Figure 2From: Effect of fluid shear stress on catalytic activity of biopalladium nanoparticles produced by Klebsiella Pneumoniae ECU-15 on Cr(VI) reduction reactionPhotographs of color during the process of Pd(II) reduction to Pd(0) with K. pneumoniae ECU-15. (a) Pd(II) solution, (b) Pd(II) and the K. pneumoniae suspension, and (c) bioPd(0) and the K. pneumoniae solution.Back to article page