ArticleBioprocess and biosystems engineering2024
Green synthesis of silver and gold nanoparticles in Callistemon viminalis extracts and their antimicrobial activities.
Article in Bioprocess and biosystems engineering, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 26 citations in OpenAlex.
- Recent Advances in Gold Nanoparticles as Antimicrobial Agents Against Pathogenic Bacteria: A Review (2022-2026).Applied biochemistry and biotechnology · 2026Review
- A review on gold nanoparticles derived from plants and their antimicrobial applications.Discover nano · 2026Review
- Essential oil extraction from clove, characterization and application.BMC chemistry · 2025Article
- Green synthesis of AuNPs usingRSC advances · 2025Article
- Article
- Salvia sclarea L. mediated green synthesis of gold nanoparticles (AuNPs) and evaluation of their antibacterial, anticandidal, and scolicidal properties.Scientific reports · 2025Article
- Study on the preparation of sterile noble metal nanoparticles and hydrotalcite layered nanoparticles by innovative high pressure sterilization method.Scientific reports · 2025Article
- Green Synthesis: An Eco-Friendly Approach for the Synthesis of Silver Nanoparticles Functionalized withInternational journal of nanomedicine · 2025Article
- Gold Nanoparticles in Nanomedicine: Unique Properties and Therapeutic Potential.Nanomaterials (Basel, Switzerland) · 2024Review
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Authors and funding
11 authors at 6 institutions in 4 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In the current study, the bottlebrush [Callistemon viminalis (Sol. ex Gaertn.) G. Don] plant was selected for the green synthesis of silver (Ag) and gold (Au) nanoparticles and to evaluate its antibacterial and antifungal activities. Phytochemical screening of C. viminalis confirmed the presence of alkaloids, anthraquinones, saponins, tannins, betacyanins, phlobatanins, coumarins, terpenoids, steroids, glycosides, and proteins. To characterize the synthesized Ag and Au NPs, UV-Visible spectroscopy, FTIR spectroscopy for functional group identification, field emission scanning electron microscopy (FE-SEM) for particle size, and elemental analysis were performed using EDX. The UV-Visible absorption spectra of the green-synthesized Ag and Au nanoparticles were found to have a maximum absorption band at 420 nm for Ag NPs and 525 nm for Au NPs. FE-SEM analysis of the synthesized NPs revealed a circular shape with a size of 100 nm. Elemental analysis was performed for the synthesis of Ag and Au NPs, which confirmed the purity of the nanoparticles. The greenly synthesized Ag and Au NPs were also evaluated for their anti-bacterial and anti-fungal activities, which exhibited prominent inhibition activities against Escherichia coli, Staphylococcus aureus, Klebsiella pneumoniae, Pseudomonas aeruginosa, Candida albicans, C. krusei, Aspergillus sp., and Trichoderma species. The highest zone of inhibition 15.5 ± 0.75 and 15 ± 0.85 mm was observed for Ag NPs against E. coli and P. aeruginosa. Similarly, Trichoderma sp. and Aspergillus sp. were inhibited by Ag NPs up to 13.5 ± 0.95 and 13 ± 0.70 mm. This work will open doors for the development of new antimicrobial agents using green chemistry.
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