Fig. 6. Pendant droplet responses to magnetic fields.

(A) When the pendant droplet was set in the middle of two magnets with the opposite polarity, the 2D NCPS assembly was displaced in space and the encapsulated fluid was expanded along the axis of the magnetic field and was compressed along the axis normal to the field. (B) At 2.5 mg ml⁻¹ concentration of zwitterionic ligand 1, the interfacial tension of the droplet increased from γ_{polar/nonpolar} = 4.0 to 5.6 mN m⁻¹ when the magnetic field was applied. The droplet recovered both its equilibrium shape and interfacial tension once the field was removed.