Influence of the sample preparation method of the ultra-small-angle x-ray scattering of lightly sulfonated polystyrenes

1993 ◽  
Vol 26 (15) ◽  
pp. 4064-4066 ◽  
Author(s):  
B. P. Grady ◽  
H. Matsuoka ◽  
Y. Nakatani ◽  
S. L. Cooper ◽  
N. Ise
Keyword(s):  
Sample Preparation ◽  
Small Angle ◽  
Preparation Method ◽  
Sample Preparation Method ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering

scholarly journals LabDisk for SAXS: a centrifugal microfluidic sample preparation platform for small-angle X-ray scattering

Lab on a Chip ◽  
2016 ◽  
Vol 16 (7) ◽  
pp. 1161-1170 ◽  
Author(s):  
Frank Schwemmer ◽  
Clement E. Blanchet ◽  
Alessandro Spilotros ◽  
Dominique Kosse ◽  
Steffen Zehnle ◽  
...  
Keyword(s):  
Protein Structure ◽  
Sample Preparation ◽  
Structure Analysis ◽  
Small Angle ◽  
Protein Structure Analysis ◽  
X Ray ◽  
X Ray Scattering ◽  
Synchrotron Beamlines ◽  
Ray Scattering

We present a centrifugal microfluidic LabDisk for protein structure analysis via small-angle X-ray scattering (SAXS) on synchrotron beamlines.

Silver behenate as a calibration standard of grazing-incidence small-angle X-ray scattering

2006 ◽  
Vol 39 (5) ◽  
pp. 749-751 ◽  
Author(s):  
Byeongdu Lee ◽  
Chieh-Tsung Lo ◽  
Soenke Seifert ◽  
Randall E. Winans
Keyword(s):  
Refractive Index ◽  
Sample Preparation ◽  
Small Angle ◽  
Incident Angle ◽  
Grazing Incidence ◽  
Peak Position ◽  
Calibration Standard ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering

Grazing-incidence small-angle X-ray scattering (GISAXS) patterns of a silver behenate composite film, which has a typical layered structure, are described. The peak position of the film in the GISAXS pattern was varied depending on the incident angle, which was well described by taking into account the refraction and the reflection effects. Since the refractive index of samples depends on sample preparation, it is recommended that the measurement of silver behenate as a standard be done in conventional transmission mode to avoid any complexity.

scholarly journals Automated microfluidic sample-preparation platform for high-throughput structural investigation of proteins by small-angle X-ray scattering

2011 ◽  
Vol 44 (5) ◽  
pp. 1090-1099 ◽  
Author(s):  
Josiane P. Lafleur ◽  
Detlef Snakenborg ◽  
Søren S. Nielsen ◽  
Magda Møller ◽  
Katrine N. Toft ◽  
...  
Keyword(s):  
Sample Preparation ◽  
High Throughput ◽  
Small Angle ◽  
Structural Investigation ◽  
Adaptor Protein ◽  
Complete Analysis ◽  
Uv Absorbance ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering

A new microfluidic sample-preparation system is presented for the structural investigation of proteins using small-angle X-ray scattering (SAXS) at synchrotrons. The system includes hardware and software features for precise fluidic control, sample mixing by diffusion, automated X-ray exposure control, UV absorbance measurements and automated data analysis. As little as 15 µl of sample is required to perform a complete analysis cycle, including sample mixing, SAXS measurement, continuous UV absorbance measurements, and cleaning of the channels and X-ray cell with buffer. The complete analysis cycle can be performed in less than 3 min. Bovine serum albumin was used as a model protein to characterize the mixing efficiency and sample consumption of the system. The N2 fragment of an adaptor protein (p120-RasGAP) was used to demonstrate how the device can be used to survey the structural space of a protein by screening a wide set of conditions using high-throughput techniques.

A Revised O2 Reduction Model in Li-O2 Batteries as Revealed by in Situ Small Angle X-Ray Scattering

2019 ◽  
Author(s):  
Christian Prehal ◽  
Aleksej Samojlov ◽  
Manfred Nachtnebel ◽  
Manfred Kriechbaum ◽  
Heinz Amenitsch ◽  
...  
Keyword(s):  
Small Angle ◽  
Wide Angle ◽  
Reduction Mechanism ◽  
Reduction Model ◽  
X Ray ◽  
X Ray Scattering ◽  
O2 Reduction ◽  
Ray Scattering

<b>Here we use in situ small and wide angle X-ray scattering to elucidate unexpected mechanistic insights of the O2 reduction mechanism in Li-O2 batteries.<br></b>

In situ Time-Resolved Small-Angle X-ray Scattering Reveals the Formation Kinetics of Polyelectrolyte Complex Micelles

2019 ◽  
Author(s):  
Hao Wu ◽  
Jeffrey Ting ◽  
Siqi Meng ◽  
Matthew Tirrell
Keyword(s):  
Small Angle ◽  
Self Assembly ◽  
Electrostatic Interactions ◽  
Polyelectrolyte Complex ◽  
Time Resolved ◽  
X Ray ◽  
X Ray Scattering ◽  
Kinetics Of ◽  
Ray Scattering

We have directly observed the <i>in situ</i> self-assembly kinetics of polyelectrolyte complex (PEC) micelles by synchrotron time-resolved small-angle X-ray scattering, equipped with a stopped-flow device that provides millisecond temporal resolution. This work has elucidated one general kinetic pathway for the process of PEC micelle formation, which provides useful physical insights for increasing our fundamental understanding of complexation and self-assembly dynamics driven by electrostatic interactions that occur on ultrafast timescales.

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