Colloids and interfaces

We often use the term surfaces if one of the phases is a gas and the term interface between liquid-liquid, liquid-solid and solid-solid phases. All of these interfaces are important in colloid and surface science, in the understanding, manufacturing or in the application of colloidal products. However, there are many applications in surface science which are not directly related to colloids. 

The huge interface associated with colloids is the reason why colloid and surface chemistry are often studied together. Colloidal dimensions imply that there are numerous surface molecules due to the large surfaces present. For example, 1 litre of a latex paint suspension containing 50% solids with a particle size of 0.2 pm has a total particle surface area of 15 000 m. However, to form such huge interfaces, e.g. by dispersing water in the form of droplets in an oil, we need to 

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T. Alan Hatton, Ph.D., Ralph Landau Professor and Director of the David H. Koch School of Chemical Engineering Practice, Massachusetts Institute of Technology Founding Fellow, American Institute of Medical and Biological Engineering Member, American Institute of Chemical Engineers, American Chemical Society, International Association of Colloid and Interface Scientists, American Association for the Advancement of Science, Neutron Scattering Society of America (Section 22, Alternative Separation Processes)... 

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Questions similar to these are being researched by chemical engineers who are active in the broad field of colloid and interface science. Future contributions by chemical engineers may be the key to the success of the EPID concept in visual display applications. 

Rubio-Hernandez F.J., Carrique F., Ruiz-Reina E. The primary electroviscous effect in colloidal suspensions. Advances in Colloid and Interface Science 107 (2004) 51-... 

Rubio-Hernandez F. J., Ruiz-Reina E., and Gomez-Merino A. I. Primary Electroviscous Effect with a Dynamic Stern Layer Low Ka Results. Journal of Colloid and Interface Science 226,180-184 (2000). 

Gaunt, J. A. Knight, A. E. Windsor, S. A. and Chechik, V. (2005). Stability and quantum yield effects of small molecules additives on solutions of semiconductor nanoparticles. /. Colloid and Interface Science, 290 (2), 437-443. 

FRANK CARUSO Max-Planck-Institute of Colloids and Interfaces,... 

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