Fig. 5From: Laminar flow assisted anisotropic bacteria absorption for chemotaxis delivery of bacteria-attached microparticle a Fluorescent microscopic images of anisotropic bacteria absorption at 30 um × 30 um microparticles. Uniform fluorescent intensity at the initial became non-uniform during the bacteria flow was being introduced from the top. b Saturation of fluorescent intensity at the site where the bacteria were absorbed. See Additional file 3 Back to article page