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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...

Surface Appendages of Archaea

Surface Appendages of Archaea

Archaeal surface appendages are highly specialized structures essential for environmental adaptation, encompassing roles in adhesion, biofilm formation, and motility. Among these appendages, pili and archaella stand out for their distinct morphologies and functionalities, enabling archaea to thrive in diverse and often extreme environments.Pili: Adhesion and Biofilm FormationPili are filamentous structures assembled from pilin protein subunits, primarily contributing to adhesion and biofilm...

Cell Adhesion in Plants

Cell Adhesion in Plants

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, and...

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...

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:...

Types of Membrane Protrusions

Types of Membrane Protrusions

The protrusion of the cell surface is an initial step for several cellular processes, including cell migration, phagocytosis, and neurite outgrowth. These membrane protrusions are a result of cytoskeletal rearrangement. The most widely observed cell protrusions include lamellipodia, pseudopodia, filopodia, microvilli, invadopodia, and podosomes. These protrusions can be of two types — static or dynamic.
The microvilli, an example of stable protrusions, are finger-like projections with a...

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The Barnacle Balanus improvisus as a Marine Model - Culturing and Gene Expression

The Barnacle Balanus improvisus as a Marine Model - Culturing and Gene Expression

Published on: August 8, 2018

Mini-review: barnacle adhesives and adhesion.

¹Department of Biotechnology, National Institute of Technology and Evaluation, Kisarazu, Japan. kamino-kei@nite.go.jp

|June 28, 2013

Summary

Barnacle adhesion is key for underwater attachment research. Understanding their unique underwater adhesives and attachment mechanisms is crucial for developing new anti-fouling technologies and advancing adhesion science.

Area of Science:

Marine Biology
Biomaterials Science
Adhesion Science

Background:

Barnacles are significant fouling organisms with unique underwater adhesion mechanisms.
Their adhesion is a key area for biomimetic and bioinspired research.
Understanding barnacle attachment is crucial for fouling prevention and adhesion science.

Purpose of the Study:

To review research on adult barnacle underwater adhesion.
To integrate findings from studies on fouling and adhesion.
To highlight knowledge gaps in barnacle attachment mechanisms and adhesives.

Main Methods:

Review of existing biological and biochemical studies on barnacle adhesion.
Analysis of research on barnacle attachment to silicone-based coatings.

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Examination of molecular techniques applied to barnacle adhesion.

Main Results:

Barnacle adhesive molecular characteristics are unique.
Significant knowledge gaps remain regarding the complex underwater attachment process.
Barnacle attachment to silicone coatings differs from other materials, indicating incomplete understanding.

Conclusions:

Further research is needed to fully understand barnacle attachment processes and adhesives.
Discoveries will impact fouling prevention technologies and adhesion science.
Barnacle adhesion remains a complex and intriguing area for scientific exploration.