Applications of SAXS: Self-assembled Structures

Martin's Molecule

[Ed: It looks like there is more interest than I thought in the field of SAXS; the “Everything SAXS” review paper has been downloaded over 10000 times!]

One more application we found for small-angle scattering was to research structures molecules assemble in when immersed in liquids. Many of us are familiar with the micellar structures that appear in water-based solutions, but what happens in other solvents? Read more »


Comparisons of Doom: line vs. pinhole.

Line-collimated instrument (top, not a SAXSess), versus a pinhole-collimtated instrument (bottom, not a Nanostar)

[ed: My current project is running at an end, so if you happen to have a job offer I cannot refuse, I will seriously weigh it against the (tenured) job offer I got from NIMS!]

The typical argument in favor of the line-collimated “Kratky”-type instruments is that its X-ray flux is very high and that therefore you need only short measurement times. However, its data needs to be corrected through a “desmearing”-procedure, amplifying uncertainties and noise in the process. Does this approach then really give you better data? Let’s find out! Read more »