Dynamic Friction Performance of Hierarchical Biomimetic Surface Pattern Inspired by Frog Toe‐Pad

  title={Dynamic Friction Performance of Hierarchical Biomimetic Surface Pattern Inspired by Frog Toe‐Pad},
  author={Arnob Banik and K. T. Tan},
  journal={Advanced Materials Interfaces},
  • A. BanikK. Tan
  • Published 23 August 2020
  • Engineering
  • Advanced Materials Interfaces
In this study, the dynamic friction performance of frog toe‐pad inspired surface patterns is investigated in three folds. First, frog toe‐pad morphology is mimicked, designed, and fabricated using 3D printing technology. Friction coefficients of the models are measured experimentally over a wet medium, with varying velocity, load, and sliding direction. Furthermore, time is recorded to reach a 5 mm height by the water flow through a steady model in another experimental set‐up. Second, numerical… 

Decision letter for "Numerical investigation of squeeze film lubrication on bioinspired hexagonal patterned surface"

Purpose This paper aims to investigate the squeeze film lubrication properties of hexagonal patterned surface inspired by the epidermis structure of tree frog’s toe pad and numerically explore the



Use of biomimetic hexagonal surface texture in friction against lubricated skin

The hexagonal surface texture is recognized as a friction-oriented feature capable of suppressing both stick–slip and hydroplaning while enabling friction tuning, and this design of natural friction surfaces is compared to textures developed for working in similar conditions in disposable safety razors.

Nanoscale friction and adhesion of tree frog toe pads

This study investigated the adhesion and friction behavior of toe pads of White’s tree frog using atomic force microscopy (AFM) in an aqueous medium using special types of AFM probes to sense the frictional response without damaging the delicate nanopillar structures of the epithelial cells.

Bioinspired Surface for Surgical Graspers Based on the Strong Wet Friction of Tree Frog Toe Pads.

To design and fabricate a biomimetic microscale surface with strong wet friction, the wet attachment mechanism of tree frog toe pads was investigated and novel surface micropatterns were proposed for the surface of surgical graspers.

Friction Contribution to Bioinspired Mushroom‐Shaped Dry Adhesives

Bioinspired mushroom‐shaped micropillar recently has attracted considerable interest from researchers on adhesion‐functionalized artificial surface due to its prominent dry adhesive property.

Bioinspired, peg-studded hexagonal patterns for wetting and friction.

Experimental results show that the hydrophilic hierarchical structure on smooth toe-pads is favorable for keeping the surface moist and increasing the interfacial friction force when climbing in wet conditions.

Adhesion and Detachment of the Toe Pads of Tree Frogs

The experiments on attachment lend general support to the theory that toe pads stick by wet adhesion, supported both by observations of peeling in single toe pads of anaesthetised frogs and by the inability of frogs to adhere to vertical surfaces in a head-down orientation.

Biomimetic Surface with Tunable Frictional Anisotropy Enabled by Photothermogenesis‐Induced Supporting Layer Rigidity Variation

Anisotropic friction of widespread biological surfaces with micro‐ and nanostructures oriented to supporting layer is proved to be crucial for the purpose of locomotion or transporting items in

Torrent Frog‐Inspired Adhesives: Attachment to Flooded Surfaces

Anatomic differences on the toe pad epithelial cells of torrent and tree frogs (elongated versus regular geometry) are believed to account for superior ability of torrent frogs to attach to surfaces

Wet but not slippery: boundary friction in tree frog adhesive toe pads

Evidence is presented that tree frog attachment forces are significantly enhanced by close contacts and boundary friction between the pad epidermis and the substrate, facilitated by the highly regular pad microstructure.

Evolution of the Coefficient of Friction with Surface Wear for Advanced Surface Textured Composites

In this study, textured composite surface with protruding fibers is developed, which exhibits extremely high coefficient of friction on ice. A novel composite material with improved wear