Advanced Nanostructured Materials for Antimicrobial Applications

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Biology and Medicines".

Deadline for manuscript submissions: closed (30 September 2023) | Viewed by 1817

Special Issue Editor


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Guest Editor
School of Science, RMIT University, Melbourne, Australia
Interests: nanomaterials; bioengineering; microbiology; antimicrobial nanomaterials
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

A decade ago, it was discovered that the nanopillar topography of insect wings such as cicadas, dragonflies and damselflies, were not repelling bacteria as previously surmised, but rather bacteria were attaching and consequently being killed. The nature of the antimicrobial effect of insect wings has now been found to include activity toward both environmental fungi and pathogenic yeasts. Specifically, the antimicrobial nature is associated with the physical disintegration of attached microbes due to a mechanical injury. This exciting new discovery implies that, if successfully replicated on the surface of biomaterials and implantable devices, antibiotics would no longer be required to kill bacteria, and other microbes, that attach on such surfaces.

The Special Issue ‘Advanced Nanostructured Materials for Antimicrobial Applications’ aims to present work detailing the current state-of-the-art in advanced manufacturing of nanostructured nanomaterials for antimicrobial applications. We invite authors to contribute original research articles and review articles covering the current progress on nanostructured antimicrobial materials. Potential topics include, but are not limited to:

  1. Materials with antifungal (fungicidal), antibacterial (bactericidal) and/or antiviral (virucidal) efficacy
  2. Antimicrobial nanoparticles
  3. Antimicrobial nanostructured surfaces

Dr. Denver Linklater
Guest Editor

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Keywords

  • mechano-bactericidal
  • antimicrobial nanomaterials
  • nanostructured surfaces
  • antimicrobial nanoparticles
  • antifungal surfaces
  • antiviral surfaces

Published Papers (1 paper)

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Research

12 pages, 3643 KiB  
Article
In Vitro Evaluation of the Antifungal Effect of AgNPs on Fusarium oxysporum f. sp. lycopersici
by Karla Lizbeth Macías Sánchez, Hiram Deusdedut Rashid González Martínez, Raúl Carrera Cerritos and Juan Carlos Martínez Espinosa
Nanomaterials 2023, 13(7), 1274; https://doi.org/10.3390/nano13071274 - 04 Apr 2023
Cited by 2 | Viewed by 1572
Abstract
The application of nanomaterials in the agri-food industry can lead us to the formulation of new sustainable and effective pesticides for the control of fungi such as Fusarium oxysporum f. sp. lycopersici (Fol). This is a fungal plant pathogen for the tomato plant. [...] Read more.
The application of nanomaterials in the agri-food industry can lead us to the formulation of new sustainable and effective pesticides for the control of fungi such as Fusarium oxysporum f. sp. lycopersici (Fol). This is a fungal plant pathogen for the tomato plant. In this work, silver nanoparticles (AgNPs) were synthesized by a green methodology from Geranium leaf extract as a reducing agent. The poisoned food technique was used to determine the percentage of inhibition of Fol mycelial growth by the action of AgNPs. They were characterized by transmission electron microscopy (TEM, JEOL JEM-2100, Tokyo, Japan) and ultraviolet-visible spectroscopy (UV-VIS, DU 730 Beckman Coulter, Brea, CA, USA). Five different concentrations of AgNPs (10, 20, 40, 75, and 150 mg/L) were evaluated in vitro in order to determine the minimum inhibitory concentration (MIC) as well as the behavior of their antifungal activity in tomato fruit. Nanoparticles with spherical morphology and average diameters of 38.5 ± 18.5 nm were obtained. The maximum percentage of inhibition on the mycelial growth of Fol was 94.6 ± 0.1%, which was obtained using the AgNPs concentration of 150 mg/L and it was determined that the MIC corresponds to 75 mg/L. On the other hand, in a qualitative way, it was possible to observe an external inhibitory effect in the tomato fruit from the concentration of 10 mg/L. Finally, we can conclude that AgNPs are a viable alternative for alternative formulations applied in the agri-food industry as pesticide solutions. Full article
(This article belongs to the Special Issue Advanced Nanostructured Materials for Antimicrobial Applications)
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