Drop-on-demand sample delivery for studying biocatalysts in action at X-ray free-electron lasers. [PDF]
Nat Methods, 2017 X-ray crystallography at X-ray free-electron laser sources is a powerful method for studying macromolecules at biologically relevant temperatures.
Fuller FD +55 more
europepmc +2 more sources
DIY XES - development of an inexpensive, versatile, and easy to fabricate XES analyzer and sample delivery system. [PDF]
Xray Spectrom, 2019 The application of X-ray emission spectroscopy (XES) has grown substantially with the development of X-ray free electron lasers, third and fourth generation synchrotron sources and high-power benchtop sources.
Jensen SC +3 more
europepmc +2 more sources
Picosecond infrared laser driven sample delivery for simultaneous liquid-phase and gas-phase electron diffraction studies [PDF]
Structural Dynamics, 2022 Here, we report on a new approach based on laser driven molecular beams that provides simultaneously nanoscale liquid droplets and gas-phase sample delivery for femtosecond electron diffraction studies.
Zhipeng Huang +3 more
doaj +2 more sources
Three-dimensional-printed gas dynamic virtual nozzles for x-ray laser sample delivery. [PDF]
Opt Express, 2016 Reliable sample delivery is essential to biological imaging using X-ray Free Electron Lasers (XFELs). Continuous injection using the Gas Dynamic Virtual Nozzle (GDVN) has proven valuable, particularly for time-resolved studies.
Nelson G +16 more
europepmc +2 more sources
Measurement of Microsphere Concentration Using a Flow Cytometer with Volumetric Sample Delivery. [PDF]
J Res Natl Inst Stand Technol, 2014 Microsphere concentrations are needed to assign equivalent reference fluorophores (ERF) units to microspheres used in quantitative flow cytometry. A flow cytometer with a syringe based sample delivery system was evaluated for the measurement of the ...
Wang L +3 more
europepmc +2 more sources
PEO-sheathed liquid jets increase sample delivery stability for serial femtosecond X-ray crystallography [PDF]
Scientific ReportsViscoelastic jets can be generated by the polyethylene oxide (PEO) sheathing of an aqueous solution using double-flow focusing nozzles (DFFNs) and represent an efficient method to deliver samples that are dispersed in low and medium-viscosity liquids for
Mohammad Vakili +32 more
doaj +2 more sources
Transdermal microconduits by microscission for drug delivery and sample acquisition [PDF]
BMC Medicine, 2004 Background Painless, rapid, controlled, minimally invasive molecular transport across human skin for drug delivery and analyte acquisition is of widespread interest.
Anderson R +4 more
doaj +4 more sources
Microfluidics at Fiber Tip for Nanoliter Delivery and Sampling [PDF]
Advanced Science, 2021 AbstractDelivery and sampling nanoliter volumes of liquid can benefit new invasive surgical procedures. However, the dead volume and difficulty in generating constant pressure flow limits the use of small tubes such as capillaries. This work demonstrates sub‐millimeter microfluidic chips assembled directly on the tip of a bundle of two hydrophobic ...
Antoine Barbot +3 more
openaire +4 more sources
IUCrJ, 2023 In this commentary, we explore the pioneering implementation of 3D-printed thin liquid sheet devices for advanced X-ray scattering and spectroscopy experiments at high-repetition rate XFELs.
Martin Trebbin
doaj +1 more source
Prevalence and factors associated with cesarean delivery in Nepal : evidence from a nationally representative sample [PDF]
, 2021 Background: Caesarian sections (CS) are life-saving management for a pregnant mother and her baby subject to obstetric complications. The World Health Organization (WHO) expected CS rates not to exceed 10 to 15 per 100 live births in any country.
A. Rahman, Nor Azlina +9 more
core +1 more source