An article by Dr. Temtem and Dr. Santos describes the usefulness and application of PLGA to forming biodegradable microspheres and their recent use in drug delivery.
"In recent decades the use of
biodegradable and biocompatible
microspheres (typically constituted
with a backbone of lactic and glycolic
acid) has become one of the most
attractive drug delivery platforms. The
advantages of these systems include
the ability to tune biodegradability,
with its wide range of erosion times,
to a less frequent administration (with
consequent reduction in the total
dose); improved patient compliance;
and the potential to microencapsulate
from small molecules to peptides and proteins."
Read more at http://www.hovione.com/h_press/press_rel/201205_Sphere_of_Influence_PMPS.pdf