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. Author manuscript; available in PMC: 2020 Mar 31.
Published in final edited form as: Langmuir. 2019 Nov 14;35(47):15232–15241. doi: 10.1021/acs.langmuir.9b02590

Table 5.

Amount of lipids deposited per layer determined using QCM and estimation of TNAP content from de difference in the area at π= 30 mN.m−1 of the DPPC:CHOL and DPPC:CHOL/TNAP isotherms

Monolayer lipid composition TNAP Total mass (ng) TNAP mass (ng) TNAP specific activity (U/mg)
DPPC 177 ± 24 -
DPPC + 135 ± 20 21 221
DPPC:CHOL (4:1) 232 ± 23 -
DPPC:CHOL (4:1) + 98 ± 21 8 129
DPPC:CHOL (1:1) 119 ± 24 -
DPPC:CHOL (1:1) + 188 ± 22 59 203