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

Problem Solving on Stress and Strain01:22

Problem Solving on Stress and Strain

Stress is a quantity that describes the magnitude of a force that causes deformation, generally defined as internal force per unit area. When forces pull on an object and cause its elongation, like the stretching of an elastic band, it is called tensile stress. When forces cause the compression of an object, it is known as compressive stress. When an object is being squeezed uniformly from all sides, like a submarine in the depths of the ocean, we call this kind of stress bulk stress (or volume...
Stress-Strain Diagram - Ductile Materials01:24

Stress-Strain Diagram - Ductile Materials

The stress-strain relationship in ductile materials such as structural steel or aluminium is intricate and progresses through several stages. When a specimen is loaded, it initially exhibits a linear length increase, depicted by a steep straight line on the stress-strain diagram. It indicates the material is elastically deforming and will return to its original shape once unloaded. However, when a critical stress value is reached, plastic deformation begins. This stage sees substantial...
Thermal Strain01:19

Thermal Strain

Thermal strain is a concept that arises when we consider how temperature changes affect structures. Unlike the conventional assumption that structures remain constant under load, real-world scenarios often involve temperature fluctuations that can significantly impact these structures. Consider a homogeneous rod with a uniform cross-section resting freely on a flat horizontal surface. If the rod's temperature increases, the rod elongates. This elongation is proportional to the temperature...
Shearing Strain01:20

Shearing Strain

The shearing strain represents a cubic element's angular change when subjected to shearing stress. This type of stress can transform a cube into an oblique parallelepiped without influencing normal strains. The cubic element experiences a significant transformation when exposed solely to shearing stress. Its shape alters from a perfect cube into a rhomboid, clearly demonstrating the effect of shearing strain. The degree of this strain is considered positive if it reduces the angle between the...
Measurements of Strain01:27

Measurements of Strain

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 gauge...
Strain Energy01:13

Strain Energy

Strain energy is a fundamental concept in the field of materials science and structural engineering, describing the energy absorbed by a material or structure when it is deformed under load.
Consider a rod that is fixed at one end and subjected to an axial force at the free end. This axial force induces stress within the rod, leading to its elongation. As the axial force increases, so does the elongation of the rod, illustrating a direct relationship between the force applied and the resulting...

You might also read

Related Articles

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

Sort by
Same author

Mechanophore cross-linking enhances ballistic energy dissipation of polymers.

Nature·2026
Same author

Fracture of polymer-like networks with hybrid bond strengths.

Journal of the mechanics and physics of solids·2026
Same author

Editor's Note: Antitumor Activity of Suberoylanilide Hydroxamic Acid against Thyroid Cancer Cell Lines In vitro and In vivo.

Clinical cancer research : an official journal of the American Association for Cancer Research·2026
Same author

Observational and modelled insights of volatile organic compounds into seasonal atmospheric oxidation capacity and radical chemistry over North China.

Journal of environmental sciences (China)·2026
Same author

Optimizing the Stability of Viral Nanoparticles: Engineering Strategies, Applications, and the Emerging Concept of the Virophore.

Journal of the American Chemical Society·2026
Same author

Switching and Quantifying the Single-Molecule Mechanochemical Reactivity of Four-Membered Carbocycle Mechanophores within a Single, Photoswitchable Polymer Strand.

Journal of the American Chemical Society·2025
Same journal

RETRACTED: Atta et al. Effect of Montmorillonite Nanogel Composite Fillers on the Protection Performance of Epoxy Coatings on Steel Pipelines. <i>Molecules</i> 2017, <i>22</i>, 905.

Molecules (Basel, Switzerland)·2026
Same journal

Correction: Chen et al. Chemical Composition of <i>Litsea pungens</i> Essential Oil and Its Potential Antioxidant and Antimicrobial Activities. <i>Molecules</i> 2023, <i>28</i>, 6835.

Molecules (Basel, Switzerland)·2026
Same journal

Correction: Ruan et al. Comparison of Extraction, Isolation, Purification, Structural Characterization and Immunomodulatory Activity of Polysaccharides from Two Species of <i>Cistanche</i>. <i>Molecules</i> 2025, <i>30</i>, 4754.

