Figure 2: Cell viability on bioorganic active interface.
From: A hybrid bioorganic interface for neuronal photoactivation
(a) Hippocampal neurons cultured on either poly-L-lysine (PLL)-treated ITO/rr-P3HT:PCBM devices (left) or control glass substrates covered with ITO and PLL only (right) after 12 DIV. Scale bars, 25 μm. (b) Propidium iodine/fluorescein diacetate staining assay carried out at 21 DIV. Green, blue and violet arrows indicate viable cells, apoptotic cells and necrotic/apoptotic cells, respectively. Scale bars, 25 μm. (c) Statistical analysis of cell viability on control (grey) or polymer-coated (red) substrates (P=0.558, one-way ANOVA, n=6) at four time points: 7 DIV, 14 DIV, 21 DIV and 28 DIV. (d) Statistical analysis of cell mortality (P=0.445, one-way ANOVA, n=6) at the same time points of panel (c).
