Fig. 1: Scanning electron microscopy micrographs of the polystyrene particles.
From: Nominally identical microplastic models differ greatly in their particle-cell interactions
An overview of the abbreviations and specifications is given in Table 1. The surface morphologies of the different types of particles varied strongly. TJ had the roughest surface (see Supplementary Table 1), where TJ showed elevations and indentations and PX elevations. MG seemed to be covered by a net-like structure. All other particles are highly spherical with smooth surfaces. Those particles exposed to salt water particles (MM-SW2 and MM–SW4) have larger elevations, probably originating from salts whereas particles exposed to freshwater (MM-FW2 and MM–FW4) show rather smooth surfaces with little elevations. Scale bars: 1 µm.
