TABLE 2.

Characteristics of the particles used in this study and the amount of covalently linked M-block and G-block

Particle type	φb surface (μm/μm2)	Concn of primary amino groups on the surface (mmol/g)	Amt (ng/106 particles) of:
			M-block	G-block
J-205	4.5/NDa	0.65	33	ND
L-1172	4.2/2.3	0.11	12	17
R-409	4.5/3.8	0.50	50	47
BSA	5–10/ND	ND	120	ND

^aND, not determined. 

^bφ, particle number.