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Dose and time dependent in vitro cytotoxicity of free NAR and NAR NPs on SH-SY5Y cells using MTT assay. Cell viability assay at 24 h (A) and 48 h (B). Control consisted of cells treated with 0.1% DMSO (vehicle control, 100 % cell viable). Values are expressed as mean ± SD (n = 3), three independent experiments performed in triplicate.
