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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Cytotoxicity (% cell viability respect to the control) of GSH-AgNPs toward human gingival fibroblast cell line (HGF-1) after exposure for 30 min and 24 h. Results are presented as mean ± standard deviation. * Significant differences respect to the control (p < 0.01).