Fig. 6: Visualization of the impacts of zinc ions at the oil/water interface.
From: Design of stimuli-responsive minimalist heptad surfactants for stable emulsions
Shrinking effects of a and b AM1, c and d 6H7K, and e, f HK. The solution was prepared with a peptide concentration of 100 µM, with (200 µM zinc chloride) and without zinc ions. 80 µL for AM1 or 100 µL for heptads oil was dropped into an 8 mL peptide solution and the droplet was allowed to stabilize for 30 minutes. Images were taken in a row including after the droplet was stabilized for 30 minutes (first image), when it first started to shrink for the comparison of the volume (second image), and at the minimal volume of oil left (last image). The syringe diameter is 2 mm.
