Abstract
This study investigates the role of size and deformability of potato protein microgels in influencing their interfacial performance at the air-water interface. Microgels produced via a top-down method were studied across different length scales, focusing on the air-water interface. Techniques included internal structure analysis via small-angle X-ray scattering (SAXS), particle deformability and moduli studies using atomic force microscopy (AFM), and compression and deposition of Langmuir-Blodgett monolayers. It was found that microgels have the capacity to reach a jammed interfacial state similar to that of nongelled potato protein, however, compression may be required to promote their intermolecular interactions. Despite this, thicker microgel-laden interfacial layers may have greater capacity to promote steric hindrance and aid stability within foams and emulsions.