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Synthesis, Characterisation and Application of Phytosynthesized Nanomaterials

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Advanced Nanomaterials and Nanotechnology".

Deadline for manuscript submissions: closed (20 May 2023) | Viewed by 3028

Special Issue Editor


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Guest Editor
Department of General Chemistry, Faculty of Chemical Engineering and Biotechnologies, The National University of Science and Technology POLITEHNICA Bucharest, Gheorghe Polizu 1-7 Street, 011061 Bucharest, Romania
Interests: biotechnology; food chemistry; antimicrobial activity
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Special Issue Information

Dear Colleagues,

In the last few years, new nanoparticle preparation methods have emerged, replacing the usual reagents with plant extracts obtained in different conditions.

Green synthesis uses bio-reduction, which is 100% eco-friendly, energy-saving, and economically viable. This Special Issue will focus on the development of new bio nanomaterials with increased antioxidant and antimicrobial properties according to the end users’ needs. If the final users and the manufacturer are aware of the main biological activities of the used plant extract they will be able to act accordingly considering the final goal.

This Special Issue of Materials will cover recent advances in the synthesis, characterisation and application of phytosynthesized nanomaterials.

We welcome the submission of full papers, communications, and reviews. Potential topics include, but are not limited to:

  • Nanomaterials in the food industry (nanosensors, packaging, etc.);
  • Nanomaterials in medicine (biomedical devices, drug delivery, imaging, etc.);
  • Nanomaterials in agriculture (nanomaterials in sensing systems, etc.).

A particular topic of interest is the safety of novel nanomaterials intended for use on humans.

Dr. Camelia Ungureanu
Guest Editor

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Keywords

  • phytosynthesized nanomaterials
  • plant extract
  • natural compounds
  • functional nanostructured materials
  • antimicrobial

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Published Papers (1 paper)

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Research

28 pages, 5664 KiB  
Article
Phytosynthesis of Biological Active Silver Nanoparticles Using Echinacea purpurea L. Extracts
by Ioana Catalina Fierascu, Irina Fierascu, Anda Maria Baroi, Camelia Ungureanu, Alina Ortan, Sorin Marius Avramescu, Raluca Somoghi, Radu Claudiu Fierascu and Cristina Elena Dinu-Parvu
Materials 2022, 15(20), 7327; https://doi.org/10.3390/ma15207327 - 20 Oct 2022
Cited by 11 | Viewed by 2656
Abstract
With their phytoconstituents acting as reducing and capping agents, natural extracts can be considered a viable alternative for the obtaining of metallic nanoparticles. The properties of phytosynthesized nanoparticles are dependent upon size and morphology, which, in turn, can be tailored by adjusting different [...] Read more.
With their phytoconstituents acting as reducing and capping agents, natural extracts can be considered a viable alternative for the obtaining of metallic nanoparticles. The properties of phytosynthesized nanoparticles are dependent upon size and morphology, which, in turn, can be tailored by adjusting different parameters of the phytosynthesis process (such as the extracts’ composition). In the present study, we aimed to evaluate, for the first time in the literature, the influence of the extraction method and extract concentration on the morphological and biological properties (antioxidant and antibacterial activity) of silver nanoparticles phytosynthesized using Echinacea pupurea L. extracts. The obtained results revealed that the use of the low-concentration Echinacea hydro-alcoholic extract obtained via classical temperature extraction led to the development of nanoparticles with the smallest dimensions (less than 10 nm), compared with the use of extracts obtained with higher concentrations and the extract obtained via the microwave method. The developed nanomaterials exhibited enhanced antioxidant effects (determined via the DPPH assay) and antimicrobial properties (against Escherichia coli and Candida albicans), compared with the parent extracts. Full article
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