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Bio-Inspired Interlocking Micro-Patterning for Tunable, Switchable and Selective Adhesion in Wet and Dusty

Marco Bruno^1,2, Luigi Portaluri^1,2, Massimo De Vittorio^1,2

¹University of Salento, Department of Engineering for Innovation, Via per Monteroni, Lecce (LE), 73100, Italy.

Small (Weinheim an Der Bergstrasse, Germany)

|February 27, 2025

Summary

This summary is machine-generated.

This study introduces bio-inspired mechanical adhesion for challenging environments. It offers tunable, switchable adhesion solutions mimicking nature for applications where traditional adhesives fail.

Keywords:

adhesion in dust bio‐inspired adhesion mechanical adhesion pattern grasping underwater adhesion

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Area of Science:

Materials Science
Biomimetics
Adhesion Science

Background:

Adhesion is critical in diverse applications, but challenging in wet, dusty, or vacuum environments.
Conventional adhesives often fail under conditions where van der Waals forces are weak or absent.
Nature provides examples of robust adhesion through surface morphology and mechanical interlocking.

Purpose of the Study:

To provide design and fabrication fundamentals for tunable, switchable, and robust mechanical adhesion.
To develop bio-mimicking solutions for adhesion in challenging environmental conditions.
To establish a theoretical framework for designing mechanical adhesion.

Main Methods:

Bio-mimicking natural solutions for surface morphology.
Developing tunable and switchable adhesion mechanisms.
Utilizing mean-field continuum contact mechanics for theoretical framework.
Experimental validation of the theoretical framework.

Main Results:

Demonstrated design principles for mechanical adhesion adaptable to wet or dusty conditions.
Validated a theoretical framework based on continuum contact mechanics.
Achieved tunable and switchable adhesion by mimicking natural strategies.

Conclusions:

This work offers a pathway to novel adhesion technologies for extreme environments.
The developed methods are applicable to surfaces exposed to water, dust, vacuum, and high temperatures.
Potential applications include aerospace, robotics, and semiconductor manufacturing requiring selective adhesion.