Fibronectin Film
Fibronectin Film - Related Videos
01:25
Fibronectins Connect Cells with ECM
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2023
Fibronectin is an adhesive glycoprotein present in the extracellular matrix of embryogenic and adult tissue. These molecules primarily aid in regulating cell motility and attachment. A fibronectin molecule is composed of two identical polypeptide chains attached to each other by a pair of disulfide bonds at the C-terminal. Both proteoglycans and collagen are attached to fibronectin proteins, which, in turn, are attached to integrin proteins. These integrin proteins interact with transmembrane...
07:58
Electroplating of Thin Films
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2023
Source: Logan G. Kiefer, Andrew R. Falkowski, and Taylor D. Sparks, Department of Materials Science and Engineering, The University of Utah, Salt Lake City, UT Electroplating is a process that uses electric current to reduce dissolved metal cations so that they form a thin coating on an electrode. Other thin film deposition techniques include chemical vapor deposition (CVD), spin coating, dip coating, and sputter deposition among others. CVD uses a gas-phase precursor of the element to be...
08:09
Isolation of Chondrocytes and Chondroprogenitors Using Fibronectin Adhesion and Migratory Assay
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Cited by 5 •
2024
This protocol details the isolation of chondrocytes, Fibronectin Adhesion Assay-derived Chondroprogenitors (FAA-CPs), and Migratory Chondroprogenitors (MCPs) from human articular cartilage. It covers enzymatic digestion, fibronectin adhesion, and migration-based assays for isolating and characterizing these cells.
12:03
Microfluidic Genipin Deposition Technique for Extended Culture of Micropatterned Vascular Muscular Thin Films
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Cited by 4 •
2015
We present a method for microfluidic deposition of patterned genipin and fibronectin on PDMS substrates, allowing extended viability of vascular smooth muscle cell-dense tissues. This tissue fabrication method is combined with previous vascular muscular thin film technology to measure vascular contractility over disease-relevant time courses.
10:08
Fabrication of Large-area Free-standing Ultrathin Polymer Films
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Cited by 10 •
2015
We describe a method for the fabrication of large-area (up to 13 cm diameter) and ultrathin (as thin as 8 nm) polymer films. Instead of using a sacrificial interlayer to delaminate the film from its substrate, we use a self-limiting surface treatment suitable for arbitrarily large areas.
FAQs
Adsorption can alter fibronectin’s molecular presentation at the interface. After molecules attach to a substrate, they may rearrange or partially unfold, exposing binding domains that are less accessible in solution. Those exposed regions can interact with cell-surface integrins and other matrix components, linking surface chemistry to biological adhesion.
Both the surrounding solution and the material surface influence how fibronectin molecules organize after adsorption. These factors can affect molecular rearrangement, unfolding, film composition, and stability. Consequently, changing the chemical character of the substrate or the solution environment may alter how consistently the interface presents fibronectin-binding regions for biological interactions.
The film adds biologically active molecular features to a surface that would otherwise provide limited extracellular-matrix signaling. Its exposed fibronectin domains can support interactions with integrins and other matrix components, allowing the material to participate in cell adhesion. This surface modification connects the material’s chemistry with its biological response.
Preparation begins by selecting a material surface and bringing it into contact with fibronectin so the protein can adsorb. Researchers then consider how the solution environment and substrate properties affect the resulting molecular organization and stability. The deposited layer can subsequently serve as a functional interface for biological or biomaterials studies.
Fibronectin films are used to functionalize surfaces for cell-culture studies, tissue-engineering scaffolds, and biosensor investigations. In each setting, the deposited protein layer supplies extracellular-matrix features that an untreated material may lack. This makes the approach useful when researchers need to examine or support biological interactions at a controlled material interface.
These films provide a model for studying protein adsorption at material interfaces, including how molecular arrangement affects surface behavior. They also support investigations of cell adhesion and the design of bioactive interfaces. Comparing film composition or organization with biological responses helps connect interfacial chemistry to the performance of engineered surfaces.