A solvent is chosen such that it has a greater interaction energy with the sheets than they do with each other, and this interaction will replace the bonds holding the sheets together yielding colloidal suspensions of 2D nanosheets.
32.
"From the standpoint of the musicians, I'll say, ` Can you play something that will be a good background for dust climbing up and down sunshine .'Then maybe I'll talk about fixating on one speck of dust and watching its colloidal suspension in this slant of sunshine that's coming in through the window.
33.
Examples of these types of fluids are gelatine, shortening, cream, paints, yogurt, xanthan gum solutions, aqueous iron oxide gels, gelatine gels, pectin gels, synovial fluid, hydrogenated castor oil, some clays ( including bentonite, and montmorillonite ), carbon black suspension in molten tire rubber, some drilling muds, many paints, many floc suspensions, and many colloidal suspensions.
34.
Unstable colloidal suspensions of low-volume fraction form clustered liquid suspensions, wherein individual clusters of particles fall to the bottom of the suspension ( or float to the top if the particles are less dense than the suspending medium ) once the clusters are of sufficient size for the Brownian forces that work to keep the particles in suspension to be overcome by gravitational forces.
