“…Three probing liquids, Diiodomethane (apolar), Formamide (polar), and DI water (polar), with given surface energy, L LW , L þ and L À , shown in Table 1, 10,14) are used to measure the contact angle of the liquids by the sessile drop method. Substituting the measured contact angle and the given surface energy of the liquids into the eq.…”