Quantitative nanoscale dielectric microscopy of single-layer supported biomembranes.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 19271767.
- Also identified by DOI 10.1021/nl803851u.
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Abstract
We present the experimental demonstration of low-frequency dielectric constant imaging of single-layer supported biomembranes at the nanoscale. The dielectric constant image has been quantitatively reconstructed by combining the thickness and local capacitance obtained using a scanning force microscope equipped with a sub-attofarad low-frequency capacitance detector. This work opens new possibilities for studying bioelectric phenomena and the dielectric properties of biological membranes at the nanoscale.
Medical subject headings
- Cell Membrane
- Microscopy
- Nanotechnology