Water-resistant Adhesion
Water-resistant Adhesion - Related Videos
03:16
Isolation of Antibiotic-Resistant Bacteria from a Water Sample for Molecular Analysis
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2025
Source: Ghadigaonkar, D. and Rath, A. Isolation and Identification of Waterborne Antibiotic-Resistant Bacteria and Molecular Characterization of their Antibiotic Resistance Genes. J. Vis. Exp. (2023)This video demonstrates the isolation and preparation of antibiotic-resistant bacteria from a water sample using selective media. The DNA is extracted from antibiotic-resistant bacteria and amplified to identify the bacterial antibiotic-resistant genes.
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...
10:55
Assays for Studying the Role of Vitronectin in Bacterial Adhesion and Serum Resistance
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Cited by 1 •
2018
This report describes protocols for characterizing interactions between bacterial outer membrane proteins and the human complement regulator vitronectin. The protocols can be used to study the binding reactions and biological function of vitronectin in any bacterial species.
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.
13:28
Introducing Shear Stress in the Study of Bacterial Adhesion
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Cited by 9 •
2011
During the infection process, a key step is the adhesion of pathogens with host cells. In most instances this adhesion step occurs in the presence of mechanical stress generated by flowing liquid. We describe a technique that introduces shear stress as an important parameter in the study of bacterial adhesion.
FAQs
These mechanisms strengthen attachment at the material interface while reducing opportunities for water to disrupt the bond. Interfacial chemistry promotes interactions between surfaces, physical entanglement helps maintain mechanical connection, and surface structures can support bonding while limiting water penetration. Combining these strategies is useful when an adhesive must remain attached under wet physiological conditions.
Water can weaken the interactions that hold two surfaces together and may cause the adhesive or surrounding material to swell. Those changes can lead to reduced bonding or separation over time. Designs that restrict water entry help preserve the interface, making this principle important for devices exposed to biological fluids or high humidity.
Adhesion strength alone is not sufficient. A bioengineering adhesive also needs biocompatibility, flexibility, and stability during prolonged exposure to bodily fluids. These properties address different demands: attachment, compatibility with biological environments, accommodation of movement, and retention of performance over time. The appropriate balance depends on the intended device or tissue application.
A practical design must match strong attachment with biological compatibility and mechanical flexibility. Excessive focus on one property may leave the system unsuitable for its intended environment, especially when tissues or wearable devices require movement. Researchers therefore consider strength, flexibility, biocompatibility, and fluid stability together when selecting or developing an adhesive interface.
Its applications include wound closure, tissue repair, wearable sensors, implantable devices, and drug-delivery systems. In each case, the adhesive must function despite contact with water or biological fluids. Maintaining attachment can support tissue contact, device positioning, or interface stability, depending on whether the system is applied externally, implanted, or used to deliver treatment.
Wearable sensors and implantable devices may encounter biological fluids or humid conditions during use. If water weakens the interface, the device can lose contact with the target surface or tissue. Water-resistant adhesion helps maintain attachment under these conditions, while flexibility and biocompatibility remain important for compatibility with moving tissue and biological environments.