Dispersions

 
     

EminTech 

 
  Dispersions, i.e. solids in liquid, are used when
flowability of solids is desired. This type of
formulation permit high concentration of active drug.

A key problem in dispersions is crystal size
growth. By reduction of surface energy between
crystal and continuous phase (often water), the
probability of crystal growth is decreased.

An image showing a dispersion can be found
at the page Image analysis / Microscopy.

 
  Drug crystal length in presence of different
types of surfactants. Nonionic surfactants
are shown in detail below
 
       
             
             
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