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Progress in high-pressure crystallography at ID7B2 furthers the mission of HP-Bio
Recent developments at station ID7B2, jointly operated by MacCHESS and the HP-Bio project of CHEXS, demonstrate the use of high-pressure crystallography to examine the response of macromolecules to changes in pressure.
Grain-scale deformation of a high entropy alloy using synchrotron high energy diffraction microscopy
New research that exploited the unique strengths of the FAST beamline produced some of the first measurements of individual grain deformation in high entropy alloys. This data can help form accurate predictions of damage and failure processes in these emerging materials, critical for understanding their performance in real-world applications.
In situ spectroscopy as a probe of electrocatalyst performance
Hydrogen fuel cells generally require expensive and scarce platinum catalysts in order to function. Researchers have created highly reactive platinum-nickel nanowires with the potential to reduce the amount of platinum required in fuel cells. Research at PIPOXS examines the atomic-level mechanisms of this catalyst, forming a foundation for the development and commercialization of more efficient fuel cell technology.
ACA honors staff scientist Richard Gillilan
Richard Gillilan, a MacCHESS/CHEXS staff scientist, has been named a member of the 2021 class of Fellows of the American Crystallographic Association (ACA), in recognition of his many career achievements.
Unconventional chiral charge order in kagome superconductor KV3Sb5
Intertwining quantum order and non-trivial topology is at the frontier of condensed matter physics. In a new paper appearing in the journal Nature Materials, a team lead by M. Zahid Hasan from Princeton University reports the discovery of an unconventional chiral charge order in a kagome material, KV3Sb5.
In-Hutch Commissioning of Rotation and Axial Motion System IV (RAMS IV) Load Frame
In spring 2021, the fourth generation of Rotation and Axial Motion System (RAMS IV) load frame was commissioned with X-rays at the Structural Materials Beamline (SMB).
Protein unfolded states populated at high and ambient pressure are similarly compact
This is perhaps the first reported study of the temperature dependence of the dimensions of the high pressure unfolded state of a protein. These measurements strongly support the notion that pressure unfolded proteins do not differ significantly from proteins which are unfolded at atmospheric pressure.
Next-generation detectors ready for experiments at CHESS
Sydor and the Cornell Detector Group worked with CHESS staff and users throughout both the original and commercial development of these new detectors, where CHESS served as a crucial venue for system testing.
Now, Sydor aims to identify a few target user experiments at CHESS where researchers are interested in pushing the detectors to their limits.