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

Plasticity00:58

Plasticity

3.1K
Plasticity is the property where an object loses its elasticity and undergoes irreversible deformation, even after the deformation forces are eliminated. If a material deforms irreversibly without increasing stress or load, then this is called ideal plasticity. For example, when a force is applied to an aluminum rod, it changes its shape, but it does not return to its original shape once the force is removed. Plastic deformation or ductility is thus a permanent deformation or change in the...
3.1K
Plasticizers01:31

Plasticizers

378
Water-reducers, or plasticizers, are chemical admixtures used in concrete to improve strength and workability. These additives reduce the water-cement ratio without compromising workability, lower the cement content while maintaining the same workability, or increase workability to assist concrete placement in inaccessible areas.
Plasticizers function by using surface-active agents to create repulsive electrostatic forces between cement particles. This dispersion enhances the concrete's...
378
Plastic Behavior01:21

Plastic Behavior

585
A material's elastic behavior is characterized by the disappearance of stress once the load is removed, allowing the material to return to its original state. However, when stress surpasses the yield point, yielding commences, marking the onset of plastic deformation or permanent set. This change from elastic to plastic behavior is influenced by the peak stress value and the duration before the load is removed. An intriguing observation occurs when a specimen is loaded, unloaded, and...
585
Plastic Deformations01:14

Plastic Deformations

477
It is essential to understand how structural members behave under plastic deformation when the bending stress exceeds the material's yield strength. This state of deformation permanently alters the shape of the member, in contrast to the linear elastic behavior observed before yielding. The strain at any point in the member is expressed in terms of maximum strain. Notably, the neutral axis, which coincides with the centroid during elastic bending, shifts away from the centroid under plastic...
477
Plastic Deformations01:19

Plastic Deformations

477
Plastic deformation represents a fundamental concept in materials science, which explains the irreversible change in the shape of a material when it experiences stress beyond its elastic capability. This phenomenon is important in structural engineering, especially in designing and analyzing cantilever beams—structures that are securely fixed at one end and bear loads at the opposite end. When these beams are subjected to loads within their elastic range, they will return to their...
477
Standard Electrode Potentials03:02

Standard Electrode Potentials

50.5K
On comparing the reactivity of silver and lead, it is observed that the two ionic species, Ag+ (aq) and Pb2+ (aq), show a difference in their redox reactivity towards copper: the silver ion undergoes spontaneous reduction, while the lead ion does not. This relative redox activity can be easily quantified in electrochemical cells by a property called cell potential. This property is commonly known as cell voltage in electrochemistry, and it is a measure of the energy which accompanies the charge...
50.5K

You might also read

Related Articles

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

Sort by
Same author

Connecting and Engaging.

ACS nano·2026
Same author

Announcing the 2026 <i>ACS Nano</i> Lectureship and <i>ACS Nano</i> Impact Award Laureates.

ACS nano·2026
Same author

Announcing the 2026 <i>ACS Nano</i> Lectureship and <i>ACS Nano</i> Impact Award Laureates.

ACS nano·2026
Same author

Optical cooling by interfacial charge transfer in 2D heterostructures.

Nature·2026
Same author

Announcing the 2026 <i>ACS Nano</i> Lectureship and <i>ACS Nano</i> Impact Award Laureates.

ACS nano·2026
Same author

Announcing the 2026 <i>ACS Nano</i> Lectureship and <i>ACS Nano</i> Impact Award Laureates.

ACS nano·2026

Related Experiment Video

Updated: Feb 12, 2026

Designing Silk-silk Protein Alloy Materials for Biomedical Applications
11:14

Designing Silk-silk Protein Alloy Materials for Biomedical Applications

Published on: August 13, 2014

18.9K

Plasticizing Silk Protein for On-Skin Stretchable Electrodes.

Geng Chen1, Naoji Matsuhisa1, Zhiyuan Liu1

  • 1Innovative Centre for Flexible Devices (iFLEX), School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore.

Advanced Materials (Deerfield Beach, Fla.)
|April 1, 2018
PubMed
Summary

Researchers developed soft, stretchable on-skin electronics using plasticized silk protein. This biomaterial platform achieves high skin conformability and electrical performance for wearable devices, enabling seamless integration with the human body.

Keywords:
biomaterialsmolecular dynamics simulationson-skin electronicssilk proteinsstretchable electronics

More Related Videos

A Fabrication Method for Highly Stretchable Conductors with Silver Nanowires
07:50

A Fabrication Method for Highly Stretchable Conductors with Silver Nanowires

Published on: January 21, 2016

10.4K
In Vivo Targeted Expression of Optogenetic Proteins Using Silk/AAV Films
06:11

In Vivo Targeted Expression of Optogenetic Proteins Using Silk/AAV Films

Published on: February 26, 2019

9.1K

Related Experiment Videos

Last Updated: Feb 12, 2026

Designing Silk-silk Protein Alloy Materials for Biomedical Applications
11:14

Designing Silk-silk Protein Alloy Materials for Biomedical Applications

Published on: August 13, 2014

18.9K
A Fabrication Method for Highly Stretchable Conductors with Silver Nanowires
07:50

A Fabrication Method for Highly Stretchable Conductors with Silver Nanowires

Published on: January 21, 2016

10.4K
In Vivo Targeted Expression of Optogenetic Proteins Using Silk/AAV Films
06:11

In Vivo Targeted Expression of Optogenetic Proteins Using Silk/AAV Films

Published on: February 26, 2019

9.1K

Area of Science:

  • Biomaterials Science
  • Wearable Electronics
  • Materials Engineering

Background:

  • Soft and stretchable electronics are crucial for wearable and implantable applications due to their skin conformability.
  • Silk protein offers biocompatibility and biodegradability, making it a promising material for electronic devices.
  • Existing silk-based electronics face limitations due to mechanical mismatch with skin and integration challenges.

Purpose of the Study:

  • To develop highly skin-conformable and stretchable electronic devices using silk protein as a substrate.
  • To overcome the mechanical limitations of silk protein for on-skin electronic applications.
  • To achieve high-performance electrophysiological recording with silk-based electronics.

Main Methods:

  • Plasticization of silk protein by incorporating CaCl2 and utilizing ambient hydration to tune mechanical properties.
  • Molecular dynamics simulations to investigate the plasticization mechanism.
  • Thin-film metallization and controlled wrinkling for creating stretchable electrodes.
  • On-skin electrophysiological recording using the developed silk-based devices.

Main Results:

  • Silk protein's Young's modulus was reduced from 5-12 GPa to 0.1-2 MPa, and stretchability increased to over 400%.
  • Highly stretchable electrodes (>100%) were successfully fabricated on the plasticized silk substrate.
  • The silk-based electrodes demonstrated on-skin electrophysiological recording performance comparable to commercial gel electrodes.
  • The plasticized silk exhibited excellent skin conformability and mechanical properties suitable for wearable electronics.

Conclusions:

  • Plasticized silk protein is a viable and effective substrate for creating soft, stretchable, and skin-conformable electronic devices.
  • The developed silk-based electronics offer a promising platform for advanced wearable and implantable applications.
  • This work facilitates the harmonious integration of electronics into the human body through advanced biomaterials.