Water Adhesion
Water Adhesion - Related Videos
01:14
Adhesion
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2019
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...
07:40
Assay of Adhesion Under Shear Stress for the Study of T Lymphocyte-Adhesion Molecule Interactions
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Cited by 3 •
2016
This flow adhesion assay provides a simple, high impact model of T cell-epithelial cell interactions. A syringe pump is used to generate shear stress, and confocal microscopy captures images for quantification. The goal of these studies is to effectively quantify T cell adhesion using flow conditions.
06:44
Creation of Abdominal Adhesions in Mice
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Cited by 9 •
2016
Abdominal adhesions that form after surgery are a major cause of pain, infertility, and hospitalization and reoperation for small bowel obstruction. Our surgical procedure for creating abdominal adhesions in mice is a reliable tool to study the mechanisms underlying the formation of adhesions.
04:36
Assay for Adhesion and Agar Invasion in S. cerevisiae
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Cited by 17 •
2006
We describe a qualitative assay for yeast adhesion and agar invasion as a measure of invasive and pseudohyphal differentiation. This simple assay can be used to assess the invasive phenotype of various mutants as well as the effects environmental cues and signaling pathways on yeast differentiation.
08:00
Screening for Endocrine Activity in Water Using Commercially-available In Vitro Transactivation Bioassays
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Cited by 12 •
2016
A protocol to screen for endocrine activity in organic extracts of water samples, including treated wastewater effluent and surface (receiving) water, was adapted using commercially available division-arrested ("freeze and thaw") in vitro transactivation bioassays.
FAQs
Water adhesion depends on hydrogen bonds and electrostatic interactions between polar water molecules and charged or polar surfaces. These interactions let water spread across a surface, remain attached to it, or enter very small spaces. The surface’s chemical character therefore influences how strongly water wets and interacts with biological materials.
Adhesion attracts water to another material, whereas cohesion keeps water molecules attracted to one another. In biological transport, these properties act together: adhesion helps water cling to the walls of narrow xylem channels, while cohesion helps maintain continuity within the moving water. Their combined effects support upward water movement through plants.
Narrow spaces bring water into close contact with surrounding surfaces, making surface interactions especially important. Adhesion can draw water along the walls, while cohesion helps transmit movement through the connected fluid. This relationship explains why water behavior in microscopic channels differs from behavior in larger open spaces and matters in tissues and laboratory systems.
Within plant xylem, adhesion allows water to cling to the channel walls, and cohesion links neighboring water molecules into a continuous column. Together, these properties support capillary action, helping water travel from roots toward leaves. This mechanism connects molecular-scale interactions with the transport of water through the plant’s conducting tissues.
Water adhesion can be investigated by observing how water spreads across, clings to, or remains attached to different surfaces. Such observations reveal how interactions with charged or polar materials influence wetting behavior. In laboratory systems, this principle helps explain how water contacts surfaces and moves through narrow microscopic channels.
At small scales, water frequently contacts channel walls rather than moving as an unrestricted bulk fluid. Adhesion influences whether it spreads along those walls, remains attached, or advances through the channel. This makes the property relevant to fluid movement in biological tissues and to laboratory systems designed around microscopic spaces.