. Author manuscript; available in PMC: 2012 Oct 1.

Published in final edited form as: Biochim Biophys Acta. 2011 Jun 27;1808(10):2366–2373. doi: 10.1016/j.bbamem.2011.06.013

Table 2.

Effect of polymers on surface activity of simple lipid mixtures (SLM) and complex lipid mixtures (CLM) containing 2% SP-B and 2% SP-C. (Abbreviations defined in Methods).

SLM
	No Polymer	HA	PEG	Dextran	HA/PEG	HA/Dextran	Native surfactant (No Polymer)
Adsorption (mN/m)	23±0.7	21±0.4*	20±0.2*	20±0.2*	20±0.3*	21±0.3*	20±0.2*
γ_min (mN/m) 10^th cycle	10±0.8	2.4±1*	5±1.6	6±1	2±1*	1±0.9*	10±0.7
γ_max (mN/m) 10^th cycle	29±0.4	36±1*	28±0.4	29±0.4	37±2*	40.6±1*	30±0.7
γ_min (mN/m) 5 min	1.4±1	0±0	1.2±1	0.6±0.4	0±0	0±0	2 ±0.6
γ_max (mN/m) 5 min	28.4±0.4	36±1*	29±0.4	29±0.6	36±1.6*	37±0.8*	30±0.5
A₁₀	25±3	14±1*	19±1.3	24±2	11±1.8*	8±0.7*	23±2

CLM
	No Polymer	HA	PEG	Dextran	HA/PEG	HA/Dextran	Native surfactant (No Polymer)
Adsorption (mN/m)	20±0.4	21±0.2	21±0.4	20±0.2*	21±0.2	21±1	20±0.2
γ_min (mN/m) 10^th cycle	11±2	4±1*	15±0.9	12±0.4	5±0.5*	2±0.7*	10±0.7
γ_max (mN/m) 10^th cycle	26±0.7	41±0.8*	26±1	25±0.4	37±0.6*	43±1*	30±0.7
γ_min (mN/m) 5 min	1.4±0.5	1.7±0.8	10±1*	5±1.2	1.3±0.5	1.3±0.5	2 ±0.6
γ_max (mN/m) 5 min	27±0.8	42±1*	28±0.2	25±0.2*	38±1*	40±1*	30±0.5
A₁₀	25±3	6±0.7*	43±2.4*	26±2.4	7±0.5*	7±1*	23±2

Values are means ± SEM for five replicates. An asterisk indicates the value is significantly different from that for the mixture with no polymer (first column). P< 0.05 by ANOVA multiple comparison.