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Green Synthesis and Application of Silver Nanoparticles

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

Deadline for manuscript submissions: closed (30 March 2023) | Viewed by 3262

Special Issue Editor


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Guest Editor
Department of Biomedical and Clinical Technology, Durban University of Technology, Durban 4000, South Africa
Interests: antimicrobial; biomedical applications; charecterization techniques; environment; health applications; green synthesis; silver nanoparticles; nanotechnology

Special Issue Information

Dear Colleagues,

The demand for environmentally friendly technologies has prompted new approaches to the fabrication of nanoparticles from biological agents. This Special Issue aims to compile current approaches to the preparation of biogenic silver nanoparticles from plant extracts, fungi, and microorganisms. Researchers from a variety of subjects that fall within the scope of the journal are strongly encouraged to submit original research and review papers that highlight the most recent achievements in their study field, or to invite relevant experts and colleagues to do so. This Special Issue will focus on a variety of interesting topics, including (but not limited to) the following:

  • Green synthesis of silver nanoparticles;
  • Biomedical applications of silver nanoparticles;
  • Silver nanoparticles in food applications;
  • Impact of silver nanoparticles on commerce and society;
  • Silver nanoparticles’ impact on environment, health, and safety (EHS).

Dr. Suresh Babu Naidu Krishna
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. 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

  • antibacterial
  • antifungal
  • biomedical applications
  • characterization
  • food applications
  • environment
  • green synthesis
  • health
  • risks
  • scanning electronic microscope
  • silver nanoparticles
  • nanotechnology

Published Papers (2 papers)

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Research

16 pages, 7560 KiB  
Article
Eco-Friendly Synthesis of Silver Nanoparticles by Nitrosalsola vermiculata to Promote Skin Wound Healing
by Ahmed A. H. Abdellatif, Osamah Al Rugaie, Fahad A. Alhumaydhi, Nahla Sameh Tolba and Ayman M. Mousa
Appl. Sci. 2023, 13(12), 6912; https://doi.org/10.3390/app13126912 - 7 Jun 2023
Viewed by 1130
Abstract
Eco-friendly synthesis of silver nanoparticles (SN) by using a naturally occurring plant, such as Nitrosalsola (Salsola) vermiculata (SV), could be a novel way for appropriate wound healing. AgNO3 was reduced by SV to produce safe SN (SN-SV) extract and hasten the wound [...] Read more.
Eco-friendly synthesis of silver nanoparticles (SN) by using a naturally occurring plant, such as Nitrosalsola (Salsola) vermiculata (SV), could be a novel way for appropriate wound healing. AgNO3 was reduced by SV to produce safe SN (SN-SV) extract and hasten the wound healing process. The obtained SN-SV were characterized by size, charge, wavelength, and surface morphology. The optimized formulation was dispersed in O/W cosmetic cream. Then, it was characterized in terms of pH, viscosity, homogeneity, and permeability. The ex vivo and in vivo studies have been conducted in a rat animal model to assess the potential of SN-SV cream on skin tissue regeneration. A skin punch biopsy was obtained to investigate the histopathological (HP) changes in the skin lesions of all rats by the H&E staining and PCNA immunostaining methods. The skin wounds in all subgroups were examined on days 5, 11, and 15 to analyze the effectiveness of SN-SV cream for treating surgical skin wounds. The prepared SN-SV had a particle size of 37.32 ± 1.686 nm, a charge of −1.4 ± 0.7 mV, non-aggregated SN-SV, and a λmax of 396.46 nm. The formed SN-SV cream showed a pH near the skin’s pH, with suitable viscosity and homogeneity and an apparent permeability of 0.009 ± 0.001. The HP changes in the SN-SV subgroups revealed a substantial reduction in wound size and improvement in wound granulation tissue formation and epidermal re-epithelialization (proliferation) compared to the healing in the SN subgroups. The current work revealed that SN-SV could be a novel skin-wound-healing agent with a practical application as a wound-healing platform. Full article
(This article belongs to the Special Issue Green Synthesis and Application of Silver Nanoparticles)
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11 pages, 2472 KiB  
Article
Fungi-Templated Silver Nanoparticle Composite: Synthesis, Characterization, and Its Applications
by Francis Joy, Jyothis Devasia, Aatika Nizam, Vasantha Veerappa Lakshmaiah and Suresh Babu Naidu Krishna
Appl. Sci. 2023, 13(4), 2158; https://doi.org/10.3390/app13042158 - 8 Feb 2023
Cited by 6 | Viewed by 1637
Abstract
The self-assembly of nanoparticles on living bio-templates is a promising synthetic methodology adopted for synthesizing nano/microstructures with high efficiency. Therefore, the method of bio-templating offers various advantages in controlling the geometries of nano/microstructures, thereby increasing the efficiency of the synthesized material towards various [...] Read more.
The self-assembly of nanoparticles on living bio-templates is a promising synthetic methodology adopted for synthesizing nano/microstructures with high efficiency. Therefore, the method of bio-templating offers various advantages in controlling the geometries of nano/microstructures, thereby increasing the efficiency of the synthesized material towards various functional applications. Herein, we utilized a filamentous fungus (Sclerotium rolfsii) as a soft bio-template to generate silver nanoparticle (AgNP) microtubules adhering to the fungal hyphae. The resulting composite combines the unique properties of silver nanoparticles with the biological activity of the fungi. The 3D fungal hyphae–silver nanoparticle (FH-AgNP) composite was characterized using SEM, elemental analysis, and the X-ray diffraction technique. Additionally, to highlight the functional application of the synthesized composite, dye degradation studies of methylene blue under visible light was effectuated, and a percentage degradation of 67.86% was obtained within 60 min, which highlights the potent catalytic activity of FH-AgNPs in dye degradation. Further, the antibacterial study of the composite was carried out against the bacterium Escherichia coli, and it was found that 200 μg of the composite exhibited maximum antibacterial properties against Gram positive (Staphylococcus aureus) and Gram negative (Escherichia coli) bacteria. Overall, fungi-templated silver nanoparticle composites are a promising area of research due to their combination of biological activity and unique physical and chemical properties. Full article
(This article belongs to the Special Issue Green Synthesis and Application of Silver Nanoparticles)
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