Figure 2From: One-step synthesis of platinum nanoparticles loaded in alginate bubblesAlginate bubbles with different CaCl 2 concentrations. (A and D) 1% CaCl2; (B and E) 10% CaCl2; (C and F) 20% CaCl2. Alginate in (A to C) and (D to F) are 150 and 350 cp, respectively. All scale bars are 2 mm.Back to article page