Molecular kinetics of protein unfolding at the air/water interface probed by vibrational sum-frequency spectroscopy.
A time-resolved vibrational sum-frequency generation (VSFG) spectroscopy study of lysozyme adsorption and unfolding at the air/water interface, combined with simultaneous surface-tension measurements demonstrates how interface-selective nonlinear vibrational spectroscopy can resolve molecular kinetic steps that are hid...