DYNAMICS OF SOFT MATTER AND PROTEIN PROBED BY X-RAY PHOTON CORRELATION SPECTROSCOPY

X-ray Photon Correlation Spectroscopy (XPCS) is an emerging coherent X-ray scattering technique enabling to probe dynamics based on observations of fluctuations in the intensity of coherent X-ray speckles. XPCS has contributed to address important questions in soft matter such as phase separation in protein solutions, colloidal microscopic organization during gelation, structure evolution of thermo-reversible gels, relaxation in polymer electrolytes, among others. The unique capabilities of XPCS to probe dynamics and structural evolution in non-equilibrium systems can uncover mechanisms underlying protein liquid-liquid phase separation. In this presentation I will show some recent results of proteins and soft matter dynamics probed by in XPCS at Cateretê beamline.