An impedance QCM study on the partitioning of bioactive compounds in supported phospholipid bilayers

Klaara Kannisto; Lasse Murtomäki; Tapani Viitala

doi:10.1016/j.colsurfb.2011.04.012

An impedance QCM study on the partitioning of bioactive compounds in supported phospholipid bilayers

Klaara Kannisto, Lasse Murtomäki^*, Tapani Viitala

^*Corresponding author for this work

Research output: Contribution to journal › Article › Scientific › peer-review

24 Citations (Scopus)

Abstract

The interaction of two drugs of small molecular size, propranolol and tetracaine, and the membrane-perturbing peptide melittin with a phospholipid bilayer supported on a SiO₂ surface was studied with the quartz crystal microbalance. All three bioactive compounds interacted with the lipid bilayer and changed its viscoelastic properties. Adsorbed mass of the compounds was analyzed with a viscoelastic model as a function of the concentration of the compounds in the aqueous phase, as well as the effect of the compounds on the bilayer viscoelasticity. The analysis was based on the interpretation of the impedance of the crystal, utilizing the 5th, 7th and 9th overtone of the fundamental 5MHz resonance frequency.

Original language	English
Pages (from-to)	298-304
Number of pages	7
Journal	Colloids and Surfaces B: Biointerfaces
Volume	86
Issue number	2
DOIs	https://doi.org/10.1016/j.colsurfb.2011.04.012
Publication status	Published - 1 Sept 2011
Externally published	Yes
MoE publication type	A1 Journal article-refereed

Keywords

Adsorption
Phospholipid bilayer
Quartz crystal microbalance
Viscoelasticity

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10.1016/j.colsurfb.2011.04.012

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title = "An impedance QCM study on the partitioning of bioactive compounds in supported phospholipid bilayers",

abstract = "The interaction of two drugs of small molecular size, propranolol and tetracaine, and the membrane-perturbing peptide melittin with a phospholipid bilayer supported on a SiO2 surface was studied with the quartz crystal microbalance. All three bioactive compounds interacted with the lipid bilayer and changed its viscoelastic properties. Adsorbed mass of the compounds was analyzed with a viscoelastic model as a function of the concentration of the compounds in the aqueous phase, as well as the effect of the compounds on the bilayer viscoelasticity. The analysis was based on the interpretation of the impedance of the crystal, utilizing the 5th, 7th and 9th overtone of the fundamental 5MHz resonance frequency.",

keywords = "Adsorption, Phospholipid bilayer, Quartz crystal microbalance, Viscoelasticity",

author = "Klaara Kannisto and Lasse Murtom{\"a}ki and Tapani Viitala",

note = "Funding Information: Tapani Viitala acknowledges support from the Academy of Finland (grant nos. 137053 and 140980 ).",

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AU - Kannisto, Klaara

AU - Murtomäki, Lasse

AU - Viitala, Tapani

N1 - Funding Information: Tapani Viitala acknowledges support from the Academy of Finland (grant nos. 137053 and 140980 ).

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N2 - The interaction of two drugs of small molecular size, propranolol and tetracaine, and the membrane-perturbing peptide melittin with a phospholipid bilayer supported on a SiO2 surface was studied with the quartz crystal microbalance. All three bioactive compounds interacted with the lipid bilayer and changed its viscoelastic properties. Adsorbed mass of the compounds was analyzed with a viscoelastic model as a function of the concentration of the compounds in the aqueous phase, as well as the effect of the compounds on the bilayer viscoelasticity. The analysis was based on the interpretation of the impedance of the crystal, utilizing the 5th, 7th and 9th overtone of the fundamental 5MHz resonance frequency.

AB - The interaction of two drugs of small molecular size, propranolol and tetracaine, and the membrane-perturbing peptide melittin with a phospholipid bilayer supported on a SiO2 surface was studied with the quartz crystal microbalance. All three bioactive compounds interacted with the lipid bilayer and changed its viscoelastic properties. Adsorbed mass of the compounds was analyzed with a viscoelastic model as a function of the concentration of the compounds in the aqueous phase, as well as the effect of the compounds on the bilayer viscoelasticity. The analysis was based on the interpretation of the impedance of the crystal, utilizing the 5th, 7th and 9th overtone of the fundamental 5MHz resonance frequency.

KW - Adsorption

KW - Phospholipid bilayer

KW - Quartz crystal microbalance

KW - Viscoelasticity

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DO - 10.1016/j.colsurfb.2011.04.012

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AN - SCOPUS:79957635899

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JO - Colloids and Surfaces B: Biointerfaces

JF - Colloids and Surfaces B: Biointerfaces

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ER -

An impedance QCM study on the partitioning of bioactive compounds in supported phospholipid bilayers

Abstract

Keywords

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