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

The Evidence for Evolution02:55

The Evidence for Evolution

47.7K
Genetic variations accumulating within populations over generations give rise to biological evolution. Evolutionary changes can result in the formation of novel varieties and entire new species. These changes are responsible for the diverse forms of life inhabiting the planet. The evidence for evolution suggests that all living organisms descended from common ancestors.
47.7K
Convergent Evolution01:54

Convergent Evolution

31.5K
Evolution shapes the features of organisms over time, ensuring that they are suited for the environments in which they live. Sometimes, selection pressure leads to the rise of similar but unrelated adaptations in organisms with no recent common ancestors, a process known as convergent evolution.
31.5K
Eukaryotic Evolution01:24

Eukaryotic Evolution

40.3K
The endosymbiont theory is the most widely accepted theory of eukaryotic evolution; however, its progression is still somewhat debated. According to the nucleus-first hypothesis, the ancestral prokaryote first evolved a membrane to enclose DNA and form the nucleus. Conversely, the mitochondria-first hypothesis suggests that the nucleus was formed after endosymbiosis of mitochondria.
Contrary to the endosymbiont theory, the eukaryote-first hypothesis proposes that the simpler prokaryotic and...
40.3K
Synteny and Evolution02:31

Synteny and Evolution

3.8K
John H. Renwick first coined the term “synteny” in 1971, which refers to the genes present on the same chromosomes, even if they are not genetically linked. The species with common ancestry tend to show conserved syntenic regions. Therefore, the concept of synteny is nowadays used to describe the evolutionary relationship between species.
Around 80 million years ago, the human and mice lineages diverged from the common ancestor. During the course of evolution, the ancestral...
3.8K
Contact-dependent Signaling01:19

Contact-dependent Signaling

46.9K
Contact-dependent signaling, as the name suggests, requires that communicating cells be in direct contact with each other. This is achieved either through receptor-ligand interactions or by specialized cytoplasmic channels that allow the flow of small molecules between cells. In animal cells, channels called gap junctions facilitate contact-dependent signaling in certain tissues, whereas, plasmodesmata perform a similar function in plants.
Gap Junctions
In animal cells, gap junctions are formed...
46.9K
Contact Angle01:13

Contact Angle

18.3K
When a solid is dipped inside a liquid, the liquid surface becomes curved near the contact. For some solid–liquid interfaces, the liquid is pulled up along the solid, while for others, the liquid surface is convex or depressed near the solid surface. This phenomenon can be explained using the concept of cohesive and adhesive forces.
The adhesive force is the molecular force between molecules of different materials, that is, between the molecules of the solid and the liquid. The cohesive...
18.3K

You might also read

Related Articles

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

Sort by
Same author

Effect of Risks, Consequences, and Gravitational Priors on Sensorimotor Coordination: Insights from Weightlessness.

The Journal of neuroscience : the official journal of the Society for Neuroscience·2026
Same author

Effects of an intensive therapy on the precision grip control while walking down a step in children with unilateral cerebral palsy: a self-controlled study.

Experimental brain research·2026
Same author

A systematic review of artificial intelligence in child and adolescent interventions: from psychotherapy to developmental support.

European child & adolescent psychiatry·2026
Same author

3-D Reconstruction of Fingertip Deformation During Contact Initiation.

Multisensory research·2025
Same author

Interference between Flexible and Adaptive Reaching Control.

eNeuro·2025
Same author

ABILHAND-kids young CP: a measure of manual ability in young children with cerebral palsy aged 2 to 7.

Journal of rehabilitation medicine·2025
Same journal

RNA-ligand complexes and the attenuation of neutral confinement in the evolution of RNA secondary structures.

Journal of the Royal Society, Interface·2026
Same journal

Individual detachment-reintegration events in homing pigeon flocks and the dominance of directional adjustment in their kinematic features.

Journal of the Royal Society, Interface·2026
Same journal

Thermal stress disrupts symbiotic fluid dynamics in bobtail squid.

