Hydrogel Mold Casting
Hydrogel Mold Casting - Related Videos
10:49
Printing Thermoresponsive Reverse Molds for the Creation of Patterned Two-component Hydrogels for 3D Cell Culture
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Cited by 60 •
2013
A bioprinter was used to create patterned hydrogels based on a sacrificial mold. The poloxamer mold was backfilled with a second hydrogel and then eluted, leaving voids which were filled with a third hydrogel. This method uses fast elution and good printability of poloxamer to generate complex architectures from biopolymers.
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.
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...
09:50
Production and Use of Customizable Agarose Molds for Scaffold-Free Mouse Ovarian Follicle Culture
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Cited by 2 •
2025
We describe methods to culture ovarian follicles in a novel scaffold-free agarose mold that complement in vitro gametogenesis.
08:32
Indirect Fabrication of Lattice Metals with Thin Sections Using Centrifugal Casting
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Cited by 8 •
2016
An indirect additive manufacturing method combining a 3D printing of polymers with a centrifugal casting is outlined for manufacturing 3D octet truss metals (Al and Cu alloys) having a unit cell length of 5 mm with a wall thickness of 0.5 mm.
FAQs
Crosslinking converts the filled precursor into a stable polymer network that preserves the mold-defined form. Chemical, physical, and light-triggered routes provide different mechanisms for initiating gelation, while the resulting network determines whether the replica maintains its intended geometry. This step is therefore central to transferring a designed mold architecture into a usable biological construct.
The hydrogel network can be adjusted to provide different porosities and stiffnesses while retaining a selected shape. These properties matter because cells experience the construct as a three-dimensional environment rather than a flat surface. Changing the network characteristics can therefore create distinct culture conditions for examining cell behavior or building tissue-like architectures.
Because each mold translates a planned geometry into a replica, mold design controls the architecture available to cells and tissues. Reproducing the same geometry across samples also supports consistent biological comparisons. This reproducibility is valuable when investigators evaluate cell behavior, construct performance, or responses in drug-testing platforms.
Chemical, physical, and light-triggered crosslinking are alternative ways to convert the filled liquid or precursor into a gel. Each route identifies a different mechanism for initiating gelation, while the shared goal is a stable, mold-shaped network. Distinguishing these routes helps researchers describe and compare fabrication strategies without changing the intended geometric outcome.
The workflow begins by placing a liquid or precursor solution into the mold. The material then undergoes gelation through chemical, physical, or light-triggered crosslinking, producing a stable hydrogel replica. After gelation, the replica can be removed from the mold. This sequence links mold filling, network formation, and demolding in a single fabrication process.
The process requires a mold with the desired geometry, a liquid or precursor solution capable of forming a hydrogel, and a means of initiating crosslinking. The mold establishes shape, the precursor supplies the water-rich polymer network, and the crosslinking mechanism stabilizes it. Together, these components determine whether the intended replica can be recovered.
It is useful when a study needs reproducible, three-dimensional biological environments with controlled shape. Applications described for this approach include cell-laden constructs, tissue-like architectures, culture platforms, drug testing, and regenerative medicine. By combining designed geometry with tunable porosity and stiffness, the method supports experiments that connect material structure with biological behavior.
These constructs can be used to study how cells behave within defined three-dimensional surroundings and to develop tissue-engineering or regenerative-medicine strategies. The fabricated platforms also support drug-testing studies. Their value lies in controlling geometry and selected network properties, allowing researchers to create repeatable biomaterial environments rather than relying on an undefined spatial arrangement.