Capping drives the behavior, dissolution and (eco)toxicity of silver nanoparticles towards microorganisms and mammalian cells

Surface coating plays a fundamental role in driving silver nanoparticle (AgNP) toxicity towards cells, but no clarity exists on the mechanism behind it. AgNPs with two different capping agents, citrate and l -cysteine (citLcys) and sodium-3-mercapto-1-propanesulfonate (3MPS), developed as sensors fo...

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Veröffentlicht in:	Environmental science. Nano 2024-05, Vol.11 (5), p.249-26
Hauptverfasser:	Bellingeri, Arianna, Bono, Nina, Venditti, Iole, Bertelà, Federica, Burratti, Luca, Faleri, Claudia, Protano, Giuseppe, Paccagnini, Eugenio, Lupetti, Pietro, Candiani, Gabriele, Corsi, Ilaria
Format:	Artikel
Sprache:	eng
Schlagworte:	Algae Aquatic microorganisms Biomolecules Capping Coating Coatings Coliforms Dissolution Dissolving E coli Electron microscopy Electrons Electrophoresis Gel electrophoresis Gels Heavy metals Light scattering Mammalian cells Mammals Mercury Metal ions Microalgae Microorganisms Nanoparticles Photon correlation spectroscopy Phytoplankton Polyacrylamide Proteins Silver Sodium Toxicity Transmission electron microscopy
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Zusammenfassung:	Surface coating plays a fundamental role in driving silver nanoparticle (AgNP) toxicity towards cells, but no clarity exists on the mechanism behind it. AgNPs with two different capping agents, citrate and l -cysteine (citLcys) and sodium-3-mercapto-1-propanesulfonate (3MPS), developed as sensors for metal ions in water ( e.g. , Hg( ii ) and Ni( ii )), were investigated in terms of (eco)toxicity towards bacteria ( Escherichia coli ), microalgae ( Raphidocelis subcapitata and Phaeodactylum tricornutum ) and mammalian cells (HeLa and L929). After 72 h of incubation, Ag ion dissolution in algal media was negligible (
ISSN:	2051-8153 2051-8161
DOI:	10.1039/d4en00063c