The mechanism of attraction is quantum mechanical in nature: The electrons within all atoms continually do their “quantum mechanical dance”, and so at any instant of time, slightly more electrons exist in …

These are also known as colloidal dispersions because the substances remain dispersed and do not settle to the bottom of the container. In colloids, one substance is evenly dispersed in another.

Colloidal dispersions are systems of particles or droplets with the “right dimensions” (the dispersed phase), which are dispersed in a medium (gas, liquid or solid).

The colloidal particles are large enough to scatter a light beam and this phenomenon is called the Tyndall effect. This effect makes a colloidal mixtures appear cloudy or opaque, such as the …

This set of experiments not only prepares for future colloidal studies, but also provides insight into the relationship between particle shape, colloidal interaction, and structure.

Colloidal systems A state of subdivision in which the particles, droplets, or bubbles dispersed in another phase have at least one dimension between 1 and 1000 nm

The interactions between two colloidal particles with electrical double layers can be visualized as two blocks connected by a spring. At large distances of separation the spring is stretched and applies a …