20.500.12556/DiRROS-16245 Antibacterial properties and cytotoxicity of 100% waste derived alkali activated materials slags and stone wool-based binders In this study we compare the leaching behavior and the antibacterial and cytotoxic properties of 100% slag or stone wool derived alkali activated materials. The antibacterial activity was measured as the inhibiting capacity against two Gram- negative bacterial strains, Escherichia coli and Pseudomonas aeruginosa and one Gram-positive bacterial strain: Enterococcus faecalis. The cytotoxicity properties were tested on mouse embryonic fibroblast NIH-3T3 cell-line. It was proved that the high quality of the 3D aluminosilicate network of the consolidated materials obtained from powders of CaO or MgO-rich slags or stone wool, opportunely activated with NaO and/or Na-silicate, was capable of stabilizing heavy metal cations. The concentrations of leachate heavy cations were lower than the European law limit when tested in water. The effect of additives in the composites, basal fibers or nanocellulose, did not reduce the chemical stability and slightly influenced the compressive strength. Weight loss in water increased by 20% with basalt fibers addition, while it remained almost constant when nanocellulose was added. All the consolidated materials, cement-like in appearance, exhibited limited antibacterial properties (viability from 50 to 80% depending on the bacterial colony and the amount of sample) and absence of cytotoxicity, envisaging good acceptance from part of the final consumer and zero ecological impact. CaO-rich formulations can replace ordinary Portland cement (showing bacterial viability at 100%) with a certain capability for preventing the reproduction of the E. coli and S. aureus bacteria with health and environmental protection results. antibacterial properties cytotoxicity alkali-activated materials slag stone wool waste utilization social acceptance antibakterijske lastnosti citotoksičnost alkalijsko aktivirani materiali žlindra kamena volna izkoriščanje odpadkov družbeno sprejemanje true false true Frontiers Media S.A. Angleški jezik Slovenski jezik © 2021 Sgarlata, Dal Poggetto, Piccolo, Catauro, Traven, Češnovar, Nguyen, Yliniemi, Barbieri, Ducman, Lancellotti and Leonelli. Neznano 2023-02-10 12:50:12 2023-05-22 10:06:57 2023-05-23 03:50:22 0000-00-00 00:00:00 2021 0 0 Nasl. z nasl. zaslona; Opis vira z dne 15. 7. 2021; str. 1-15 15. Jul. 2021 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2021-07-15 620.1/.2 2296-8016 10.3389/fmats.2021.689290 70330115 https://www.frontiersin.org/articles/10.3389/fmats.2021.689290/full Odprti dostop 1 14f0d4fa-a939-11ed-b359-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=21652 RAZ_Sgarlata_Caterina_2021.pdf RAZ_Sgarlata_Caterina_2021.pdf 1 983CE56FD0082413E2F686B86D4A4B94 0ded985053ecdae7541b63d643264492c623bfef182b78a0de810ac4fbb6b24b b381ed4a-a939-11ed-b359-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=21653 RAZ_Sgarlata_Caterina_2021.PDF RAZ_Sgarlata_Caterina_2021.PDF 1 EBE7270E2632FE18055C3CC824F4C70E b9429737d938c924ee1d5c30ca6b2e9ce848eef4498a45c8ef919e4aa86bc6d0 c1b2bbc2-f866-11ed-a314-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=22386 Zavod za gradbeništvo Slovenije 0 0 0