An end-grafted DNA molecule (red) is scraped and stretched by the spreading front of a spherical bioadhesive molecule (blue), which is attached to a protein surface by short polymer anchors (yellow).

From the article:

Scraping and Stapling of End-Grafted DNA Chains by a Bioadhesive Spreading Vesicle to Reveal Chain Internal Friction and Topological Complexity
Gimoon Nam, Marie Laure Hisette, Yuting Liang Sun, Thomas Gisler, Albert Johner, Fabrice Thalmann, André Pierre Schröder, Carlos Manuel Marques, and Nam-Kyung Lee
Phys. Rev. Lett. 105, 088101 (2010)

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