Following our very recent work on the dynamic co-adsorption of our control antibody COE-3 and nonionic surfactant PS80-7EO from the mixed solution, We request 3 days of Inter beam time to continue this exciting study by completing parallel runs using deuterated surfactant under solvent contrasts to match out surfactant and antibody separately. In addition, we will carry out similar Inter measurements under sequential adsorption starting from COE-3 followed by surfactant binding. Given our previous work has already revealed the same adsorbed amount and layer structure from the two modes of adsorption under equilibration, our goal here is to unravel the detailed dynamic processes to help understand how mAb deformation or unfolding during interfacial adsorption could induce surfactant binding, resulting in well-organised surfactant bilayer on top of the mAb monolayer...