Figure 9.

Detection of cross-spot contamination (in %) per pin across a ToxArray™ slide. The slide was hybridized with Cy5-labeled mouse liver RNA and with Cy3-labeled Universal mouse reference RNA. The slide shows a high amount of cross-pin carry-over from the 100 μM EC oligonucleotide to the buffer spot in both the Cy3 and Cy5 channels. Cross-pin carry-over is noted in all sub-grids printed by pin 7.