X-ray-induced photo-chemistry and X-ray absorption spectroscopy of biological samples

X-ray-induced photo-chemistry of metal sites within biological molecules is a concern for X-ray absorption spectroscopy, X-ray crystallography and other techniques in which samples are illuminated with X-rays. The effects of X-ray-induced photo-chemistry are reviewed and the methods used to mitigate these in X-ray absorption spectroscopy are outlined.

X-ray absorption spectroscopy at a protein crystallography facility: the Canadian Light Source beamline 08B1-1

The Canadian Macromolecular Crystallography Facility beamline 08B1-1 at the Canadian Light Source has added the capability to perform X-ray absorption spectroscopy on crystal samples.