A fixed-target platform for serial femtosecond crystallography in a hydrated environment
作者: M. L. ShelbyD. GilbileT. D. GrantC. SeuringB. W. SegelkeW. HeA. C. EvansT. PakendorfP. FischerM. S. HunterA. BatyukM. BarthelmessA. MeentsM. A. ColemanT. L. KuhlM. Frank
作者单位: 1Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
2University of California at Davis, California, USA
3Department of Structural Biology, Jacobs School of Medicine and Biomedical Sciences, Hauptman-Woodward Institute, SUNY University at Buffalo, Buffalo, New York, USA
4Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, Hamburg, Germany
5Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, California, USA
6Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron,
刊名: IUCrJ, 2020, Vol.7 (Pt 1), pp.30-41
来源数据库: International Union of Crystallography
DOI: 10.1107/S2052252519014003
关键词: Serial crystallographySample deliveryXFELsIn-vacuum studiesFixed-target platformsGraphenePolymersThin filmsMicrocrystalsSample hydrationUS Department of EnergyDE-AC52-07NA27344US Department of EnergyOffice of ScienceDE-AC02-76SF00515National Institutes of Health1R01GM117342-01BioXFEL Science and Technology CenterSTC-1231306
原始语种摘要: For serial femtosecond crystallography at X-ray free-electron lasers, which entails collection of single-pulse diffraction patterns from a constantly refreshed supply of microcrystalline sample, delivery of the sample into the X-ray beam path while maintaining low background remains a technical challenge for some experiments, especially where this methodology is applied to relatively low-ordered samples or those difficult to purify and crystallize in large quantities. This work demonstrates a scheme to encapsulate biological samples using polymer thin films and graphene to maintain sample hydration in vacuum conditions. The encapsulated sample is delivered into the X-ray beam on fixed targets for rapid scanning using the Roadrunner fixed-target system towards a long-term goal of...
全文获取路径: IUCr 

  • platform 台地
  • vacuum 真空
  • encapsulated 压缩
  • hydrated 水合的
  • hydration 水合酌
  • diffraction 衍射
  • ordered 有序的
  • rapid 急流急滩
  • fixed 固定
  • microcrystal 微晶