Figure 8.

EIS response to the anthrax 2C11 antibody or a “confederate” molecule (poly-l-lysine, PLL) that might confound interpretation of the biochip results. (a) tBLM:PA63 biochip resistance time series in response to the addition of the 2C11 antibody (removal of excess 2C11 indicated at the arrows labeled B. After antibody incubation, LF was added at LF and washed from solution at B; (b) 10 nM PLL is injected into the cell and washed from the cell at the first “B” arrow. PLL and LF are subsequently co-injected at a concentration of 10 nm each at the third arrow and washed from the cell at following “B” arrow.