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Name of Notes : – Introduction to Colloid and Interface Science and Engineering Lecture Note
Nano scale Colloid and Interface Science is an important field of research and application in the industry. Many pharmaceutical and food products are formulated as disperse systems such as suspensions, emulsions, micro emulsions, gels etc. These systems can vary from colloidal dispersions (covering the size range 1 nm – 1 µm) to more coarse suspensions or emulsions.
The present course deals with the fundamental principles of colloid and interface science involved in these disperse systems. A general introduction will be given to illustrate the importance of interface phenomena at Nano scale and their role in new drug delivery systems development. This is followed by several lectures on the attractive and repulsive forces involved. A lecture will be given on the various classes of surfactants and their solution properties. Three lectures on suspensions, emulsions and foams will be given to illustrate the application of the above principles. Finally, the methods that can be applied to investigate the stability/instability of dispersions will be briefly described.
For formulation of these disperse systems, maintenance of their stability on storage and their subsequent application it is essential to understand the basic principles of colloid and interface science especially at Nano scale. The properties of disperse systems such as suspensions, emulsions and foams can be described in terms of these fundamental principles. The various repulsive and attractive forces involved in these nano-scale disperse systems will be studied. Various stabilization methods (electrostatic, steric, etc.)
Modules / Lectures
- Introduction to Colloid
- Thin Film Hydrodynamics
- Surface Thermodynamics
- Forces in Colloidal Systems
- Electrostatic Interaction
- Stability of Colloids