Materials Physics - Soft matter and interfaces

Research fields - Soft matter and interfaces

The term 'Soft matter' is used for materials that have properities between those of hard solids and regular liquids. The materials are soft or easily deformed. They may be either elastic or viscous or have a combination of these properties.

A transmission electron microscope image of Ni(OH)2 particles that are formed in solution and when concentrated form columnar mesophases. The scale bar is 200 nm

Soft Matter

Many applications of soft matter are important in industry, biology and everyday life. The materials are often made of polymers, colloids or nanostructured systems. Examples include drug delivery systems, paints, coatings and many natural products as well as gels, rubbers and plastic materials

Current research in this area includes studies of interactions of dispersed particles, the effects of external influences such as electric fields or stress on structure and phase behaviour. A particular interest has been to study relationships between structure and properties. and in-situ investigation of samples under flow is a speciality.

A further area of activity is the study of adsorbed and self-assembled layers at interfaces. The design and preparation of interfacial structures is crucial to many modern materials and we apply a wide range of analytical tools to this problem.

Further information about some of the terminology in this area can be found in the Glossary of Colloid and Polymer Science that has been made available as a teaching resource. For a simple introduction to some ideas in polymer physics look at the following Schools Lecture material Building with Snakes.