Phytotoxicity, cytogenotoxicity and antimicrobial potential of extracts with gold-silver bimetallic nanoparticles obtained from pteridophyte spores

Authors

DOI:

https://doi.org/10.36253/caryologia-2424

Keywords:

spore extracts, Asplenium scolopendrium L., Dryopteris filix-mas (L.) Schott, phytosynthesis, gold-silver nanoparticles, phytotoxicity, cell viability, cytogenotoxicity, antibacterial potential

Abstract

Investigating the toxicity of naturally occurring or synthesized nanoparticles for various applications is absolutely necessary for environmental protection and safety use. The aim of these research was to investigated the phytotoxicity, cytogenotoxicity and antibacterial potential of the extracts with gold-silver bimetallic nanoparticles (Au-Ag NPs) obtained from green synthesis in Asplenium scolopendrium L. and Dryopteris filix-mas (L.) Schott spores extracts. To our knowledge, this is the first report of the Au-Ag NPs phytosynthesis based on extracts obtained from fern spores. UV-Vis spectroscopy analysis of the samples revealed the maximum absorbance, characteristic of samples with bimetallic nanoparticles, which varied depending on the Au:Ag ratio. Energy-dispersive X-ray spectroscopy confirmed the presence and distribution of Au, Ag and other chemical elements. The presence of specific secondary metabolites in the extracts that helped in NPs biosynthesis stimulated growth processes. Good results were recorded for some Dryopteris filix-mas samples, correlated with a significantly increased mitotic index. Cell viability decreased significantly in three of the nanoformulations. Only extracts with Au-Ag NPs showed antimicrobial effect against Staphylococcus aureus ATCC 25923, Bacillus subtilis ATCC 6633 and Escherichia coli ATCC 8739. The testing of the antibacterial potential of these extracts must be extended to other bacterial strains and other microorganisms, the search of new antimicrobial resources being an urgent necessity nowadays.

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Author Biographies

Oana Alexandra Luțu, National University of Science and Technology Politehnica Bucharest, Pitesti University Center

Department of Natural Sciences, Faculty of Science, Physical Education and Informatics

Liliana Cristina Soare, National University of Science and Technology Politehnica Bucharest, Pitesti University Center

Department of Natural Sciences, Faculty of Science, Physical Education and Informatics

Irina Fierăscu, The National Institute for Research & Development in Chemistry and Petrochemistry, ICECHIM

Faculty of Horticulture, University of Agronomic Sciences and Veterinary Medicine of Bucharest

Radu-Claudiu Fierăscu, The National Institute for Research & Development in Chemistry and Petrochemistry, ICECHIM

Faculty of Chemical Engineering and Biotechnology, National University of Science and Technology Politehnica Bucharest

Codruța Mihaela Dobrescu, National University of Science and Technology Politehnica Bucharest, Pitesti University Center

Department of Natural Sciences, Faculty of Science, Physical Education and Informatics

Alina Păunescu, National University of Science and Technology Politehnica Bucharest, Pitesti University Center

Department of Natural Sciences, Faculty of Science, Physical Education and Informatics

Cristina Maria Ponepal, National University of Science and Technology Politehnica Bucharest, Pitesti University Center

Department of Natural Sciences, Faculty of Science, Physical Education and Informatics

Carmen Mihaela Topală, National University of Science and Technology Politehnica Bucharest, Pitesti University Center

Department of Natural Sciences, Faculty of Science, Physical Education and Informatics

Loredana Elena Vîjan, National University of Science and Technology Politehnica Bucharest, Pitesti University Center

Department of Natural Sciences, Faculty of Science, Physical Education and Informatics

Ionica Deliu, National University of Science and Technology Politehnica Bucharest, Pitesti University Center

Department of Natural Sciences, Faculty of Science, Physical Education and Informatics

Aurelian Denis Negrea, National University of Science and Technology Politehnica Bucharest, Pitesti University Center

Regional Research and Development Center for Innovative Materials, Processes and Products for the Automotive Industry (CRC&D-Auto)

Denisa Ștefania Vîlcoci, National University of Science and Technology Politehnica Bucharest, Pitesti University Center

Regional Research and Development Center for Innovative Materials, Processes and Products for the Automotive Industry (CRC&D-Auto)

Georgiana Cîrstea, National University of Science and Technology Politehnica Bucharest, Pitesti University Center

Regional Research and Development Center for Innovative Materials, Processes and Products for the Automotive Industry (CRC&D-Auto)

Florentina Aldea, Institute of Biology-Bucharest, Romanian Academy

Department of Developmental Biology

Sorina Octavia Honțaru, National University of Science and Technology Politehnica Bucharest, Pitesti University Center

Department of Public Health Arges

Anca Nicoleta Șuțan, National University of Science and Technology Politehnica Bucharest, Pitesti University Center

Department of Natural Sciences, Faculty of Science, Physical Education and Informatics

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2024-07-08

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Luțu, O. A., Soare, L. C., Fierăscu, I., Fierăscu, R.-C., Dobrescu, C. M., Păunescu, A., Ponepal, C. M., Topală, C. M., Vîjan, L. E., Deliu, I., Negrea, A. D., Vîlcoci, D. Ștefania, Cîrstea, G., Aldea, F., Honțaru, S. O., & Șuțan, A. N. (2024). Phytotoxicity, cytogenotoxicity and antimicrobial potential of extracts with gold-silver bimetallic nanoparticles obtained from pteridophyte spores. Caryologia, 77(1), 65–82. https://doi.org/10.36253/caryologia-2424

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