Molecules (Basel, Switzerland)·2026
Same journal

Correction: Li et al. Gastrodin Ameliorates Cognitive Dysfunction in Vascular Dementia Rats by Suppressing Ferroptosis via the Regulation of the Nrf2/Keap1-GPx4 Signaling Pathway. <i>Molecules</i> 2022, <i>27</i>, 6311.

Molecules (Basel, Switzerland)·2026
Same journal

Correction: Zueva et al. Steady-State Kinetics of Enzyme-Catalyzed Hydrolysis of Echothiophate, a P-S Bonded Organophosphorus as Monitored by Spectrofluorimetry. <i>Molecules</i> 2020, <i>25</i>, 1371.

Molecules (Basel, Switzerland)·2026
Same journal

1,4-Diazatriphenylene and Its Hetero-Fused Analogs: Synthesis and Applications.

Molecules (Basel, Switzerland)·2026
See all related articles

Related Experiment Video

Updated: Jul 2, 2026

Studying Large Amplitude Oscillatory Shear Response of Soft Materials
06:07

Studying Large Amplitude Oscillatory Shear Response of Soft Materials

Published on: April 25, 2019

'Seeing' Strain in Soft Materials.

Zhiyong Xia1, Vanessa D Alphonse2, Doug B Trigg3

  • 1Applied Physics Laboratory, The Johns Hopkins University, Laurel, MD 20723, USA. Zhiyong.Xia@jhuapl.edu.

Molecules (Basel, Switzerland)
|February 6, 2019
PubMed
Summary
This summary is machine-generated.

A novel passive strain sensor using poly(dimethyl siloxane) (PDMS) and spiropyran (SP) can measure high-rate impact strains. This reversible color-changing sensor offers a new method for quantifying material deformation, potentially aiding traumatic brain injury research.

Keywords:
impact strainmechanophorepoly(dimethyl siloxane)spiropyranstrain sensing

More Related Videos

High-resolution Imaging of Nuclear Dynamics in Live Cells under Uniaxial Tensile Strain
09:20

High-resolution Imaging of Nuclear Dynamics in Live Cells under Uniaxial Tensile Strain

Published on: June 2, 2019

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

Related Experiment Videos

Last Updated: Jul 2, 2026

Studying Large Amplitude Oscillatory Shear Response of Soft Materials
06:07

Studying Large Amplitude Oscillatory Shear Response of Soft Materials

Published on: April 25, 2019

High-resolution Imaging of Nuclear Dynamics in Live Cells under Uniaxial Tensile Strain
09:20

High-resolution Imaging of Nuclear Dynamics in Live Cells under Uniaxial Tensile Strain

Published on: June 2, 2019

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

Area of Science:

  • Materials Science
  • Mechanical Engineering
  • Biomedical Engineering

Background:

  • Existing methods for measuring soft material strain under impact lack continuous 3D spatial distribution.
  • High-rate impact testing of soft materials is crucial for understanding material behavior and failure.

Purpose of the Study:

  • To develop a novel passive strain sensor for measuring impact-induced strains in soft materials.
  • To demonstrate the sensor's capability to provide continuous 3D spatial strain data.

Main Methods:

  • Incorporation of spiropyran (SP) mechanophore into poly(dimethyl siloxane) (PDMS) elastomer.
  • Utilizing the reversible color change of SP in PDMS to quantify strain under high strain rates (up to 1500 s⁻¹).
  • High-speed imaging to capture dynamic strain events.

Main Results:

  • A novel PDMS-based passive strain sensor with covalently incorporated SP was successfully developed.
  • The sensor demonstrated the ability to measure impact strains via a reversible color change at strain rates up to 1500 s⁻¹ within milliseconds.
  • The SP incorporation at 0.25 wt% was found to be effective for strain measurement.

Conclusions:

  • The developed passive strain sensor offers a new, continuous, and reversible method for quantifying high-rate impact strains in soft materials.
  • This technology has significant potential for applications such as quantifying brain strain in traumatic brain injury research.
  • The sensor overcomes limitations of existing technologies by providing continuous 3D spatial strain distribution data.