Methods for delivering biological agents and microparticle compositions useful for practicing such methods and other methods

摘要

Claim number the use of microparticles for the elaboration of an injectable formulation adpater injection into an egg.That includes an outer Membrane and a Membrane inerna Fluid between them except at one end of the egg Membranes - in which a Cavity defined AirThese microparti - Particles size and density for which CEN - travel through the Fluid between the Membranes of the egg until the end opposite to the Air Cavity.Claim number, a method for preparing a biodegradable Polyester gradable microparticle that contains a bio logically ACTIVE AGENT, which comprises: A.The Polyester dissolved in an organic Solvent Agnete B. add a water soluble Biologically Active to the solution of the step (a) to form a suspension; C.Emulsify suspension of Step (b) in an aqueous Environment in which the Agent is insoluble; D.Evaporate the Solvent Emulsion for pro microparticul Competence; and (e) to collect the microparticle.