Table 2.

Surface free energy parameters (mN/m) of the liquids used for contact angle measurements [87,88,89,90,91].

Liquid	${\mathit{\gamma }}_{\mathit{l}\mathit{v}}^{\mathit{T}\mathit{O}\mathit{T}}$	${\mathit{\gamma }}_{\mathit{l}\mathit{v}}^{\mathit{L}\mathit{W}}$	${\mathit{\gamma }}_{\mathit{l}\mathit{v}}^{\mathit{A}\mathit{B}}$	${\mathit{\gamma }}_{\mathit{l}\mathit{v}}^{+}$	${\mathit{\gamma }}_{\mathit{l}\mathit{v}}^{-}$
Water	72.80	21.80	51.00	25.50	25.50
Formamide	58.00	39.00	19.00	2.28	39.6
Methylene iodide	50.80	50.80	0.00	0.72	0.00
Red blood cells (rbc)	36.56	35.2	1.36	0.01	46.2
Platelets (p)	118.24	99.14	19.1	12.26	7.44