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[SA_scat] X+: New X-Ray Scattering Analysis Software

Dear Colleagues,

Please see below for details of a new software package developed in our Institute.

Regards,
Uri Raviv



X+: Software for Analyzing Supramolecular Self-Assemblies

http://chemistry.huji.ac.il/~raviv/xplus.zip


Tal Ben-Nun, Pablo Szekely, Avi Ginsburg and Uri Raviv
The Institute of Chemistry, The Hebrew University of Jerusalem, Israel

uri.raviv@mail.huji.ac.il<mailto:uri.raviv@mail.huji.ac.il>

Our software program, X+, analyses X-ray scattering from macromolecules in solution. Thoroughly analyses both structure and form factors to model the entire scattering signal, allowing extraction of relevant physical parameters including electron-density distribution, correlation distances, domain sizes, elastic constants and parameters describing intermolecular interactions.

Key Features


  *   X+ provides a means to easily study and thoroughly analyze many important biological self-assembled structures and soft-matter supramolecular structures.
  *   Can be used to investigate non-crystalline self-assembled structures with features spanning length scales in the range 0.1– 200 nm.
  *   Enables the analysis of solution X-ray scattering from self-assembled systems, including liquid crystals, self-assembled polymers, various supramolecular complexes and particularly biomolecular assemblies.

The Opportunity

System may be used for analyzing all types of large molecular structures in solution, such as:

  *   Viruses
  *   Microtubules
  *   Nanostructures
  *   Membranes
  *   Liquid crystals
  *   Polymer assemblies

Papers:


1.       Ben Nun T., Ginsburg A., Szekely P., and Raviv U.  "X+ : A Comprehensive, Computationally Accelerated, Structural Analysis Tool of Solution X-ray Scattering from Supramolecular Self-Assemblies". J. Appl. Cryst., 43, 1522-1531, 2010.
http://journals.iucr.org/j/issues/2010/06/00/aj5158/stdsup.html


2.      Szekely P., Ginsburg A., Ben Nun T., and Raviv U. "Solution X-Ray Scattering Form Factors of Supramolecular Self-Assembled Structures", Lamgmuir, 26, 13110-13129, 2010.
http://pubs.acs.org/doi/abs/10.1021/la101433t?prevSearch=%255BContrib%253A%2Braviv%252C%2Bu%255D&searchHistoryKey=


Download X+, quick user’s guide and installation instructions:

System Requirements:
~~~~~~~~~~~~~~~~~~~~
This program uses Microsoft .NET Framework 3.0 and Microsoft Visual C++ 2008 Redistributable
Package, both available for download on the Microsoft website.

Microsoft .NET Framework 3.0 is available for download at this URL:
http://www.microsoft.com/downloads/details.aspx?FamilyID=10CC340B-F857-4A14-83F5-25634C3BF043&displaylang=en

Microsoft Visual C++ 2008 Redistributable Package is available for download at this URL:
http://www.microsoft.com/downloads/details.aspx?familyid=A5C84275-3B97-4AB7-A40D-3802B2AF5FC2&displaylang=en



Downloading X+:
~~~~~~~~~~~~~~~
X+ can be found in the following link:
http://chemistry.huji.ac.il/~raviv/xplus.zip

Installing X+:
~~~~~~~~~~~~~~
Ensure that .NET and Visual C++ 2008 Redistributable Package are installed.  Copy X+.exe and xplusbackend.dll to the desired directory and run X+.

Usage:
~~~~~~
See the Quick Users Guide for more information.





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