measuring fluid viscosity

[matsmcfly1]

I have never used SAXS in my work before, but I am considering it for a potential experiment. In my very limited knowledge I thought that we might be able to use SAXS to measure the viscosity of a fluid that contained nanoparticles - is there a way that this can be done? If particles of known shape and monodisperse size were used, I assume we can fit the data to obtain the radius of gyration, but from this is it possible to calculate the diffusion coefficient or fluid viscosity?

[jans]

I dont think, you can get viscosity from SAXS. But Anton Paar have an instrument, which can measure both SAXS and viscosity at the same time:
https://www.anton-paar.com/be-en/produc ... xs-in-one/