TABLE 3.

EFFECT OF MOLECULAR WEIGHT AND HYDROPHILICITY OF PLGA POLYMERS ON PARTICLE SIZE AND ENCAPSULATION EFFICIENCY OF MICROSPHERES

Formulation	PLGA (50:50) polymer	Particle size (μm) (Mean±SD, n=3)	Encapsulation efficiency (%) Mean±SD, n=3)
F6	RG 502	4.56±0.09	40.14±1.27
F9	RG 502 H	3.98±0.17	48.33±2.43
F10	RG 503 H	6.53±0.07	57.72±2.51
F11	RG 504	8.74±0.69	71.05±4.77

The particle size and encapsulation efficiency of BSA loaded PLGA microspheres prepared with RG 502, RG 502 H, RG 503 H and RG 504.