Sol-gel Synthesis
Sol-gel Synthesis - Related Videos
10:44
A Guided Materials Screening Approach for Developing Quantitative Sol-gel Derived Protein Microarrays
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Cited by 1 •
2013
A guided material screening approach to develop sol-gel derived protein doped microarrays using an emerging pin-printing method of fabrication is described. This methodology is demonstrated through the development of acetylcholinesterase and multikinase microarrays, which are used for cost-effective small-molecule screening.
08:44
Synthesis and Reaction Chemistry of Nanosize Monosodium Titanate
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Cited by 1 •
2016
The surfactant mediated sol-gel synthesis of nanosized monosodium titanate is described, along with preparation of the corresponding peroxide modified material. An ion-exchange reaction with Au(III) is also presented.
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...
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...
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...
FAQs
Hydrolysis first reacts molecular precursors with water, while condensation links the resulting species into an interconnected structure. These coupled reactions transform the precursor mixture from a colloidal sol into a three-dimensional gel. Their progression determines how the material network develops before drying and heat treatment, making them central to controlling the final ceramic, glass, or hybrid structure.
Drying removes liquid from the gel, while heat treatment changes its density, porosity, and final structure. Adjusting these stages allows engineers to influence whether the product becomes a porous monolith, dense material, coating, or another designed form. The resulting structural differences affect properties such as optical, mechanical, catalytic, and barrier performance.
Sol-gel Synthesis can produce ceramics and glasses at lower temperatures than conventional solid-state processing. Its molecular starting materials also support more controlled formation of structures and compositions during sol, gel, drying, and heating stages. This processing distinction is valuable when engineers need tailored porosity, thin geometries, or specific functional properties rather than only a bulk solid.
A typical workflow begins with metal alkoxides or related molecular precursors. Hydrolysis and condensation produce a colloidal sol, which develops into a three-dimensional gel. The gel is then dried and heat-treated to establish the desired density, porosity, and structure. The sequence can be adapted to fabricate thin films, coatings, nanoparticles, fibers, or porous monoliths.
Engineering applications include sensors, corrosion-protection coatings, energy devices, catalysis, and advanced biomedical materials. The method is useful because it can generate forms and structures with tailored optical, mechanical, catalytic, or barrier properties. Selecting an appropriate product geometry, such as a film, coating, nanoparticle, fiber, or monolith, helps match the material to its intended function.
The target application guides the choice among thin films, coatings, nanoparticles, fibers, and porous monoliths. Films and coatings support surface-focused functions such as optical or barrier performance, while nanoparticles, fibers, and monoliths provide other geometries for engineered systems. Drying and heat treatment then help tune density, porosity, and structure within the selected form.