Substances can exist in three states of matter - solid, liquid and gas. All substances are made from particles, and the forces between the particles are different in solids, liquids and gases. The ...

It's a problem that has stumped scientists for years. Now researchers have developed a model that can predict the movements of charged particles, even in heterogeneous environments like cells, blood, ...

Many products are dispersions or suspensions of particles in a liquid medium. Examples range from ceramics, adhesives, inks and paints through to drinks, foods, medicines and personal care products.