Research output: Contribution to journal › Article › peer-review
Dilational surface elasticity of spread monolayers of pulmonary lipids in a broad range of surface pressure. / Bykov, A.G.; Loglio, MGiuseppe; Ravera, F.; Liggieri, L.; Miller, Reinhard; Noskov, B.A.
In: Colloids and Surfaces A: Physicochemical and Engineering Aspects, Vol. 541, 20.03.2018, p. 137-144.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Dilational surface elasticity of spread monolayers of pulmonary lipids in a broad range of surface pressure
AU - Bykov, A.G.
AU - Loglio, MGiuseppe
AU - Ravera, F.
AU - Liggieri, L.
AU - Miller, Reinhard
AU - Noskov, B.A.
PY - 2018/3/20
Y1 - 2018/3/20
N2 - A new approach to the analysis of nonlinear surface dilational rheological properties was developed with the aim to enlarge the accessible range of surface pressures. The dilational surface elasticity of spread monolayers of DPPC, cholesterol, DMEA and their mixtures was determined in the region of low surface tensions (less than 10 mN/m) corresponding to the state of pulmonary surfactants at the lung interface. The dilational surface elasticity of pure DPPC monolayer proved to be high (∼200 mN/m) up to the collapse. The addition of cholesterol, DMEA or their mixture to the DPPC monolayer increased the dynamic surface elasticity, but could decrease significantly the surface pressure of the monolayer collapse if the concentration of additions exceeds an optimal value.
AB - A new approach to the analysis of nonlinear surface dilational rheological properties was developed with the aim to enlarge the accessible range of surface pressures. The dilational surface elasticity of spread monolayers of DPPC, cholesterol, DMEA and their mixtures was determined in the region of low surface tensions (less than 10 mN/m) corresponding to the state of pulmonary surfactants at the lung interface. The dilational surface elasticity of pure DPPC monolayer proved to be high (∼200 mN/m) up to the collapse. The addition of cholesterol, DMEA or their mixture to the DPPC monolayer increased the dynamic surface elasticity, but could decrease significantly the surface pressure of the monolayer collapse if the concentration of additions exceeds an optimal value.
KW - DPPC
KW - Non-linear behavior
KW - Pulmonary surfactants
KW - Surface elasticity
UR - http://www.scopus.com/inward/record.url?scp=85041415605&partnerID=8YFLogxK
U2 - 10.1016/j.colsurfa.2018.01.031
DO - 10.1016/j.colsurfa.2018.01.031
M3 - Article
VL - 541
SP - 137
EP - 144
JO - Colloids and Surfaces A: Physicochemical and Engineering Aspects
JF - Colloids and Surfaces A: Physicochemical and Engineering Aspects
SN - 0927-7757
ER -
ID: 34938022