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Issue 29, 2019
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Highly flexible and self-adaptive dry adhesive end-effectors for precision robotics

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Abstract

Many research groups have studied biomimetic functional surfaces for practical applications. Dry adhesives inspired by the gecko foot consist of hierarchical and numerous micro/nano hairs and can achieve pull-off strengths for vertical and shear adhesion of up to 20 N cm−2. However, when detachment of the nearly dry adhesive is carried out by peeling, the pull-off strength of the dry adhesive in the tilted state is remarkably reduced. In this study, an enhanced pull-off strength dry adhesive in the tilted state was fabricated by using a strategy that reduces the restoring force from the bending moment. An experiment with various column-type dry adhesives was implemented to find the relation between the pull-off strength in the tilted state and the bending resistance of the dry adhesive. The feasibility of using a dry adhesive in the tilted state was observed through a glass-lifting experiment. This strategy could be widely utilized in many practical applications, such as robotics.

Graphical abstract: Highly flexible and self-adaptive dry adhesive end-effectors for precision robotics

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Publication details

The article was received on 28 Feb 2019, accepted on 14 Jun 2019 and first published on 17 Jun 2019


Article type: Paper
DOI: 10.1039/C9SM00431A
Soft Matter, 2019,15, 5827-5834

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    Highly flexible and self-adaptive dry adhesive end-effectors for precision robotics

    S. H. Lee, I. Hwang, B. S. Kang, H. E. Jeong and M. K. Kwak, Soft Matter, 2019, 15, 5827
    DOI: 10.1039/C9SM00431A

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