Effect of leaning angle of gecko-inspired slanted polymer nanohairs on dry adhesion

Hoon Eui Jeong, Jin-Kwan Lee, Moon Kyu Kwak, Sang Heup Moon, Kahp Yang Suh

Research output: Contribution to journalArticlepeer-review

53 Scopus citations


We present analysis of adhesion properties of angled polymer nanohairs with a wide range of leaning angles from 0° to 45° and ultraviolet (UV)-curable polyurethane acrylate (PUA) materials of two different elastic moduli (19.8 and 320 MPa). It is demonstrated that shear adhesion and adhesion hysteresis can be greatly enhanced by increasing the leaning angle of nanohairs both for soft and hard materials due to increased contact area and reduced structural stiffness. © 2010 American Institute of Physics.
Original languageEnglish (US)
Pages (from-to)043704
JournalApplied Physics Letters
Issue number4
StatePublished - Feb 1 2010
Externally publishedYes

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledged KAUST grant number(s): KUK-F1-037-02
Acknowledgements: This work was supported by the Nano R&D Program (Grant No. 2007-02605), the Center for Nanoscale Mechatronics & Manufacturing (Grant No. 08K1401-00210), and King Abdullah University of Science and Technology (KAUST) program (Grant No. KUK-F1-037-02). This work was also supported in part by the Center for Ultramicrochemical Process Systems.
This publication acknowledges KAUST support, but has no KAUST affiliated authors.


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