Macroporous Hydrogels
Macroporous Hydrogels - Related Videos
07:37
Preparation of Macroporous Epitaxial Quartz Films on Silicon by Chemical Solution Deposition
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Cited by 7 •
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A protocol is presented for the preparation of piezoelectric macroporous epitaxial films of quartz on silicon by solution chemistry using dip-coating and thermal treatments in air.
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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...
08:50
Easy Manipulation of Architectures in Protein-based Hydrogels for Cell Culture Applications
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Cited by 7 •
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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.
10:27
Preparation of Highly Porous Coordination Polymer Coatings on Macroporous Polymer Monoliths for Enhanced Enrichment of Phosphopeptides
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Cited by 12 •
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A procedure for the preparation of porous hybrid separation media composed of a macroporous polymer monolith internally coated by a high surface area microporous coordination polymer is presented.
FAQs
These strategies generate a temporary or evolving second phase while polymer chains cross-link. A porogen occupies space that later becomes pore volume, phase separation divides the forming network into polymer-rich and polymer-poor regions, and gas formation creates voids as the matrix develops. Preserving those spaces produces interconnected channels that remain accessible after the hydrogel swells.
Interconnected pores create continuous pathways through the swollen matrix, allowing fluids to move beyond the material’s outer surface. This accessibility supports molecular diffusion and, in some systems, the movement of cells or biomolecules. Consequently, pore connectivity affects how readily enzymes, substrates, or purified molecules can reach functional regions within the hydrogel rather than remaining limited to surface interactions.
Water content provides a hydrated environment, while pore architecture determines the available pathways and accessibility within the three-dimensional network. Chemical functionality supplies interaction sites that can support biochemical binding or immobilization. Because these features are tunable, researchers can adjust the hydrogel environment for particular diffusion behavior, enzyme retention, or biochemical interactions instead of relying on one fixed structure.
Cross-linking joins polymer chains into a network that can retain water and preserve spaces formed during material preparation. The resulting matrix provides structural support while maintaining an aqueous setting for molecular transport and biochemical interactions. Its balance with pore formation is important because the network must retain the designed architecture while leaving pathways accessible to enzymes, biomolecules, or cells where applicable.
Preparation begins with forming a polymer-containing system and introducing a pore-generating strategy, such as a porogen, phase-separation process, or gas-forming reaction. Polymer chains then cross-link while the pore-forming component establishes spaces in the developing matrix. After the structure is preserved, swelling produces the water-rich material used for transport, immobilization, separation, or purification.
They are useful when experiments require an aqueous, accessible matrix for enzyme immobilization, controlled molecular diffusion, or separation and purification. Their interconnected pores help expose internal regions to fluids, while chemical functionality can support biochemical interactions. In this way, the same material platform can be studied as a host for enzymes, a transport medium, or a structured purification environment.
The combination of hydrated conditions, tunable pore architecture, and chemical functionality supports several research directions. Macroporous hydrogels can serve as platforms for tissue engineering, biosensing, and drug delivery, while their internal pathways facilitate relevant molecular access. Their biochemical value comes from adapting the matrix environment to interactions among polymers, biomolecules, cells, and transported substances.