Table 1. Physical Properties of the Proteins Examined in This Investigation.

protein	protamine46	lysozyme47	BSA48	fibrinogen49,50
molecular weight	4 KDa	14 KDa	55 KDa	340 KDa
shape	spherical	stubby prolate ellipsoid	prolate ellipsoida	cylindricalb
size	5 Åc	18 Åc	140 × 40 × 40 Å	450 × 90 Å
pI	12.1	11.1	4.8	5.7
application	insulin	cell	blood	muscle/tissue

^aWhere a = b < c.

^bWith round ends.

^cDiameter.