Figure 7: Spatial profile of the pumping speed of 2 μm sPsL particles.
From: Harnessing catalytic pumps for directional delivery of microparticles in microchambers
The plot in (a) is for the platinum system and the plot in (b) is for the urease system. The platinum system used an agar gel soaked in 0.29 M H2O2 to create a reagent gradient, while the urease system used a gel soaked in 500 mM urea. Error bars are calculated by taking the s.d. of the speed of 30 particles in a viewing window.