Journal of the Royal Society, Interface·2026
Same journal

Distinct geometrical landscapes distinguish between modes of tristability in gene regulatory networks.

Journal of the Royal Society, Interface·2026
Same journal

Slow modulation of the contraction patterns in Physarum polycephalum.

Journal of the Royal Society, Interface·2026
Same journal

Moo-ving mountains: grazing agents drive terracette formation on steep hillslopes.

Journal of the Royal Society, Interface·2026
See all related articles

Related Experiment Video

Updated: Jan 21, 2026

Molecular Evolution of the Tre Recombinase
12:02

Molecular Evolution of the Tre Recombinase

Published on: May 29, 2008

10.1K

Fingerpad contact evolution under electrovibration.

Omer Sirin1, Allan Barrea2,3, Philippe Lefèvre2,3

  • 1College of Engineering, Robotics and Mechatronics Laboratory, Koc University, 34450 Istanbul, Turkey.

Journal of the Royal Society, Interface
|August 1, 2019
PubMed
Summary
This summary is machine-generated.

Electrovibration enhances touchscreen friction during full slip by increasing real contact area and reducing apparent contact area due to skin stiffening. This tactile feedback has potential applications in various industries.

Keywords:
contact mechanicselectroadhesionelectrovibrationhaptic perceptiontactile feedback

More Related Videos

Contact Hypersensitivity as a Murine Model of Allergic Contact Dermatitis
08:25

Contact Hypersensitivity as a Murine Model of Allergic Contact Dermatitis

Published on: September 26, 2022

3.5K
Author Spotlight: Understanding Microbe Adaptation Using Innovative Techniques for Exploring Thermophilic Evolution
08:11

Author Spotlight: Understanding Microbe Adaptation Using Innovative Techniques for Exploring Thermophilic Evolution

Published on: June 14, 2024

1.4K

Related Experiment Videos

Last Updated: Jan 21, 2026

Molecular Evolution of the Tre Recombinase
12:02

Molecular Evolution of the Tre Recombinase

Published on: May 29, 2008

10.1K
Contact Hypersensitivity as a Murine Model of Allergic Contact Dermatitis
08:25

Contact Hypersensitivity as a Murine Model of Allergic Contact Dermatitis

Published on: September 26, 2022

3.5K
Author Spotlight: Understanding Microbe Adaptation Using Innovative Techniques for Exploring Thermophilic Evolution
08:11

Author Spotlight: Understanding Microbe Adaptation Using Innovative Techniques for Exploring Thermophilic Evolution

Published on: June 14, 2024

1.4K

Area of Science:

  • Tribology and Contact Mechanics
  • Human-Computer Interaction
  • Surface Physics

Background:

  • Electrovibration offers tactile feedback for touchscreens, crucial for mobile devices, electronics, and automotive applications.
  • Limited understanding of contact mechanics under electrovibration hinders its full potential.
  • Investigating finger-screen interaction dynamics is key to optimizing electrovibration technology.

Purpose of the Study:

  • To experimentally investigate the contact evolution between a human finger and a touchscreen under electrovibration.
  • To understand the influence of electrovibration on friction and contact area during sliding.
  • To elucidate the mechanisms behind friction enhancement and apparent area reduction.

Main Methods:

  • Utilized a robotic setup for controlled finger-touchscreen interactions.
  • Employed an advanced imaging system to monitor contact evolution.
  • Analyzed friction coefficients and apparent contact areas under varying electrovibration conditions.

Main Results:

  • Electrovibration's effect is observed exclusively during the full slip phase, not prior.
  • A significant increase in the coefficient of friction was recorded during full slip with electrovibration.
  • Apparent contact area notably decreased under electrovibration compared to no electrovibration conditions.

Conclusions:

  • Electrovibration increases friction during full slip, primarily due to a larger real contact area.
  • The observed reduction in apparent contact area is attributed to the stiffening of finger skin in the tangential direction.
  • Findings provide crucial insights into electrovibration's contact mechanics, paving the way for improved tactile feedback systems.