black membrane
An artificial (phospho) lipid membrane formed by `painting\' a solution of phospholipid in organic solvent over a hole in a hydrophobic support immersed in water. Drainage of the solvent from the film produces diffraction colours until the thickness falls below the wavelength of light - it then appears to be black. The structure is an extended bimolecular leaflet.

Dictionary of molecular biology. 2004.

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