Mapping Depletion of Lubricant Films on Antibiofouling Wrinkled Slippery Surfaces

ACS Applied Materials & Interfaces
Sam Peppou-Chapman, Chiara Neto

Abstract

Slippery liquid infused porous surfaces (SLIPS) have recently gained a lot of attention because of their wide range of applications. We recently showed that SLIPS with most of their surface depleted of lubricant, as little lubricant as 0.02 ± 0.01 μL cm-1, were effective against marine biofouling. Characterization of the depletion and configuration of the immobilized liquid layer on SLIPS is crucial to optimizing their performance. Previous attempts at mapping lubricant thickness have been diffraction limited or indirectly measured thickness. Here, we use atomic force microscopy meniscus force measurements to directly map lubricant thickness with nanoscale resolution on wrinkled surfaces made from Teflon and poly(4-vinylpyridine) (P4VP). Using this method, we show that SLIPS are easily depleted and are effectively heterogeneous surfaces, where the majority of the surface is a thick lubricating layer stabilized by capillary forces and part nanothin layer stabilized long-range intermolecular forces. We found that the depleted silicone oil thickness on the tops of nonwettable (Teflon) wrinkles is approx. 5 nm, close to but greater than the minimum measurable thickness of approx. 3 nm. The silicone oil thickness on the tops of wett...Continue Reading

References

Jun 21, 2001·Physical Review Letters·R SeemannK Jacobs
Nov 3, 2004·Langmuir : the ACS Journal of Surfaces and Colloids·Yuekan Jiao, Tilman E Schäffer
Aug 1, 2012·Proceedings of the National Academy of Sciences of the United States of America·Alexander K EpsteinJoanna Aizenberg
May 9, 2015·Physical Review Letters·Jason S WexlerHoward A Stone
May 28, 2015·Soft Matter·Jason S WexlerHoward A Stone
Aug 21, 2015·Soft Matter·Frank SchellenbergerDoris Vollmer
Feb 26, 2016·ACS Applied Materials & Interfaces·Liam R J ScarrattChiara Neto
Mar 30, 2016·Experimental Biology and Medicine·Irini SotiriCaitlin Howell
May 18, 2016·Scientific Reports·JiaLi YinChun Hung Chu
Nov 25, 2016·Micron : the International Research and Review Journal for Microscopy·Brunero Cappella
Aug 19, 2017·Science·Shahrouz AminiAli Miserez
Dec 2, 2017·Journal of Biotechnology·Sissi MiguelFrédéric Bourgaud
Dec 19, 2017·ACS Applied Materials & Interfaces·Cameron S WareChiara Neto

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Citations

Aug 1, 2020·Soft Matter·Muhammad Subkhi SadullahHalim Kusumaatmaja
May 16, 2019·Soft Matter·Jianxing Sun, Patricia B Weisensee
Mar 9, 2021·Langmuir : the ACS Journal of Surfaces and Colloids·Sam Peppou-Chapman, Chiara Neto
Aug 6, 2021·ACS Applied Materials & Interfaces·Hanyang ZhaoNenad Miljkovic
Aug 11, 2021·Langmuir : the ACS Journal of Surfaces and Colloids·Xingyang XuJun Wang
Feb 6, 2019·Langmuir : the ACS Journal of Surfaces and Colloids·Liam R J ScarrattChiara Neto
Jun 10, 2020·ACS Applied Materials & Interfaces·Henri-Louis GirardKripa K Varanasi
May 21, 2020·Langmuir : the ACS Journal of Surfaces and Colloids·Liam R J ScarrattChiara Neto
Nov 19, 2020·Nano Letters·William S Y WongDoris Vollmer
Oct 27, 2021·Langmuir : the ACS Journal of Surfaces and Colloids·Jianxing SunPatricia B Weisensee

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