Collagen Hydrogel
Collagen Hydrogel - Related Videos
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...
12:07
Three-dimensional Biomimetic Technology: Novel Biorubber Creates Defined Micro- and Macro-scale Architectures in Collagen Hydrogels
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Cited by 4 •
2016
An innovative biofabrication technique was developed to engineer three-dimensional constructs that resemble the architectural features, components, and mechanical properties of in vivo tissue. This technique features a newly developed sacrificial material, BSA rubber, which transfers detailed spatial features, reproducing the in vivo architectures of a wide variety of tissues.
09:39
Constructing a Collagen Hydrogel for the Delivery of Stem Cell-loaded Chitosan Microspheres
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Cited by 6 •
2012
A major hurdle in current stem cell therapies is determining the most effective method to deliver these cells to host tissues. Here, we describe a chitosan-based delivery method that is efficient and simple in approach, while allowing adipose-derived stem cells to maintain their multipotency.
07:12
Microengineering 3D Collagen Hydrogels with Long-Range Fiber Alignment
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Cited by 3 •
2022
This protocol demonstrates the use of a microfluidic channel with changing geometry along the fluid flow direction to generate extensional strain (stretching) to align fibers in a 3D collagen hydrogel (<250 µm in thickness). The resulting alignment extends across several millimeters and is influenced by the extensional strain rate.
08:33
Hydrogel Synthesis
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2023
Source: Amber N. Barron, Ashlea Patterson, and Taylor D. Sparks, Department of Materials Science and Engineering, The University of Utah, Salt Lake City, UT Hydrogels are a versatile class of cross-linked polymers produced through relatively simple procedures and with generally inexpensive materials. They can be formed from solution and involve a polymer backbone formed from monomer reagents, an initiator which makes the polymer reactive and a crosslinking species which binds the polymer chains...
FAQs
These conditions promote self-assembly of collagen molecules into a fibrillar network. The resulting structure creates a hydrated three-dimensional matrix rather than a simple protein solution. Controlling the chemical environment and temperature is therefore central to producing a hydrogel with the organized architecture needed for cell culture and tissue-engineering studies.
Collagen concentration and crosslinking provide ways to adjust stiffness, porosity, and degradation. These variables influence how closely the material reproduces selected features of native extracellular matrix. Researchers can therefore tailor the matrix for different experimental purposes, although changing one property may alter the overall environment experienced by embedded or attached cells.
The fibrillar matrix supplies a hydrated environment that can support cell attachment, spreading, and migration while also contributing tissue-specific signaling. These effects make collagen hydrogels useful for studying how cells respond to a three-dimensional extracellular-matrix-like environment, rather than only to a flat culture surface.
Preparation typically brings collagen to near-neutral pH and physiological temperature so its molecules can self-assemble. Researchers then use collagen concentration and crosslinking to tune the resulting matrix. This workflow links preparation conditions directly to the hydrogel’s stiffness, porosity, and degradation behavior, which must match the intended bioengineering experiment.
Collagen hydrogels are used in tissue engineering, three-dimensional cell culture, wound healing models, drug delivery, and regenerative medicine. Their value differs across these applications: they can provide a matrix for cells, a model environment for studying healing, or a tunable material for investigating delivery and tissue-repair strategies.
By adjusting matrix characteristics such as stiffness, porosity, and degradation, researchers can reproduce selected aspects of native extracellular matrix. Combined with the material’s support for cell attachment, spreading, migration, and tissue-specific signaling, this tunability helps bioengineers design models that reflect particular tissue environments without treating every culture system identically.