- Taking the crystals out of X-ray crystallography.
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Determine the absolute configuration when certain conditions are met. Often it is necessary to keep the crystals in solution as some crystals degrade outside the mother liquid. In doubt of the crystal stability, keep them in the crystallizing solvent. The responsible agrees to the analysis by signing a printed version of this document, which should accompany the sample.
The structural analysis requires a single crystal and results in accurate atomic positions of the studied compound. Skip to main content. All systems are completely refurbished and typically come with a one-year warranty. Pre-owned Systems.
- Single Crystal and Powder X-ray Diffraction.
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Gao pointed to the stability afforded by the optical tweezers as a primary advantage for future coherent X-ray experiments. Because of the stability of the technique, investigators were able to obtain coherent diffraction data, which allowed them to reconstruct the sample with sub-nanometer accuracy, revealing sub-nanometer scale defects and grain boundaries within the ostensibly crystalline ZnO microcrystal.
Eventually, the researchers would like to extend the technique to capture the ultrafast evolution of the crystal when it is excited by a laser pulse, said University of Chicago chemistry professor Norbert Scherer, another author of the paper. To carry out the experiment, the researchers relied on the creation of microfluidic components at CNM. Electrodynamics simulations were also carried out at CNM's Carbon high-performance computing cluster.
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University of Chicago researchers contributed their expertise on the holographic optical tweezer technique. A paper based on the study, " Three-dimensional optical trapping and orientation of microparticles for coherent X-ray diffraction imaging ," appeared in the February 11 online edition of the Proceedings of the National Academy of Sciences.
Together the NSRCs comprise a suite of complementary facilities that provide researchers with state-of-the-art capabilities to fabricate, process, characterize and model nanoscale materials, and constitute the largest infrastructure investment of the National Nanotechnology Initiative. Argonne National Laboratory seeks solutions to pressing national problems in science and technology.
The nation's first national laboratory, Argonne conducts leading-edge basic and applied scientific research in virtually every scientific discipline.
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