Mechanism of Regular Pattern Formation in Reactive Dewetting

Regularly striped patterns of various dimensions and directions can emerge from the Langmuir–Blodgett transfer of phospholipids onto hydrophilic substrates under the appropriate conditions (see optical micrographs; bar=5 μm). The authors quantitatively measure the dependence of the pattern dimension...

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Bibliographic Details
Published in:Chemphyschem 2005-12, Vol.6 (12), p.2495-2498
Main Authors: Lenhert, Steven, Gleiche, Michael, Fuchs, Harald, Chi, Lifeng
Format: Article
Language:English
Subjects:
Chemistry
Exact sciences and technology
General and physical chemistry
Langmuir blodgett films
lithography
pattern formation
phase transitions
phospholipids
Surface physical chemistry
thin films
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Summary:Regularly striped patterns of various dimensions and directions can emerge from the Langmuir–Blodgett transfer of phospholipids onto hydrophilic substrates under the appropriate conditions (see optical micrographs; bar=5 μm). The authors quantitatively measure the dependence of the pattern dimensions on the transfer velocity and the surface pressure. A mechanism for pattern formation, based on the local curvature of the monolayer‐covered liquid–vapour interface in the vicinity of the three‐phase contact line, is presented.
ISSN:1439-4235
1439-7641
DOI:10.1002/cphc.200500276