OBJECTIVE: To study the effects of different dispersing media, such as atolin and ethyl benzoate, on sustained-release properties of chitosan microspheres.
It is called hollow glass microspheres, you can think of it as a kind of floating, very foot-friendly sand, so it's teeny, teeny spheres with a very thin silica glass shell around a gas core.
And they use these microspheres to develop drug delivery systems for all kinds of drugs, one of them—some of them can treat cancer. One of them has actually been used in over five million schizophrenic patients.