Hydrogel Application
Hydrogel Application - Related Videos
09:30
The Synthesis of RGD-functionalized Hydrogels as a Tool for Therapeutic Applications
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Cited by 17 •
2016
We present a protocol for the synthesis of RGD-functionalized hydrogels as devices for cell and drug delivery. The procedure involves copper catalyzed alkyne-azide cycloaddition (CuAAC) between alkyne-modified polyacrylic acid (PAA) and a RGD-azide derivative. The hydrogels are formed using microwave-assisted polycondensation and their physicochemical properties are investigated.
08:50
Easy Manipulation of Architectures in Protein-based Hydrogels for Cell Culture Applications
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Cited by 7 •
2017
Different methods to manipulate three-dimensional architecture in protein-based hydrogels are evaluated here with respect to material properties. The macroporous networks are functionalized with a cell-adhesive peptide, and their feasibility in cell culture is evaluated using two different model cell lines.
10:45
Light-mediated Formation and Patterning of Hydrogels for Cell Culture Applications
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Cited by 26 •
2016
We describe a sequential process for light-mediated formation and subsequent biochemical patterning of synthetic hydrogel matrices for three-dimensional cell culture applications. The construction and modification of hydrogels with cytocompatible photoclick chemistry is demonstrated. Additionally, facile techniques to quantify and observe patterns and determine cell viability within these hydrogels are presented.
09:19
Patterning Bioactive Proteins or Peptides on Hydrogel Using Photochemistry for Biological Applications
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Cited by 3 •
2017
In this method, we use photopolymerization and click chemistry techniques to create protein or peptide patterns on the surface of polyethylene glycol (PEG) hydrogels, providing immobilized bioactive signals for the study of cellular responses in vitro.
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...
FAQs
Water uptake depends on the hydrophilic polymer chains and the network’s crosslinking. As the material absorbs water, the linked chains maintain a three-dimensional structure rather than dissolving. Adjusting composition and fabrication conditions changes how much water the network retains and how it balances swelling with structural integrity, which is central to selecting a hydrogel for a biological task.
Composition and fabrication conditions are the main design levers identified for hydrogel application. They can be adjusted to tune swelling, mechanical strength, porosity, and degradation. These properties should be considered together: a design that retains water may not provide the same structural performance as another formulation, while degradation behavior can determine how long the material remains useful in a biological setting.
Physical and chemical crosslinks provide alternative ways to hold hydrophilic polymer chains within a water-retaining network. The crosslinking approach, combined with composition and fabrication conditions, helps determine swelling, mechanical strength, porosity, and degradation. Controlling these characteristics allows researchers to adapt the material for different biological interactions instead of treating all hydrogels as functionally identical.
Design begins by identifying the required biological function, then selecting composition and fabrication conditions that produce suitable swelling, mechanical strength, porosity, and degradation. This property-matching approach helps distinguish a hydrogel intended for controlled drug release from one designed as a scaffold, wound dressing, cell culture matrix, or biosensor.
In therapeutic delivery, the hydrogel network supports controlled drug release, while wound-dressing designs use a hydrated material for interaction with injured tissue. The relevant design priorities differ by purpose, so swelling, degradation, and mechanical strength can be tuned to support the intended biological function and determine how the material performs over its useful period.
Hydrogels provide hydrated environments that can resemble aspects of the native extracellular matrix, the surrounding material that supports cells in tissues. In tissue-engineering scaffolds and cell culture matrices, this environment can help regulate cell behavior. Their tunable porosity, mechanical strength, swelling, and degradation further support biomaterial designs aimed at regenerative medicine.
Hydrogels can interact with biological systems while their network properties remain adjustable. That combination makes them useful in biosensors and broader biomaterial design, where swelling, porosity, strength, and degradation influence performance. In bioengineering, these tunable characteristics connect material formulation with applications in therapeutic delivery, regenerative medicine, and biological measurement.