Cryogenic electron microscopy for nanoparticle analysis is particularly useful in the study of liquid lyotropic mesophases. High resolution micrographs portray internal ordering, and further image processing via fast Fourier transform (FFT) analysis can be a powerful complementary technique alongside x-ray scattering for phase assignment (FFTs mirroring reciprocal lattice points). Some literature examples explore cryo-EM of LLC particles formed from various compositions and served as reference points against which our data were compared. This allowed complementary phase assignment and estimation of lattice parameters, later validated by SAXS. Samples were concentrated for cryo-EM analysis using centrifugal filters with 30 kDa pores for 10 minutes at 10 k r.c.f. The viscous, opaque filtrates were then analysed by DLS for any signs of instability/aggregation. It was found that particles could tolerate being concentrated 100-fold before showing signs of aggregation (generally at around 400 nm). It was presumed that below this point particles merely agglomerated and could be easily re-dispersed.