Figure 1
From: Use of SU8 as a stable and biocompatible adhesion layer for gold bioelectrodes
Viability of primary neurons on glass, cross-linked SU8-2 and chromium test-substrates. (a) Representative images acquired at one-week intervals, with green regions signifying viable cells, red/purple regions signifying pyknotic cells, and blue regions signifying cells without intracellular esterase activity (see Fig. S1 and Methods for details). (b) Stacked bar charts derived from fluorescence images, showing the distribution of viable, pyknotic and esterase-free cells versus time; error bars represent standard error of the mean. The plots show a significant influence of substrate material on cell viability (see main text), with the percentage of viable cells on chromium being significantly lower than on glass or SU8 at all time points, and the percentage of pyknotic cells being significantly higher.
