Table I.

Particle Size Distribution and MP Loading of PLGA Microspheres

Formulation code	PLGA	Size distribution (μm)			Span	MP content (%, w/w)	E.E. (%)
		d 10 a	d 50 b	d 90 c
MS 4555 2A	DL 4555 2A	7.8	25.1	68.7	2.4	17.2 ± 2.1	57.4 ± 7.0
MS 2A	DL 5050 2A	10.4	22.5	49	1.7	16.7 ± 2.5	55.8 ± 8.2
MS 3A	DL 5050 3A	5.3	15.6	45.6	2.6	17.7 ± 1.2	58.9 ± 4.1
MS 2M	DL 5050 2M	7	18.2	46.5	2.2	17.3 ± 2.0	57.8 ± 6.7

^aTen percent of particles were smaller than that number

^bFifty percent of particles were smaller than that number

^cNinety percent of particles were smaller than that number