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. Author manuscript; available in PMC: 2012 Feb 1.
Published in final edited form as: Biomaterials. 2010 Nov 10;32(4):1193–1203. doi: 10.1016/j.biomaterials.2010.08.079

Table 2.

Estimated mole ratios of bPEI0.8kDa, iminothiolane-mediated amidine (-NHC(=NH2+)CH2CH2CH2S-), and cysteine (-SCH2CH(COOH)NH2) moieties, the mole ratio of amidine groups per cysteine residues, and the calculated mass fraction (%) of bPEI0.8kDa in RPC-bPEI0.8kDa

Mole ratios per bPEI0.8kDa Mole ratio of
amidine moieties per
cysteine residues		 Mass fraction (%) of
bPEI0.8kDa in RPC-
bPEI0.8kDa
Amidine groups Cysteine
RPC-bPEI0.8kDa1 2.00 0.31 6.5 76.8%
RPC-bPEI0.8kDa2 2.03 0.19 10.7 77.7%
RPC-bPEI0.8kDa3 1.66 0.09 18.4 81.6%
RPCbPEI0.8kDa4 1.30 0.11 11.8 84.6%