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Separations
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Green Synthesis and Application of Metallic Nanoparticles by Plant Extracts
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Green Synthesis and Application of Metallic Nanoparticles by Plant Extracts

A special issue of Separations (ISSN 2297-8739). This special issue belongs to the section "Analysis of Natural Products and Pharmaceuticals".

Deadline for manuscript submissions: closed (31 July 2023) | Viewed by 3008

Special Issue Editor

Dr. Pandurangan Subash-Babu

E-Mail Website
Guest Editor
Food and Nutrition Dept., College of Food and Agricultural Sciences, King Saud University, Riyadh, Saudi Arabia
Interests: nutrients; phytochemistry; natural products; functionalized nanoparticles; obesity and cancer

Special Issue Information

Dear Colleagues,

The biomedical application of nanoparticles (NPs), such as metal oxide NPs (MONPs) for diagnostics and therapeutics, offers many advantages in nanobiomedicine and modern medicine. MONPs are used in diagnostics for bioimaging of many molecular markers and of genetic and autoimmune diseases, malignant tumors, and photosensitizers in photodynamic therapy. Due to their small size, their uptake and bioavailability are more feasible via cell barriers, blood–brain barriers, macrophage phagocytosis, or other nonspecific mechanisms. The bioavailability of MONPs has increased due to the enhanced colloidal stability. The high stability and easy functionalization of MONPs by various molecules due to their surface negative charge make them a promising tool for biomedical applications. MONPs are especially used in targeted drug delivery, because they possess the ability to cross the blood–brain barrier and pulmonary system and easily adsorb through endothelial cells.

Dr. Pandurangan Subash-Babu
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. Separations is an international peer-reviewed open access monthly 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 2600 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

  • nanomedicine
  • metal oxide nanoparticles
  • biomedical application
  • bioimaging
  • bioavailability

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Published Papers (1 paper)

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Research

22 pages, 12233 KiB  
Article
Green Synthesis of Magnetite Nanoparticles Mediated Fumaria officinalis L. Plant as Sustainable and Renewable Adsorbing Materials
by Akram A. Haji, Rihan S. Abduljabar, Suhad A. Yasin, Zagros A. Omar, Hozan A. Ahmed, Mohammed A. Assiri and Gomaa A. M. Ali
Separations 2023, 10(9), 518; https://doi.org/10.3390/separations10090518 - 21 Sep 2023
Cited by 1 | Viewed by 2617
Abstract
Magnetite nanoparticles (Fe3O4) have been utilized to mediate Fumaria officinalis L., a plant known for its rich source of various phytogredients such as diterpenes, nor-diterpenoids, tri-terpenoids, flavonoids, and phenolic acids. These natural compounds act as capping, reducing, and stabilizing [...] Read more.
Magnetite nanoparticles (Fe3O4) have been utilized to mediate Fumaria officinalis L., a plant known for its rich source of various phytogredients such as diterpenes, nor-diterpenoids, tri-terpenoids, flavonoids, and phenolic acids. These natural compounds act as capping, reducing, and stabilizing agents, offering an affordable and safer approach to synthesize nanoparticles in line with sustainable and eco-friendly concepts, such as green nanoparticles. The cost-effective synthesized nanoparticles were employed to adsorb Pb(II) from an aqueous solution. For investigating the surface characteristics of the adsorbent, a range of techniques were employed, including Field Emission Scanning Electron Microscope (FE-SEM), Fourier Transform Infrared Spectroscopy, and X-ray Diffraction. Fourier Transform Infrared (FT-IR) spectroscopy was specifically applied to discern the functional groups present within the compounds. To optimize the adsorption process and achieve the best removal efficiency (R%), several parameters, including pH, initial concentration, temperature, and contact time, were optimized using the Response Surface Methodology (RSM). The experimental results indicated that the Langmuir isotherm provided a well-fitted model, suggesting a monolayer of Pb(II) capping on the surface of magnetite nanoparticles, with a maximum adsorption capacity of 147.1 mg/g. Moreover, the kinetic findings demonstrated a strong alignment with the pseudo-second-order model. The computed (qe) and observed outcomes associated with the pseudo-second-order kinetic model exhibited a commendable concurrence, underscoring the model’s remarkable precision in forecasting the adsorption mechanism of Pb(II) within the examined parameters. The antioxidant activity and green nanocomposite properties were determined using 1,1-diphenyl-2-picrylhydrazyl (DPPH) and standard analytical methods. The phytochemical profile exhibited a total phenolic content of 596 ± 0.001 mg GAE/g dry weight and a total flavonoid content of 18.25 ± 0.001 mg QE/g dry weight. The DPPH radical’s inhibition showed potent antioxidant activity at various concentrations (44.74, 73.86, 119.791, and 120.16% at 200, 400, 600, and 800 μg/mL, respectively), demonstrating the potential of the plant as a natural capping and reducing agent during the green process of nanoparticle formation. Full article
(This article belongs to the Special Issue Green Synthesis and Application of Metallic Nanoparticles by Plant Extracts)
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