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Flows of molecular fluids in nano- structured channels

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Barthlott & Nienhuis 1997: ‘Purity <strong>of</strong> the sacred lotus, or<br />

escape from contam<strong>in</strong>ation <strong>in</strong> biological surfaces’<br />

Querre 2002<br />

Super-hydrophobic<br />

Contact angles > 90 o<br />

The surface <strong>of</strong> a lotus<br />

leaf is always clean<br />

Droplets collect<br />

hydrophilic dirt<br />

<strong>nano</strong>- and micro structures<br />

SEM image

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