MFIC is not really a NANO company, they are in the colloid generation business, selling capex to others, and barely making a living.
Zeev, colloids are nano. If the particle size is larger than about 250 - 500 nm or so, depending on the particle composition, then the solid/liquid mixture or dispersion is not stable over time, phase separating eventually. There are many materials sold and used that are referred to as "colloids," but are unstable dispersions; people inaccurately use the term colloid for simplicity. Colloids that are stable having particle sizes less than about 100 nm or so are nano-scale materials.
All of that said, I haven't bothered to check out MFIC at all; just wanted to make a pedantic comment =P