Gel Casting Procedure
Gel Casting Procedure - Related Videos
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Experimental Procedure for Warm Spinning of Cast Aluminum Components
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Cited by 4 •
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An experimental protocol for instrumented warm rotary forming of cast aluminum alloys employing a bespoke industrially scaled apparatus is presented. Experimental considerations including thermal and mechanical effects are discussed, as well as similitude with full-scale processing of automotive wheels.
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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...
08:32
Indirect Fabrication of Lattice Metals with Thin Sections Using Centrifugal Casting
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Cited by 8 •
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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.
07:31
Two-Dimensional Gel Electrophoresis
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2023
Two-dimensional gel electrophoresis (2DGE) is a technique that can resolve thousands of biomolecules from a mixture. This technique involves two distinct separation methods that have been coupled together: isoelectric focusing (IEF) and sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE). This physically separates compounds across two axes of a gel by their isoelectric points (an electrochemical property) and their molecular weights. The procedure in this video covers the main...
06:42
Cerebrovascular Casting of the Adult Mouse for 3D Imaging and Morphological Analysis
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Cited by 29 •
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In this article, we present a simple, practical technique for cerebrovascular casting that is easy to perform and can be utilized to image the vascular tree of the adult mouse brain.
FAQs
The final gel structure arises when the liquid mixture either polymerizes or cools, depending on the material. That transition fixes a porous network, while the mold, comb, or spacer establishes the matrix geometry. Together, these features determine whether wells and lanes form consistently, which is essential for comparing separated nucleic acids or proteins across samples.
Composition and thickness are key variables because they shape the resulting matrix and its separation behavior. A controlled formulation helps produce a consistent porous structure, while uniform thickness supports comparable lanes. In biological techniques, controlling these properties improves reproducibility when gels are used for nucleic-acid separation, protein characterization, or related assays.
Degassing, leveling, and curing function as complementary quality-control steps. Degassing supports a more uniform cast, leveling helps maintain consistent geometry, and curing allows the matrix to become sufficiently established before use. When these conditions are controlled, the resulting wells and lanes are more reproducible, reducing variation during downstream molecular analysis.
A typical workflow begins by preparing the liquid gel mixture, addressing degassing, and positioning a comb or spacer within a mold. The mixture is then poured around that insert, the mold is kept level, and the material is allowed to polymerize or cool. This sequence creates the intended wells, thickness, and solid matrix for subsequent assays.
The casting material determines how the liquid becomes stable: some systems require polymerization, whereas others solidify through cooling. This distinction affects the timing and conditions of the casting step, even though both routes create a porous matrix. Recognizing the mechanism helps researchers plan when the gel is ready for electrophoresis or another related biological assay.
Researchers apply the resulting gels to separate nucleic acids, characterize proteins, perform genotyping, and support quality control. The procedure is therefore relevant whenever a biological workflow depends on consistent lanes and a defined matrix. Its value lies not only in producing a gel, but in creating a reproducible platform for comparing molecular samples or checking assay performance.