Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Measurements of Strain01:27

Measurements of Strain

2.3K
Strain quantifies the deformation of a material under force, typically measured as normal strain, which represents the change in length when compared with the original length. Electrical strain gauges are used for enhanced accuracy. These devices consist of a conductive wire mounted on a paper backing that adheres to the material's surface. These gauges operate on the piezoresistive effect, where the wire's electrical resistance changes in response to mechanical deformation. The strain...
2.3K
Design Example: Strain Gauge Bridge or Wheatstone Bridge01:15

Design Example: Strain Gauge Bridge or Wheatstone Bridge

613
The utilization of strain gauges as transducers for converting mechanical strain into electrical signals is a common practice in various engineering applications. These strain gauges are frequently integrated into Wheatstone bridge circuits to accurately measure parameters such as force or pressure. Within this context, each element within the circuit exhibits a resistance that undergoes subtle variations when subjected to mechanical strain. The primary objective is to convert minuscule...
613

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Developmental chronology of mouse embryo from 2-cell stage through birth.

Nature cell biology·2026
Same author

Standardizing a Four-Marker Basophil Activation Test: Influence of Storage Time, Temperature, and IgE Levels.

Journal of asthma and allergy·2026
Same author

ValveCCI-seq: An Advanced Microfluidic Approach for Deciphering Cell-Cell Interactions.

Analytical chemistry·2026
Same author

A single-cell time-series atlas of endothelial cell embryonic development.

Cell·2026
Same author

Electrophysiological monitoring of trigeminal nerve sensory root using sensory-masseter response for microvascular decompression in trigeminal neuralgia.

Acta neurochirurgica·2026
Same author

Corrigendum to "Spatiotemporal dynamics of neuron differentiation and migration in the developing human spinal cord" [J. Genet. Genom. 52 (2025) 1283-1295].

Journal of genetics and genomics = Yi chuan xue bao·2025

Related Experiment Video

Updated: Oct 9, 2025

Strain Sensing Based on Multiscale Composite Materials Reinforced with Graphene Nanoplatelets
09:38

Strain Sensing Based on Multiscale Composite Materials Reinforced with Graphene Nanoplatelets

Published on: November 7, 2016

8.9K

Fingerprint-Inspired Strain Sensor with Balanced Sensitivity and Strain Range Using Laser-Induced Graphene.

Wentao Wang1, Longsheng Lu1, Zehong Li1

  • 1School of Mechanical & Automotive Engineering, South China University of Technology, 381#Wushan Road, Guangzhou 510641, China.

ACS Applied Materials & Interfaces
|December 21, 2021
PubMed
Summary

Inspired by human fingertips, a novel fingerprint-structured laser-induced graphene sensor achieves high sensitivity and a wide strain range. This flexible electronic sensor demonstrates reliable performance for various real-world applications.

Keywords:
bioinspired structurelaser-induced graphenemicrocrackresistivestrain sensor

More Related Videos

Production of a Strain-Measuring Device with an Improved 3D Printer
06:17

Production of a Strain-Measuring Device with an Improved 3D Printer

Published on: January 30, 2020

6.3K
A Random-displacement Measurement by Combining a Magnetic Scale and Two Fiber Bragg Gratings
08:23

A Random-displacement Measurement by Combining a Magnetic Scale and Two Fiber Bragg Gratings

Published on: September 30, 2019

6.4K

Related Experiment Videos

Last Updated: Oct 9, 2025

Strain Sensing Based on Multiscale Composite Materials Reinforced with Graphene Nanoplatelets
09:38

Strain Sensing Based on Multiscale Composite Materials Reinforced with Graphene Nanoplatelets

Published on: November 7, 2016

8.9K
Production of a Strain-Measuring Device with an Improved 3D Printer
06:17

Production of a Strain-Measuring Device with an Improved 3D Printer

Published on: January 30, 2020

6.3K
A Random-displacement Measurement by Combining a Magnetic Scale and Two Fiber Bragg Gratings
08:23

A Random-displacement Measurement by Combining a Magnetic Scale and Two Fiber Bragg Gratings

Published on: September 30, 2019

6.4K

Area of Science:

  • Materials Science
  • Nanotechnology
  • Sensor Technology

Background:

  • Achieving high sensitivity and a broad strain range in flexible strain sensors presents a significant challenge, as improvements in one often compromise the other.
  • The natural fingerprint pattern on human fingertips enhances tactile sensitivity and elasticity, offering a biomimetic design principle.

Purpose of the Study:

  • To develop a novel resistive strain sensor inspired by the fingerprint structure of human fingertips.
  • To investigate the performance characteristics, including sensitivity, strain range, response time, and reliability, of the developed sensor.

Main Methods:

  • Fabrication of a fingerprint-structured laser-induced graphene (LIG) on a polyimide (PI) film in a single step.
  • Transferring the LIG structure onto an Ecoflex substrate to create a flexible resistive strain sensor.
  • Experimental evaluation of the sensor's response time, gauge factor across different strain ranges, and long-term reliability through cyclic testing.

Main Results:

  • The fingerprint-inspired strain sensor achieved a rapid response time of approximately 70 ms.
  • A balanced performance was observed with a notable gauge factor of 191.55 within a wide strain range of 42-50%.
  • The sensor demonstrated excellent reliability, withstanding over 1500 cycles of stretching and releasing.

Conclusions:

  • The fingerprint-inspired LIG strain sensor successfully overcomes the typical trade-off between sensitivity and strain range.
  • The sensor's robust performance was validated through real-time monitoring of physiological signals (pulses) and human movements (gestures, voice recognition).
  • This biomimetic design offers a promising pathway for developing advanced flexible electronics with enhanced sensing capabilities.