Wilhelmy plate coated with PTFE film. The trough has dimensions of 40 mm (width) by 151 mm (maximum length), while the single barrier is of 16 mm width. The Wilhelmy plate was placed at the sensor and calibrated first in air and then at the oil interface (16.2 mN/m surface tension, at room temperature). The trough was filled with 20 mL of fluorinated oil and the Wilhelmy plate was immersed completely in the oil phase. The PBS phase (60 mL) was added onto the oil phase by pipetting towards the barrier and not directly to the oil phase. The Wilhelmy plate was lifted using the exclusive sensor mechanism to ensure the plate was placed at the oil-water interface level. Changes in the surface pressure occurring during protein adsorption were recorded after zeroing the surface pressure, at a protein concentration of 1 mg/ mL (injected in the PBS phase drop by drop uniformly throughout the trough).