Hydrogel Processing
Hydrogel Processing - Related Videos
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.
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...
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...
08:07
Culturing, Freezing, Processing, and Imaging of Entire Organoids and Spheroids While Still in a Hydrogel
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Cited by 1 •
2022
The present study describes methodologies for culturing, freezing, thawing, processing, staining, labeling, and examining entire spheroids and organoids under various microscopes, while they remain intact in a hydrogel within a multipurpose device.
09:47
FRET Imaging in Three-dimensional Hydrogels
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Cited by 3 •
2016
Förster resonance energy transfer (FRET) imaging is a powerful tool for real-time cell biology studies. Here a method for FRET imaging cells in physiologic three-dimensional (3D) hydrogel microenvironments using conventional epifluorescence microscopy is presented. An analysis for ratiometric FRET probes that yields linear ratios over the activation range is described.
FAQs
Crosslinking conditions determine how densely polymer chains are connected within the network. Temperature, pH, ionic conditions, light exposure, and added crosslinkers can therefore change gel strength, porosity, and swelling behavior. Selecting these conditions allows researchers to adjust the material for biological structures, encapsulated contents, or transport requirements rather than producing one fixed hydrogel formulation.
Physical crosslinking is induced by environmental changes such as temperature, pH, or ionic conditions, whereas chemical crosslinking uses added crosslinkers to create the network. Light exposure can also trigger processing when the formulation supports it. This distinction gives researchers different ways to control network formation and tailor the resulting gel for biological use.
Porosity and swelling influence how much water the network retains and how readily substances move through it. Processing conditions that alter crosslinking therefore affect the gel’s hydrated environment, transport behavior, and mechanical strength. These properties are important when a hydrogel must support cells, carry proteins or drugs, or provide tissue-like conditions for biological studies.
The selected processing conditions help determine whether a hydrogel remains compatible with biological contents and how it changes over time. Adjusting crosslinking and network structure can also influence degradation and transport properties. These factors matter when the material must preserve encapsulated cells, proteins, or drugs while maintaining an environment suitable for tissue engineering or regenerative applications.
A typical workflow begins by dissolving or dispersing the selected polymers, followed by inducing physical or chemical crosslinking. Researchers then shape or modify the resulting network according to the intended use and processing conditions. The final material can be evaluated through properties such as strength, porosity, swelling, compatibility, degradation, and transport behavior before biological application.
Processing can create a hydrated, tissue-like network that surrounds cells in three dimensions rather than restricting them to a flat surface. By adjusting crosslinking conditions, researchers can tailor strength, porosity, swelling, and compatibility to the culture objective. This makes processed hydrogels useful for studying cells within structured biological environments and for tissue-engineering research.
Processed hydrogels support several applications, including three-dimensional cell culture, tissue engineering, regenerative medicine, biosensing, and controlled delivery. They can encapsulate cells, proteins, or drugs while their network properties regulate hydration and transport. Processing is therefore useful when researchers need to match the material’s biological environment, degradation behavior, or release-related characteristics to a specific study.