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

Cohesion01:07

Cohesion

Cohesion is the attraction between molecules of the same type, such as water molecules. Water molecules have an overall neutral charge but are polar molecule. An oxygen atom in one water molecule has a partial negative charge that can bind to a hydrogen atom with a partial positive charge in a second water molecule, forming a hydrogen bond. Each water molecule can form up to four hydrogen bonds with other water molecules. Hydrogen bonds are responsible for water's cohesive nature.
On a surface,...
Surface Tension, Capillary Action, and Viscosity02:57

Surface Tension, Capillary Action, and Viscosity

Surface Tension
The various IMFs between identical molecules of a substance are examples of cohesive forces. The molecules within a liquid are surrounded by other molecules and are attracted equally in all directions by the cohesive forces within the liquid. However, the molecules on the surface of a liquid are attracted only by about one-half as many molecules. Because of the unbalanced molecular attractions on the surface molecules, liquids contract to form a shape that minimizes the number...
Surface Tension and Surface Energy01:16

Surface Tension and Surface Energy

When a paint brush is immersed in water, the bristles wave freely inside the water. When it is taken out, the bristles stick together. The reason behind this effect is surface tension.
Consider a beaker filled with liquid. The bulk molecules in the liquid experience equal attractive forces on all sides with the surrounding molecules. However, the surface molecules experience a net attractive force downward due to the bulk molecules. The surface of the liquid behaves like a stretched membrane,...
Surface Tension01:24

Surface Tension

Surface tension is defined as the force per unit length (γ) acting along the surface of a liquid. It arises due to strong intermolecular forces of attraction. A molecule located inside the bulk of the liquid is surrounded by other molecules and experiences equal forces in all directions. However, a molecule at the surface experiences unbalanced forces because there are more neighboring molecules below than above. This creates a net inward force that pulls surface molecules toward the interior,...
Theories of Dissolution: The Danckwerts' Model and Interfacial Barrier Model01:09

Theories of Dissolution: The Danckwerts' Model and Interfacial Barrier Model

Various dissolution theories provide insight into the factors that influence the dissolution rate. Danckwerts' Model suggests that turbulence, rather than a stagnant layer, characterizes the dissolution medium at the solid-liquid interface. In this model, the agitated solvent contains macroscopic packets that move to the interface via eddy currents, facilitating the absorption and delivery of the drug to the bulk solution. The regular replenishment of solvent packets maintains the concentration...
Surface Tension of Fluid01:22

Surface Tension of Fluid

Surface tension is a fundamental property of fluids, occurring at the boundary between a liquid and a gas or between two immiscible liquids. This phenomenon arises from the cohesive forces between molecules at the fluid's surface, creating an effect similar to a stretched elastic membrane. Inside each fluid, molecules are equally attracted in all directions by neighboring molecules, but surface molecules experience a net inward force, resulting in surface tension.
Surface tension varies with...

You might also read

Related Articles

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

Sort by
Same author

Regulation of adult stem cells by Niche-sensing cellular protrusions.

Current topics in developmental biology·2026
Same author

Regulation of Muscle Stem Cell Dynamics and Quiescence by Netrin-1 Cytoskeletal Signaling.

bioRxiv : the preprint server for biology·2025
Same author

The motor neuron m6A repertoire governs neuronal homeostasis and FTO inhibition mitigates ALS symptom manifestation.

Nature communications·2025
Same author

Heat-Annealed Zinc Oxide on Flexible Carbon Nanotube Paper and Exposed to Gradient Light to Enhance Its Photoelectric Response.

Nanomaterials (Basel, Switzerland)·2024
Same author

Cadherin-dependent adhesion is required for muscle stem cell niche anchorage and maintenance.

Development (Cambridge, England)·2024
Same author

The muscle stem cell niche at a glance.

Journal of cell science·2023

Related Experiment Video

Updated: Jun 27, 2026

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers
13:44

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers

Published on: December 27, 2012

15.5K

Terahertz metasurfaces embedded into hydrogel layers.

Harry Miyosi Silalahi, Hsiao-Fan Lo, Jih-Hsin Liu

    Optics Express
    |July 30, 2025
    PubMed
    Summary

    This study demonstrates a novel metasurface embedded in hydrogel that detects water presence by developing cracks. This innovation offers potential for advanced humidity sensors and water harvesting technologies.

    Area of Science:

    • Materials Science
    • Nanotechnology
    • Electromagnetics

    Background:

    • Metasurfaces offer tunable electromagnetic properties.
    • Hydrogels are responsive materials sensitive to environmental changes like water presence.

    Purpose of the Study:

    • To fabricate a water-responsive metasurface integrated within a hydrogel matrix.
    • To investigate the electromagnetic behavior of the metasurface upon water-induced swelling of the hydrogel.

    Main Methods:

    • Fabrication of a metasurface using photolithography, sputtering, lift-off, and imprinting.
    • Integration of the metasurface into a hydrogel layer.
    • Analysis of changes in metasurface transmittance due to hydrogel swelling and SRR cracking in the presence of water.

    More Related Videos

    Synthesis of Hydrogels with Antifouling Properties As Membranes for Water Purification
    07:32

    Synthesis of Hydrogels with Antifouling Properties As Membranes for Water Purification

    Published on: April 7, 2017

    9.5K
    Hydrogel Arrays Enable Increased Throughput for Screening Effects of Matrix Components and Therapeutics in 3D Tumor Models
    10:49

    Hydrogel Arrays Enable Increased Throughput for Screening Effects of Matrix Components and Therapeutics in 3D Tumor Models

    Published on: June 16, 2022

    2.7K

    Related Experiment Videos

    Last Updated: Jun 27, 2026

    Simulation, Fabrication and Characterization of THz Metamaterial Absorbers
    13:44

    Simulation, Fabrication and Characterization of THz Metamaterial Absorbers

    Published on: December 27, 2012

    15.5K
    Synthesis of Hydrogels with Antifouling Properties As Membranes for Water Purification
    07:32

    Synthesis of Hydrogels with Antifouling Properties As Membranes for Water Purification

    Published on: April 7, 2017

    9.5K
    Hydrogel Arrays Enable Increased Throughput for Screening Effects of Matrix Components and Therapeutics in 3D Tumor Models
    10:49

    Hydrogel Arrays Enable Increased Throughput for Screening Effects of Matrix Components and Therapeutics in 3D Tumor Models

    Published on: June 16, 2022

    2.7K

    Main Results:

    • Hydrogel swelling in water caused cracks in the split ring resonators (SRRs).
    • Cracking increased SRR resistance, degenerated electromagnetic resonance, and enhanced metasurface transmittance at resonance frequency.
    • The change in transmittance served as a direct indicator of water presence.

    Conclusions:

    • The developed hydrogel-embedded metasurface effectively detects water.
    • This technology shows promise for creating sensitive humidity sensors.
    • Potential applications include efficient water harvesting systems.