Fig. 2From: Laminar flow assisted anisotropic bacteria absorption for chemotaxis delivery of bacteria-attached microparticle a Fabricated device, b microscopic image of the trapper array, c magnified view for 50 um microparticle trapping and d SEM image of the trapper. Horizontal (d h ), vertical (d v ) distances and height of trapper were varied depending on the size of microparticles, while the dimension of trapper itself was fixedBack to article page