Additional file 1: Figure S1. of In vitro biological responses to nanofibrillated cellulose by human dermal, lung and immune cells: surface chemistry aspect

Light microscopy images of untreated (top panels) and DMSO-treatedd (bottom panels) cells. Top images show HDF, MRC-5 and THP-1 macrophage cells untreated (negative control) and bottom images show cells treated with DMSO 5% in cell culture media (positive control). Scale bars represent 100 μm. (TIF 4130 kb