Artificial leaves via reproduction of hierarchical structures by a fast molding and curing process

Macromolecular Rapid Communications
Sungjune ParkAlexander Böker

Abstract

In this work, we have developed a practical approach for the replication of hierarchical structures on a native leaf surface via a fast two-step molding process combining both the fast curability to prevent shrinkage of cells and the strong resistance to chemical compounds for further applications. The negative replica of the leaf was produced from perfluoropolyether (PFPE) by precise molding followed by a fast curing with UV. A liquid ceramic precursor material (polyvinylsilazane, PVSZ) was used to fabricate the positive leaf structure through the same process as applied for the negative imprint of the surface yielding a highly detailed replica of the native leaf surface structure. Static water contact angle measurements show that the biomimetic surfaces exhibit a wettability similar to the native leaves.

References

Feb 26, 2004·Journal of the American Chemical Society·Jason P RollandJoseph M DeSimone
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Nov 10, 2005·Nano Letters·W MingG de With
May 1, 1956·Plant Physiology·R H Schieferstein, W E Loomis
Jan 10, 2009·Langmuir : the ACS Journal of Surfaces and Colloids·Bharat BhushanKerstin Koch
Feb 10, 2009·Journal of Nanoscience and Nanotechnology·Jayakumar PerumalJae-Jong Lee
Mar 28, 2009·Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences·Kerstin Koch, Wilhelm Barthlott

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Citations

Aug 5, 2017·Materials·Marina A González LazoYves Leterrier
Oct 9, 2019·Scientific Reports·Rebecca SoffeVolker Nock

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