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Related Experiment Video

Updated: Jul 12, 2026

Biomechanical Characterization of Human Soft Tissues Using Indentation and Tensile Testing
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A Method to Evaluate Skin and Skin Substitute Mechanical Properties Using a Suction Device.

Vivienne Woodtli1,2,3,4, David Sachs5, Alberto Stracuzzi5

  • 1Pediatric Burn Center, Children's Skin Center, Department of Surgery, University Children's Hospital Zurich, University of Zurich, Zurich, Switzerland.

Methods in Molecular Biology (Clifton, N.J.)
|April 10, 2025
PubMed
Summary

This study introduces the Nimble device for objectively measuring skin mechanical properties like elasticity and firmness. This method aids in the precise clinical assessment of scar quality in tissue engineering applications.

Keywords:
Mechanical skin responseScar qualitySkin elasticitySkin substitute mechanical propertySuction device

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Area of Science:

  • Biomedical Engineering
  • Dermatology
  • Tissue Engineering

Background:

  • Objective scar quality assessment is crucial for optimizing skin tissue engineering.
  • Mechanical properties such as elasticity and firmness are key indicators of skin quality.
  • Current assessment methods may lack precision and objectivity.

Purpose of the Study:

  • To introduce a novel measurement protocol for the clinical assessment of skin mechanical properties.
  • To detail the operation of the Nimble device for quantitative evaluation of skin elasticity and firmness.
  • To provide guidance on interpreting data for effective scar quality assessment.

Main Methods:

  • Utilizing a suction device, termed the Nimble, to apply controlled negative pressure.
  • Elevating the skin or skin substitutes to a predetermined level using the device.
  • Quantitatively measuring mechanical characteristics including elasticity and firmness.

Main Results:

  • The Nimble device enables objective and precise measurement of skin mechanical properties.
  • The protocol allows for quantitative data collection on skin elasticity and firmness.
  • Data interpretation guidelines are provided for scar quality assessment.

Conclusions:

  • The Nimble device offers a valuable tool for the objective assessment of scar quality.
  • This protocol enhances the evaluation of skin substitutes in tissue engineering.
  • Precise mechanical property measurement contributes to improved clinical outcomes.