Journal Article serial femtosecond crystallography protein crystallography FEL Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. SFX free-electron laser Ferredoxins Metalloproteins X-ray X-ray FEL X-ray fluorescence X-ray free-electron laser XPCS coherent diffracted imaging computer programs data processing droplet generation free-electron lasers incoherent diffraction imaging injection metalloprotein microfluidic devices multiplexing nanocrystallography online data analysis radiation damage room-temperature crystallography serial crystallography