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Green synthesis, characterisation and antibacterial activities of Strobilanthes crispus-mediated silver nanoparticles (SC-AGNPS) against selected bacteria

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dc.contributor.authorRohazila Mohamad Hanafiah
dc.contributor.authorSiti Aisyah Abd Ghafar
dc.contributor.authorVuanghao Lim
dc.contributor.authorSiti Nor Asma Musa
dc.contributor.authorFahmi Yakop
dc.contributor.authorArif Haikal Hairil Anuar
dc.date.accessioned2024-06-10T09:10:58Z
dc.date.available2024-06-10T09:10:58Z
dc.date.issued2023-10-17
dc.descriptionArtificial Cells, Nanomedicine, and Biotechnology Volume 51 Issue 1 Page (549-559)
dc.description.abstractThis study aims to characterize and determine the antibacterial activities of synthesized Strobilanthescrispus-mediated AgNPs (SC-AgNPs) against Streptococcus mutans, Escherichia coli and Pseudomonas aer-uginosa. S. crispus water extract acts as a reducing and capping agent in the synthesis of AgNPs. Thesynthesized AgNPs were characterized by using UV-Vis spectrophotometer, dynamic light scattering(DLS), field emission scanning electron microscope (FESEM), X-ray diffractometer (XRD) and Fouriertransform infra-red (FTIR). FESEM images showed a rough surface with a spherical shape. The averagesize distribution of 75.25 nm with a polydispersity index (PDI) of 0.373. XRD analysis matched the face-centred cubic structure of silver. FTIR analysis revealed a shifted peak from 1404.99 to 1345.00 cm−1.MIC and MBC values of SC-AgNPs were 1.25 mg/mL and 2.5 mg/mL against E. coli, P. aeruginosa andS. mutans, respectively. Time-kill assay showed that SC-AgNPs significantly reduced bacterial growth ascompared to non-treated bacteria. Morphologies of bacteria treated with SC-AgNPs were shrunk, lysed,irregular and smaller as compared to control. SC-AgNPs significantly disrupted the gene expression ofeae A, gtf B and Pel A (p < 0.05). This study indicated that the synthesized SC-AgNPs were stable withenhanced antibacterial activities.
dc.identifier.citationMohamad Hanafiah, R., Abd Ghafar, S. A., Lim, V., Musa, S. N. A., Yakop, F., & Hairil Anuar, A. H. (2023). Green synthesis, characterisation and antibacterial activities of Strobilanthes crispus-mediated silver nanoparticles (SC-AGNPS) against selected bacteria. Artificial Cells, Nanomedicine, and Biotechnology, 51(1), 549–559. https://doi.org/10.1080/21691401.2023.2268167
dc.identifier.doi10.1080/21691401.2023.2268167
dc.identifier.urihttps://oarep.usim.edu.my/handle/123456789/19090
dc.language.isoen_US
dc.publisherInforma UK Limited
dc.relation.ispartofArtificial Cells, Nanomedicine, and Biotechnology
dc.relation.issn2169-141X
dc.relation.journalArtificial Cells, Nanomedicine, and Biotechnology
dc.subjectSilver nanoparticles
dc.subjectStrobilanthes crispus
dc.subjectantibacterial
dc.subjectStreptococcusmutans
dc.subjectEscherichia coli
dc.subjectPseudomonas aeruginosa
dc.titleGreen synthesis, characterisation and antibacterial activities of Strobilanthes crispus-mediated silver nanoparticles (SC-AGNPS) against selected bacteria
dc.typejournal-article
dspace.entity.typePublication
oaire.citation.endPage559
oaire.citation.issue1
oaire.citation.startPage549
oaire.citation.volume51

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