The colloidal suprastructure of smart microgels at oil-water interfaces.
Oil on troubled waters: Stimuli-sensitive emulsions have been used to prepare temperature- and pH-responsive microgels. The emulsion stability at oil-water interfaces is not governed by the particle packing density, and structural changes induced by the interface lead to connections between the individual microgels (see picture; scale bar 1 microm), which behave very differently compared to solid-particle-stabilized emulsions.
Brugger
Bastian
B
Institute of Physical Chemistry, RWTH Aachen University, Landoltweg 2, 52056 Aachen, Germany.
Rütten
Stephan
S
Phan
Kim-Ho
KH
Möller
Martin
M
Richtering
Walter
W