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Related Concept Videos

Adhesion01:14

Adhesion

43.2K
Adhesion occurs when one type of molecule is attracted to a different molecule. Water exhibits adhesive properties in the presence of polar surfaces, such as glass or cellulose in plants. For instance, when water is poured into a glass, the positively charged hydrogen molecules of water are more attracted to the negatively charged oxygen molecules in the silica than to the oxygen in neighboring water molecules.
Capillary action is a result of water’s adhesive tendencies. When a narrow...
43.2K
Cohesion01:07

Cohesion

57.9K
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...
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Surface Tension, Capillary Action, and Viscosity02:57

Surface Tension, Capillary Action, and Viscosity

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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...
32.2K
Contact Angle01:13

Contact Angle

17.8K
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...
17.8K
Solubility03:00

Solubility

20.6K
Solution, Solubility, and Solubility Equilibrium
A solution is a homogeneous mixture composed of a solvent, the major component, and a solute, the minor component. The physical state of a solution—solid, liquid, or gas—is typically the same as that of the solvent. Solute concentrations are often described with qualitative terms such as dilute (of relatively low concentration) and concentrated (of relatively high concentration).
In a solution, the solute particles (molecules,...
20.6K
Cell Adhesion in Plants01:14

Cell Adhesion in Plants

3.1K
Plants have rigid cell walls that are made up of cell wall polysaccharides that mediate cell-cell adhesion. The primary cell walls of plants consist of two independent and interacting polysaccharide networks: a pectin matrix that embeds the second network comprising cellulose and hemicelluloses.
Pectins are complex heteropolymers mainly composed of negatively-charged α-D-glucopyranosyl uronic acid and some neutral glycosyl residues such as α-L-rhamnopyranose, α-L-arabinofuranose,...
3.1K

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Updated: Dec 24, 2025

TAPE: A Biodegradable Hemostatic Glue Inspired by a Ubiquitous Compound in Plants for Surgical Application
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Nature inspired solid-liquid phase amphibious adhesive.

Alin Cristian Chipara1, Gustavo Brunetto, Sehmus Ozden

  • 1Department of Materials Science and Nano Engineering, Rice University, Houston, TX 77005, USA. ajayan@rice.edu cst.iisc@gmail.com.

Soft Matter
|April 17, 2020
PubMed
Summary
This summary is machine-generated.

Researchers developed a novel solid-liquid adhesive using polyvinylidene fluoride and polydimethylsiloxane. This reusable, chemical-reaction-free material offers instant adhesion for diverse materials in air and water.

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Area of Science:

  • Materials Science
  • Polymer Science
  • Adhesion Science

Background:

  • Developing advanced adhesives is crucial for various industrial and medical applications.
  • Existing adhesives often require curing time, specific environmental conditions, or lack versatility.
  • Bio-inspired materials offer new avenues for adhesive design.

Purpose of the Study:

  • To report a new class of bio-inspired solid-liquid adhesive.
  • To investigate the adhesive properties and potential applications of this novel material.
  • To demonstrate a versatile, reusable, and rapidly acting adhesive solution.

Main Methods:

  • Mechanical dispersion of polyvinylidene fluoride (PVDF) solid spheres into polydimethylsiloxane (PDMS) liquid.
  • Characterization of solid-liquid interactions driving adhesive behavior.
  • Testing of adhesive performance on diverse materials (metals, ceramics, polymers) in both air and underwater conditions.

Main Results:

  • A novel solid-liquid adhesive was successfully synthesized via simple mechanical mixing.
  • The adhesive exhibits strong solid-liquid interactions, enabling rapid and robust bonding.
  • The material demonstrated instantaneous adhesion across a wide range of substrates in both dry and wet environments.
  • The adhesive is reusable and does not require a curing time, functioning without chemical reactions.

Conclusions:

  • This work presents a significant advancement in amphibious, multifunctional adhesives.
  • The developed solid-liquid adhesive offers a versatile, reusable, and rapid bonding solution.
  • Potential applications include diverse sealing challenges, particularly in medical fields.