Figure 6

(a) Field sensitivity of the stripes with different widths without nanoparticles. The data points represent the average value from 4 identical sensors. (b) Raw signals from the sensors with different width stripes after adding the nanoparticles. The green bars are signals from biotinylated BSA-coated sensors and the red bars are from BSA-coated sensors. (c) The effective field detected by different sensor types. The error bars are the standard deviations of 4 identical sensors.