Dual Hydrogel Constructs
Dual Hydrogel Constructs - Related Videos
08:34
Bioprinting Cellularized Constructs Using a Tissue-specific Hydrogel Bioink
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Cited by 59 •
2016
We describe a set of protocols that together provide a tissue-mimicking hydrogel bioink with which functional and viable 3-D tissue constructs can be bioprinted for use in in vitro screening applications.
10:55
Construction of Modular Hydrogel Sheets for Micropatterned Macro-scaled 3D Cellular Architecture
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Cited by 4 •
2016
We describe the fabrication of micropatterned hydrogel sheets using a simple process, which can be assembled and manipulated in a freestanding form. Using these modular hydrogel sheets, a simple macro-scaled 3D cell culture system can be generated with a controlled cellular microenvironment.
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...
06:15
A Hydrogel Construct and Fibrin-based Glue Approach to Deliver Therapeutics in a Murine Myocardial Infarction Model.
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Cited by 8 •
2015
This protocol aims to alleviate the limitation of poor cell engraftment for stem cell treatment of myocardial infarctions through the use of a hydrogel system and a fibrin-based glue. With this approach, cell-to-tissue contact post-infarction can be maintained, increasing the therapeutic potential of beneficial agents at the site of injury.
10:18
Fragmenting Bulk Hydrogels and Processing into Granular Hydrogels for Biomedical Applications
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Cited by 23 •
2022
This work describes straightforward, adaptable, and low-cost methods to fabricate microgels with extrusion fragmentation, process the microgels into injectable granular hydrogels, and apply the granular hydrogels as extrusion printing inks for biomedical applications.
FAQs
Interface design is central to Dual Hydrogel Constructs because the boundary must preserve structural continuity while connecting networks with different compositions or crosslinking characteristics. That interface lets one phase provide support or swelling behavior while the other contributes transport or cell-interactive signaling. Its quality therefore affects whether complementary functions operate as one integrated biomaterial.
The two phases can be assigned nonidentical roles rather than duplicating the same material behavior. One network may be tuned for mechanical support, whereas another may emphasize controlled swelling, molecular transport, or biological signaling. This division of functions allows the overall architecture to address engineering problems in which one material behavior alone would not provide enough control.
Composition, crosslinking characteristics, and spatial organization are key design variables. Changing these features can alter mechanical support, swelling, molecular transport, and cell-interactive signaling across the construct. Researchers can therefore tune the architecture according to whether the goal is to reproduce a tissue boundary, create separate cellular environments, or study interactions between cells and their surrounding matrix.
They reproduce boundary-like conditions by placing distinct material environments within a continuous structure. Each phase can represent a different combination of physical, chemical, or biological behavior, while the interface links those environments. This arrangement helps bioengineers examine how cells respond when neighboring regions differ in matrix properties, an important context for biomimetic models and tissue repair strategies.
A basic design workflow begins by identifying the complementary functions required, such as support, swelling control, transport, or signaling. Researchers then select or engineer two networks with suitable compositions or crosslinking characteristics, integrate them while preserving interface continuity, and tune the resulting architecture. The construct can then be evaluated for its intended material and cell-interactive behavior.
These constructs are useful when an application requires compartmentalized or spatially varied behavior. They can support tissue repair strategies, model tissue boundaries, and create cell culture environments with distinct local conditions. Their tunable architecture also supports biomimetic platforms for regenerative medicine, drug delivery, and advanced in vitro studies of cell–matrix interactions.
Dual hydrogel systems can provide a platform for examining how cells respond to differences in matrix composition, crosslinking, swelling, transport, and signaling across neighboring regions. They also help researchers build biomimetic experimental environments rather than relying on a single uniform material. In bioengineering, these outcomes can inform tissue models, delivery platforms, and regenerative design strategies.