Fig. 2From: Effectiveness of expanded clay as a bacteria carrier for self-healing concreteColony forming unit (CFU) assay of bacteria YS11 that was immobilized into expanded clay using different bacterial concentrations. Expanded clay was submerged into PBS containing various bacterial concentrations (1.0 × 106, 1.0 × 107, 1.0 × 108 cell/mL) and extent of immobilization were measured with CFU assay (n = 30)Back to article page