Large Scale Screening of Southern African Plant Extracts for the Green Synthesis of Gold Nanoparticles Using Microtitre-Plate Method

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dc.contributor.authorElbagory, Abdulrahman, M
dc.contributor.authorCupido, Christopher, N
dc.contributor.authorMeyer, Mervin
dc.date.accessioned2021-09-03T09:17:51Z
dc.date.available2021-09-03T09:17:51Z
dc.date.issued2016-11
dc.description.abstractThe preparation of gold nanoparticles (AuNPs) involves a variety of chemical and physical methods. These methods use toxic and environmentally harmful chemicals. Consequently, the synthesis of AuNPs using green chemistry has been under investigation to develop eco-friendly nanoparticles. One approach to achieve this is the use of plant-derived phytochemicals that are capable of reducing gold ions to produce AuNPs. The aim of this study was to implement a facile microtitre-plate method to screen a large number of aqueous plant extracts to determine the optimum concentration (OC) for the bio-synthesis of the AuNPs. Several AuNPs of different sizes and shapes were successfully synthesized and characterized from 17 South African plants. The characterization was done using Ultra Violet-Visible Spectroscopy, Dynamic Light Scattering, High Resolution Transmission Electron Microscopy and Energy-Dispersive X-ray Spectroscopy. We also studied the effects of temperature on the synthesis of the AuNPs and showed that changes in temperatures affect the size and dispersity of the generated AuNPs. We also evaluated the stability of the synthesized AuNPs and showed that some of them are stable in biological buffer solutions.en_US
dc.identifier.uridoi:10.3390/molecules21111498
dc.identifier.urihttp://hdl.handle.net/10566/6607
dc.language.isoenen_US
dc.publisherMoleculesen_US
dc.subjectgreen nanotechnologyen_US
dc.subjectgold nanoparticlesen_US
dc.subjectbiosynthesisen_US
dc.subjectCape floraen_US
dc.subjecthigh resolution transmission electron microscopyen_US
dc.titleLarge Scale Screening of Southern African Plant Extracts for the Green Synthesis of Gold Nanoparticles Using Microtitre-Plate Methoden_US
dc.typeArticleen_US

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