Sanhita S. Dixit, Alan W. Szmodis and Atul N. Parikh, Chem Phys. Chem 7, 1678-1681, 2006

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Probing membranes: Nonspecific interactions between glass beads and supported lipid membranes act as a simple tool to characterize their local structure and mechanical properties. The beads differentiate monolayers (see figure B) from fluid bilayers (A) by inducing a qualitatively different elastic response, characterized by undeformed binding for monolayers and membrane wrapping for bilayers.