. Author manuscript; available in PMC: 2013 Mar 13.

Published in final edited form as: Macromolecules. 2012 Feb 24;45(5):2385–2389. doi: 10.1021/ma202739f

Table 2.

Biophysical properties of various cellular HBOCs (RBCs, PEG-LEHs and PEHs).

Type of Hb	Size (Diameter)	P₅₀ (mm Hg)	n	k_off, _O2 (s ⁻¹)	k_on, _CO (10⁶ M⁻¹s⁻¹)	k_ox, _NO (10⁶ M⁻¹s⁻¹)	References
Cell-free Hb
Human	5.5 nm	13.34	2.8	42.22	0.225	42	^*
RBCs
Human and Rat	8 μm	25.10	2.80	4.4	0.065	0.05	^{21, 25, 26}
Human	8 μm	20.00	2.18	16.67	0.130	0.03
PEG-LEHs
Human	279 nm	25–31	2.10	32.00	0.210	8.80	^{27, 28}
Human	176 nm	22.87	2.11	21.57	0.212	4.00	¹²
PEHs
Human PBD 1200	380 nm	13.20	1.91	14.24	0.211	2.87	^*
Human PBD 6500	417 nm	12.13	1.95	4.16	0.206	2.20	^*

represents results from this study.