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Updated: Feb 11, 2026

A Virtual Simulation Experiment of Mechanics: Material Deformation and Failure Based on Scanning Electron Microscopy
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Deformation Driven Suction Cups: A Mechanics-Based Approach to Wearable Electronics.

Seola Lee1,2, Andrew Akerson1, Roham Pardakhtim1

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Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
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This study introduces a novel suction adhesive system inspired by cupping therapy. It ensures stable wearable electronics attachment on diverse skin types by optimizing cup design and incorporating a soft interfacial layer.

Keywords:
contact mechanicsdry adhesivesskin‐conformal interfacesuction adhesionwearable electronics

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Area of Science:

  • Biomedical Engineering
  • Materials Science
  • Wearable Technology

Background:

  • Stable skin contact is crucial for wearable electronics in health monitoring and human-computer interaction.
  • Existing solutions like adhesives and grounding bands face challenges with skin's softness, roughness, and variability, leading to contact loss.
  • Suction adhesives offer potential but often neglect skin mechanics and assume rigid surfaces.

Purpose of the Study:

  • To develop a mechanics-based suction adhesive system for robust and versatile attachment of wearable electronics to diverse skin regions.
  • To investigate the influence of cup geometry and interfacial properties on suction performance on compliant skin.
  • To provide design principles for skin-friendly, reliable wearable electronic adhesion.

Main Methods:

  • Developed a suction adhesive system inspired by traditional cupping therapies.
  • Employed analytical modeling, finite element simulations, and experimental validation.
  • Investigated the effects of cup geometry (width, height) and interfacial layer properties on adhesion to soft substrates.
  • Characterized system performance across diverse skin regions and conditions.

Main Results:

  • Established a mechanics-based framework linking suction performance to cup geometry, substrate compliance, and adhesion.
  • Demonstrated that narrow, tall cups are superior to wide, flat cups for adhesion on soft skin.
  • Showcased that a soft, tacky interfacial layer significantly improves sealing on rough, dry skin.
  • Validated robust attachment of motion sensors, haptic actuators, and electrophysiological electrodes.

Conclusions:

  • The developed suction adhesive system provides a versatile and skin-friendly platform for next-generation wearable electronics.
  • Optimized cup geometry and interfacial design are critical for reliable suction-based adhesion on compliant and variable skin.
  • This approach overcomes limitations of conventional methods, enabling stable attachment across diverse anatomical locations.