Stable translucent colloid solution

mustafa

I posted this question in Materials and Chemical Engineering forum, but didn't get any reply. So I am posting it here:

I want a colloid solution having following properties:
--> Stable
--> Translucent
--> Can be seperated by electrophoresis
--> Regenerating itself on removing the potential

Please suggest me what colloid solution to use.

Thanks in advance.