Collagen Deposition
Collagen Deposition - Related Videos
09:56
Layer-by-layer Collagen Deposition in Microfluidic Devices for Microtissue Stabilization
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Cited by 7 •
2015
The creation of functional microtissues within microfluidic devices requires the stabilization of cell phenotypes by adapting traditional cell culture techniques to the limited spatial dimensions in microdevices. Modification of collagen allows the layer-by-layer deposition of ultrathin collagen assemblies that can stabilize primary cells, such as hepatocytes, as microfluidic tissue models.
07:25
Collagen Hydrogels
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2023
Collagen is another widely used biomaterial that has found popularity in commercial applications, such as photography. Collagen has more recently been used in tissue engineering applications, by creating hydrogels that provide structure to engineered tissue. This video introduces collagen as a biomaterial, demonstrates how it is harvested from porcine skin, and shows how the material is used to create a hydrogel for tissue engineering applications. Finally, several applications of the material...
07:03
Imaging Denatured Collagen Strands In vivo and Ex vivo via Photo-triggered Hybridization of Caged Collagen Mimetic Peptides
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Cited by 18 •
2014
This procedure demonstrates in vivo near IR fluorescence imaging of collagen remodeling activities in mice as well as ex vivo staining of collagens in tissue sections using caged collagen mimetic peptides that can be photo-triggered to hybridize with denatured collagen strands.
02:33
Phase Transitions: Sublimation and Deposition
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2020
Some solids can transition directly into the gaseous state, bypassing the liquid state, via a process known as sublimation. At room temperature and standard pressure, a piece of dry ice (solid CO2) sublimes, appearing to gradually disappear without ever forming any liquid. Snow and ice sublimate at temperatures below the melting point of water, a slow process that may be accelerated by winds and the reduced atmospheric pressures at high altitudes. When solid iodine is warmed, the solid sublimes...
05:17
An Improved Method for the Preparation of Type I Collagen From Skin
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Cited by 23 •
2014
Traditional procedures for the isolation of soluble type 1 collagen (COL1) require about 10 days from start to finish because of lengthy buffer incubations and laborious resuspensions of fibrils. Here, we describe a means to purify COL1 from small dermal biopsies in less than 3 hr.
FAQs
Cells first produce collagen as procollagen, an initial form that undergoes processing outside the cell. The processed molecules then assemble into fibrils, which are reinforced through enzymatic crosslinking. This sequence links cellular synthesis to the formation of a more organized and mechanically functional matrix, making extracellular processing and stabilization important control points in bioengineered tissue development.
Cell type, biochemical signals, and scaffold properties all influence how rapidly collagen accumulates and how it becomes organized. These variables can change the resulting matrix architecture rather than simply altering the total amount deposited. In bioengineering, adjusting them helps researchers guide matrix formation toward tissue constructs with targeted structural and mechanical characteristics.
The arrangement and stabilization of collagen contribute to the mechanical behavior and structural organization of a construct. A deposited matrix must also retain suitable porosity and biological compatibility for its intended use. Consequently, evaluating collagen deposition requires attention to how the matrix is organized, not only whether cells have produced collagen.
A basic analysis follows the sequence from cellular procollagen production to extracellular processing, fibril assembly, and enzymatic stabilization. Researchers then assess the resulting deposition in relation to scaffold properties and biochemical signals. Connecting these stages helps distinguish effects on synthesis from effects on matrix organization and supports evaluation of construct maturation.
Tracking collagen deposition provides evidence about extracellular matrix development and remodeling within an engineered construct. Interpreting the amount and organization of deposited collagen alongside scaffold characteristics can indicate whether the tissue is developing the intended structural and mechanical features. This information helps researchers assess maturation rather than relying only on the presence of cells.
Collagen deposition is examined in matrix remodeling, wound healing, fibrosis, and the maturation of engineered tissues. These applications use deposition measurements to investigate how extracellular matrix structure changes over time or under different biochemical and scaffold conditions. In bioengineering, the same knowledge supports efforts to create constructs with suitable mechanical behavior, porosity, and biological compatibility.