期刊
LANGMUIR
卷 27, 期 2, 页码 499-503出版社
AMER CHEMICAL SOC
DOI: 10.1021/la103632q
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资金
- MEMBAQ
- European Commission [NMP4-CT-2006-033234]
- Danish National Advanced Technology Foundation [023-2007-1]
- Danish National Research Foundation
- Environment & Water Industry Development Council of Singapore (EWI) [MEWR 651/06/169]
Fluid polymeric biomimetic membranes are probed with atomic force microscopy (AFM) using probes with both normal tetrahedrally shaped tips and nanoneedle-shaped Ag2Ga 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-mu m-wide apertures, where the membranes are stable toward hundreds of nanoindentations without breakage.
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