Biosynthesis of gold nanoparticles by a mining- adapted bacterial consortium : physicochemical properties and environmental applications

dc.contributor.authorMpeta, Miranda
dc.contributor.authorTendenedzai, Job T.
dc.contributor.authorTichapondwa, Shepherd Masimba
dc.contributor.authorChirwa, Evans M.N.
dc.contributor.emailu24054276@tuks.co.za
dc.date.accessioned2026-03-25T05:38:54Z
dc.date.available2026-03-25T05:38:54Z
dc.date.issued2026-06
dc.descriptionDATA AVAILABILITY STATEMENT : The data that support the findings of this paper are openly available in University of Pretoria Research Data Repository.
dc.description.abstractPlease read abstract in the article. HIGHLIGHTS • Media type (broth, MSM, and water) influenced nucleation differing AuNP size. • 60-70 nm range constituted the highest frequency of biosynthesized AuNPs at 23%. • Dose-dependent inhibition of Enterococcus spp. strongest at 50 μg/mL AuNPs. • AuNPs raised Degussa rate constant: 1.67 × under visible light, 2.5 × under sunlight.
dc.description.departmentChemical Engineering
dc.description.librarianhj2026
dc.description.sdgSDG-12: Responsible consumption and production
dc.description.sponsorshipPartially financial support from the National Research Fund (NRF) South Africa as well as the Margaret McNamara Education Grant of 2025.
dc.description.urihttps://www.journals.elsevier.com/materials-today-sustainability
dc.identifier.citationMpeta, M., Tendenedzai, J.T., Tichapondwa, S.M. & Chirwa, E.M.N. 2026, 'Biosynthesis of gold nanoparticles by a mining- adapted bacterial consortium : physicochemical properties and environmental applications', Materials Today Sustainability, vol. 34, art. 101333, pp. 1-16, doi : 10.1016/j.mtsust.2026.101333.
dc.identifier.issn2589-2347 (online)
dc.identifier.other10.1016/j.mtsust.2026.101333
dc.identifier.urihttp://hdl.handle.net/2263/109281
dc.language.isoen
dc.publisherElsevier
dc.rights© 2026 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
dc.subjectBiosynthesized nanoparticles
dc.subjectCatalytic properties
dc.subjectAntimicrobial activity
dc.subjectUV-Vis spectroscopy
dc.subjectTransmission electron microscopy (TEM)
dc.subjectX-ray diffraction (XRD)
dc.subjectFourier transform infrared (FTIR)
dc.subjectDynamic light scattering (DLS)
dc.titleBiosynthesis of gold nanoparticles by a mining- adapted bacterial consortium : physicochemical properties and environmental applications
dc.typeArticle

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