Free-standing biomimetic polymer membrane imaged with atomic force microscopy

Christian Rein; Kamila Pszon-Bartosz; Karin Bagger Stibius Jensen; Thomas Bjørnholm; Claus Hélix-Nielsen

doi:10.1021/la103632q

Free-standing biomimetic polymer membrane imaged with atomic force microscopy

Christian Rein, Kamila Pszon-Bartosz, Karin Bagger Stibius Jensen, Thomas Bjørnholm, Claus Hélix-Nielsen

14 Citations (Scopus)

Abstract

Fluid polymeric biomimetic membranes are probed with atomic force microscopy (AFM) using probes with both normal tetrahedrally shaped tips and nanoneedle-shaped Ag(2)Ga rods. When using nanoneedle probes, the collected force volume data show three distinct membrane regions which match the expected membrane structure when spanning an aperture in a hydrophobic scaffold. The method used provides a general method for mapping attractive fluid surfaces. In particular, the nanoneedle probing allows for characterization of free-standing biomimetic membranes with thickness on the nanometer scale suspended over 300-µm-wide apertures, where the membranes are stable toward hundreds of nanoindentations without breakage.

Original language	English
Journal	Langmuir
Volume	27
Issue number	2
Pages (from-to)	499-503
Number of pages	5
ISSN	0743-7463
DOIs	https://doi.org/10.1021/la103632q
Publication status	Published - 18 Jan 2011

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10.1021/la103632q

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title = "Free-standing biomimetic polymer membrane imaged with atomic force microscopy",

abstract = "Fluid polymeric biomimetic membranes are probed with atomic force microscopy (AFM) using probes with both normal tetrahedrally shaped tips and nanoneedle-shaped Ag(2)Ga rods. When using nanoneedle probes, the collected force volume data show three distinct membrane regions which match the expected membrane structure when spanning an aperture in a hydrophobic scaffold. The method used provides a general method for mapping attractive fluid surfaces. In particular, the nanoneedle probing allows for characterization of free-standing biomimetic membranes with thickness on the nanometer scale suspended over 300-µm-wide apertures, where the membranes are stable toward hundreds of nanoindentations without breakage.",

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T1 - Free-standing biomimetic polymer membrane imaged with atomic force microscopy

AU - Rein, Christian

AU - Pszon-Bartosz, Kamila

AU - Jensen, Karin Bagger Stibius

AU - Bjørnholm, Thomas

AU - Hélix-Nielsen, Claus

PY - 2011/1/18

Y1 - 2011/1/18

N2 - Fluid polymeric biomimetic membranes are probed with atomic force microscopy (AFM) using probes with both normal tetrahedrally shaped tips and nanoneedle-shaped Ag(2)Ga rods. When using nanoneedle probes, the collected force volume data show three distinct membrane regions which match the expected membrane structure when spanning an aperture in a hydrophobic scaffold. The method used provides a general method for mapping attractive fluid surfaces. In particular, the nanoneedle probing allows for characterization of free-standing biomimetic membranes with thickness on the nanometer scale suspended over 300-µm-wide apertures, where the membranes are stable toward hundreds of nanoindentations without breakage.

AB - Fluid polymeric biomimetic membranes are probed with atomic force microscopy (AFM) using probes with both normal tetrahedrally shaped tips and nanoneedle-shaped Ag(2)Ga rods. When using nanoneedle probes, the collected force volume data show three distinct membrane regions which match the expected membrane structure when spanning an aperture in a hydrophobic scaffold. The method used provides a general method for mapping attractive fluid surfaces. In particular, the nanoneedle probing allows for characterization of free-standing biomimetic membranes with thickness on the nanometer scale suspended over 300-µm-wide apertures, where the membranes are stable toward hundreds of nanoindentations without breakage.

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JO - Langmuir

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Free-standing biomimetic polymer membrane imaged with atomic force microscopy

Abstract

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