Gel Mold Assembly
Gel Mold Assembly - Related Videos
10:43
Rapid and Low-cost Prototyping of Medical Devices Using 3D Printed Molds for Liquid Injection Molding
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Cited by 34 •
2014
We have devised a method for low-cost and rapid prototyping of liquid elastomer rubber injection molded devices by using fused deposition modeling 3D printers for mold design and a modified desiccator as a liquid injection system.
08:16
Fabrication of Custom Agarose Wells for Cell Seeding and Tissue Ring Self-assembly Using 3D-Printed Molds
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Cited by 27 •
2018
This protocol describes a platform for fabricating self-assembled tissue rings in variable sizes using a customized 3D-printed plastic mold. PDMS negatives are cured in the 3D-printed mold; then agarose is cast in the cured PDMS negatives. Cells are seeded into the resulting agarose wells where they aggregate into tissue rings.
09:22
DNA Gel Electrophoresis
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2023
DNA gel electrophoresis is a technique used for the detection and separation of DNA molecules. An electric field is applied to a gel matrix comprised of agarose, and within the gel, charge particles will migrate and separate based on size. The negatively charged phosphates of the DNA backbone cause DNA fragments to move toward the anode - a positively charged electrode. The video explains the mechanism by which DNA fragments are resolved on an agarose gel, and it provides a step-by-step...
06:30
Gel Purification
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2023
Gel purification is used to recover DNA fragments after electrophoretic separation. DNA recovery from an agarose gel includes three basic steps: binding, washing and eluting from a silica column. DNA is believed to bind to silica in the presence of high salt via a salt bridge. Following binding, DNA is washed of impurities and eluted under low salt conditions disrupting this interaction. This video goes through a step-by-step, generalized procedure for cutting out a band from the gel, gel...
13:05
Micropatterning and Assembly of 3D Microvessels
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Cited by 12 •
2016
This manuscript presents an injection molding method to engineer microvessels that recapitulate physiological properties of endothelium. The microfluidic-based process creates patent 3D vascular networks with tailorable conditions, such as flow, cellular composition, geometry, and biochemical gradients. The fabrication process and examples of potential applications are described.
FAQs
Alignment determines whether the assembled components create the intended cavity rather than a shifted or irregular one. When parts meet consistently, the gel forms with more reproducible boundaries, shapes, and dimensions. This matters because even small assembly differences can introduce variation between biological samples, complicating comparisons during imaging, handling, or mechanical testing.
A reliable seal keeps the liquid gel within the intended cavity while gelation proceeds. Without adequate contact between components, leakage can change the amount and boundaries of material, while poor containment may contribute to deformation. In biological experiments, effective sealing therefore supports more uniform samples and more dependable downstream comparisons.
The assembly requirements do not disappear when the gel forms by a different route. In both cases, the mold must maintain the intended boundaries while the liquid becomes a gel. Physical and chemical gelation therefore represent different formation conditions, whereas alignment and sealing remain practical controls for shape, containment, and sample consistency.
Reproducible dimensions provide a common physical basis for comparing samples prepared under different experimental conditions. If shape or size varies because of assembly, observed differences may be harder to interpret alongside imaging, handling, or mechanical-testing results. Standardized cavities therefore strengthen comparisons in biomaterials and tissue-engineering studies.
First, fit the mold components together so they define the intended cavity. Next, check their alignment and sealing before introducing the liquid gel. The enclosed material can then form through physical or chemical gelation while the assembly controls its boundaries. This workflow supports consistent preparation for subsequent handling, imaging, or testing.
It is useful when investigators need structured hydrogels, tissue-engineering constructs, cell-laden matrices, or experimental substrates with controlled shapes and dimensions. These formats connect mold assembly with biomaterials research, three-dimensional culture, and studies of cell behavior. Reproducible preparation helps ensure that the physical sample format does not vary unnecessarily across experiments.