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Adhesion

Adhesion

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 glass...

Anchoring Junctions

Anchoring Junctions

Anchoring junctions are multiprotein complexes that help cells connect to other cells and the extracellular matrix. Anchoring junctions are present on the lateral and basal surfaces of cells, providing strong and flexible connections. Focal adhesions are often formed due to cell interactions with the ECM substrata, which initiate signal transduction via kinase cascades and other mechanisms. Together, they provide stability and tissue integrity. There are three types of anchoring junctions:...

Structure of Cadherins

Structure of Cadherins

The cadherins were one of the first cell adhesion molecules discovered; the term “cadherins” is based on their calcium-dependent adhering properties. The first cadherins discovered on the epithelial, neuronal, and placental cells were named E-cadherin, P-cadherin, and N-cadherin, respectively. These classical cadherins share sequence and structural similarities. Other cadherins, including those involved in cell signaling, are grouped into non-classical cadherins. This diversity of cadherins...

Adherens Junctions

Adherens Junctions

Strong contact points between adjacent cells anchor them to each other, forming tissues. Such anchoring junctions are of two types – adherens junctions and desmosomes. Adherens junctions are abundant in tissues such as epithelium and endothelium, forming a continuous zone of adhesion called the adhesion belt. In other tissues, such as heart muscle, they appear as clusters, linking the cells to produce coordinated heart muscle contraction.
Adherens Junctions are Dynamic
The endothelial cells...

Cell Adhesion Molecules - Types and Functions

Cell Adhesion Molecules - Types and Functions

Cell adhesion molecules (CAMs) are pivotal to multicellularity and the coordinated functioning of tissues and organ systems. They enable physical interactions between cells and provide mechanical strength to tissues. They also function as receptors for signal transmission across the plasma membrane. The CAMs are broadly classified into four families - integrins, cadherins, selectins, and immunoglobulin-like CAMs (IgCAMs).
CAM Families
The Integrin family of proteins is primarily involved in a...

Cell Adhesion Molecules - Types and Functions

Cell Adhesion Molecules - Types and Functions

Cell adhesion molecules (CAMs) are pivotal to multicellularity and the coordinated functioning of tissues and organ systems. They enable physical interactions between cells and provide mechanical strength to tissues. They also function as receptors for signal transmission across the plasma membrane. The CAMs are broadly classified into four families - integrins, cadherins, selectins, and immunoglobulin-like CAMs (IgCAMs).
CAM Families
The Integrin family of proteins is primarily involved in a...

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Related Experiment Video

Updated: Jun 14, 2026

Bead Aggregation Assays for the Characterization of Putative Cell Adhesion Molecules

Bead Aggregation Assays for the Characterization of Putative Cell Adhesion Molecules

Published on: October 17, 2014

Si/Cu interface structure and adhesion.

Xiao-Gang Wang¹, John R Smith

¹Delphi Research Labs, Shelby Township, Michigan 48315, USA.

Physical Review Letters

|October 26, 2005

Summary

This study reveals that silicon/copper interfaces naturally form misfit dislocations and hexagonal close-packed silicide phases. These interfacial silicides form even at low temperatures, aligning with experimental observations.

Area of Science:

Materials Science
Surface Science
Computational Physics

Background:

Understanding the atomic structure and adhesion of interfaces is crucial for designing novel materials.
The silicon/copper (Si/Cu) interface is relevant in microelectronics and catalysis.

Purpose of the Study:

To investigate the atomic structure and adhesion of the Si(111)/Cu(111) interface using ab initio methods.
To identify the formation of interfacial phases and their dependence on temperature.

Main Methods:

Ab initio electronic structure calculations.
Density Functional Theory (DFT) simulations.

Main Results:

Misfit dislocations spontaneously form at the Si(111)/Cu(111) interface.

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Thin Film Composite Silicon Elastomers for Cell Culture and Skin Applications: Manufacturing and Characterization

Thin Film Composite Silicon Elastomers for Cell Culture and Skin Applications: Manufacturing and Characterization

Published on: July 3, 2018

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Last Updated: Jun 14, 2026

Bead Aggregation Assays for the Characterization of Putative Cell Adhesion Molecules

Bead Aggregation Assays for the Characterization of Putative Cell Adhesion Molecules

Published on: October 17, 2014

Assay of Adhesion Under Shear Stress for the Study of T Lymphocyte-Adhesion Molecule Interactions

Assay of Adhesion Under Shear Stress for the Study of T Lymphocyte-Adhesion Molecule Interactions

Published on: June 29, 2016

Thin Film Composite Silicon Elastomers for Cell Culture and Skin Applications: Manufacturing and Characterization

Thin Film Composite Silicon Elastomers for Cell Culture and Skin Applications: Manufacturing and Characterization

Published on: July 3, 2018

Hexagonal close-packed (hcp) interfacial silicide phases emerge and their structure varies with temperature.

Silicide formation is observed even at relatively low temperatures.

Conclusions:

The calculated interfacial structure and phase behavior are consistent with experimental data.
The findings provide fundamental insights into the atomic mechanisms governing Si/Cu interface formation.