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. 2021 Dec 4;11(12):3291. doi: 10.3390/nano11123291

Figure 1.

Figure 1

Characterization of amino-modified nanopolystyrene (PS-NH2) of different nominal sizes from (A) Bangs Laboratories, Inc. (Fishers, IN, USA); PS50-B and PS100-B; (B) Sigma-Aldrich (Milan, Italy); PS50-S and PS100-S. Upper panels: representative SEM images. Scale bar: 100 nm. Lower panels: physicochemical characterization and behavior in different exposure media. PDI = polydispersity index; ζ = zeta potential; MQ = Milli-Q water; ASW = artificial seawater; HS = Mytilus hemolymph serum. 1 from [28]; 2 from [29]; 3 this study.