antimicrobials (honey [...] Read more.
Chitosan (CS) and polyvinylpyrrolidone (PVP)-based nanoparticles (NPs) are promising carriers for drug delivery due to their biocompatibility, biodegradability, and intrinsic antimicrobial properties. This study explores CS-PVP NPs for the encapsulation and controlled release of synthetic compounds (bis-THTT, JH1, JH2) and natural antimicrobials (honey and propolis). NPs were synthesized via ionic gelation, optimizing CS:PVP and CS-PVP:sodium tripolyphosphate (TPP) ratios. The optimal formulation (CS:PVP 1:0.5) produced stable, homogeneous NPs. Characterization was performed using FTIR, TGA, XRD, and AFM. Encapsulation efficiencies ranged from 44–60%. Antimicrobial activity was evaluated against Escherichia coli and Staphylococcus aureus, showing significant inhibition for JH1-, JH2-, honey-, and propolis-loaded NPs against E. coli. Cytotoxicity assays on 3T3 fibroblasts confirmed the biocompatibility of all formulations at 5 and 10 µg/mL. In vitro release studies in artificial gastric fluid (pH 1.78) demonstrated sustained drug release over 180 min. These results confirm that CS-PVP NPs can effectively encapsulate and protect both synthetic and natural bioactive compounds, enhancing their therapeutic potential. The developed nanosystems represent a versatile and safe platform for antimicrobial drug delivery and may support future applications in biomedical therapies. Full article
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