Surfactant-mediated Sol-gel
Surfactant-mediated Sol-gel - 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.
09:34
Extraction and Characterization of Surfactants from Atmospheric Aerosols
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Cited by 26 •
2017
Methods are presented for the targeted extraction of surfactants present in atmospheric aerosols and the determination of their absolute concentrations and surface tension curves in water, including their Critical Micelle Concentration (CMC).
10:37
Observing and Quantifying Fibroblast-mediated Fibrin Gel Compaction
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Cited by 10 •
2014
Time-lapse microscopy and image processing techniques were used to observe and analyze fibroblast-mediated gel compaction and fibrin fiber realignment in an environmentally controlled bioreactor over a 48 hr period.
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...
07:20
Lavage-induced Surfactant Depletion in Pigs As a Model of the Acute Respiratory Distress Syndrome (ARDS)
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Cited by 21 •
2016
Repeated pulmonary lavages in anesthetized pigs induce lung injury resembling major aspects of human acute respiratory distress syndrome (ARDS). For this purpose the lungs are repeatedly lavaged with 0.9% saline at 37 °C. The goal of the protocol is a reproducible mitigation of gas exchange and hemodynamics for research in ARDS.
FAQs
During sol-gel processing, molecular precursors undergo hydrolysis and then condensation to build an inorganic oxide network. Surfactant micelles provide organized interfaces around which this network develops, linking molecular-scale assembly to larger pore arrangement. After the surfactant is removed, the spaces it occupied become mesopores, allowing the assembly process to determine pore ordering and void formation.
Surfactant type, precursor composition, pH, solvent, and processing conditions all influence the final architecture. These variables affect how the micelles assemble and how rapidly the inorganic network forms around them. Consequently, changing the formulation or processing environment can tune not only pore dimensions, but also how pores connect and the morphology of the resulting particles.
Surfactant removal transforms a temporary organic template into permanent mesoporosity within the inorganic solid. The resulting material retains the spatial organization established during network formation while gaining the high surface area associated with mesopores. This conversion is central to producing solids whose nanoscale architecture can support applications that depend on controlled pore structure.
A typical workflow combines a molecular inorganic precursor with a selected surfactant assembly under chosen solvent, pH, and processing conditions. Hydrolysis and condensation then develop the oxide network around the micelles. Subsequent removal of the surfactant leaves the organized mesoporous solid. Adjusting the formulation before and during processing provides control over the material's final structure.
Researchers would select these materials when high surface area and controlled nanoscale architecture are important. Mesoporous silica and metal oxides produced by the method can support catalysis, adsorption, sensing, and separation. The ability to tune pore size, connectivity, and particle morphology makes the approach useful when a material's internal structure must be matched to a particular technological function.
Mesoporous silica and metal oxides are prominent outcomes of surfactant-mediated sol-gel processing. Their properties arise from the combination of an inorganic framework and an organized mesopore network formed through templating. In chemistry research, this provides high-surface-area solids with adjustable architecture, offering a platform for studying or developing materials for adsorption, catalysis, sensing, and separation.