Fig. 6
From: Effect of interface-active proteins on the salt crystal size in waterborne hybrid materials
Light microscopy of NaCl crystals formed after drying a droplet of a solution containing 375 mM of NaCl, 5 mM Tris–HCl buffer and 5 mg/mL BSA. (A) Overall image of the sample (×20 magnification), (B) close-up of the selected central NaCl crystal (×100 magnification), (C) detail of the top-edge of the selected crystal (×200 magnification), and (D) detail of deposits found away from the hoppered crystals on the substrate surface (×500 magnification)