S. No. Biopolymer Nature pI Rh (nm) Rg (nm) lp   (nm) 1. DNA polyanion -- 140±10 117±10 50[24] 2. BSA polyampholyte 4.6 3.5±0.5 3.1±0.5 7 3. Chitosan polycation -- 340±40 260±40 17[25] 4. Gelatin -A polyampholyte 9.0 58±3 55±3 10[26] 5. Gelatin -B polyampholyte 4.9 23±2 34±2 2[27,28]

Table 1: Listing of physical properties of biopolymers used in this work. Apparent hydrodynamic radius Rh, radius of gyration Rg, intrinsic persistence length lp and pI values are presented. Rh, Rg and pI values were measured. [95] - Reproduced by permission of the PCCP Owner Societies.