Sol-gel Microarrays
Sol-gel Microarrays - Related Videos
10:44
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Cited by 1 •
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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.
08:29
Expression Profiling with Microarrays
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2023
Microarrays are important tools for profiling gene expression, and are based on complementary binding between probes that are attached to glass chips and nucleic acids derived from samples. Using these arrays, scientists can simultaneously evaluate the expression of thousands of genes. In addition, the expression profiles of different cells or tissue types can be compared, allowing researchers to deduce how the expression of different genes change during biological processes, and thus gain...
13:17
Microarray Analysis for Saccharomyces cerevisiae
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Cited by 3 •
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In this protocol, gene expression in yeast (Saccharomyces cerevisiae) is changed after exposure to oxidative stress induced by the addition of hydrogen peroxide (H2O2), an oxidizing agent.
11:57
Fabrication and Use of MicroEnvironment microArrays (MEArrays)
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Cited by 25 •
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A combinatorial functional screening method for gaining insights into the impacts of the molecular composition of microenvironments on cellular functions is described. The method takes advantage of existing microarray-based technologies to generate arrays of defined combinatorial microenvironments that support cell adhesion and functional analysis.
07:04
Performing Custom MicroRNA Microarray Experiments
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Cited by 8 •
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A simple procedure of performing custom microRNA microarray experiments is described. The steps include isolating RNA, labeling RNA and reference DNA, hybridizing the samples to microarrays, scanning the microarrays, quantifying and analyzing hybridization signals.
FAQs
Hydrolysis first transforms molecular precursors such as metal alkoxides or silanes, while condensation links the resulting species into an inorganic network. The relative progress of these reactions determines how the network forms and how functional molecules become entrapped or attached. Controlling this chemistry helps produce spots with suitable chemical accessibility for parallel sensing, analysis, or materials screening.
Precursor composition, additives, and drying conditions are the main tunable variables identified for these materials. Together, they influence porosity, mechanical properties, and the extent to which chemical species can reach or interact with the network. Because each spot can be chemically adjusted within a patterned array, these variables support systematic comparison of material behaviors under parallel conditions.
Localized deposition establishes the geometry and spatial organization of the array rather than producing one undifferentiated sol-gel material. This patterning allows chemically distinct spots to occupy defined positions, enabling parallel evaluation and comparison. It also supports the controlled placement of entrapped or attached functional molecules, linking each spot's composition and location to its analytical or screening role.
Preparation combines a sol-gel formulation with a localized deposition step. Molecular precursors, often metal alkoxides or silanes, are allowed to undergo hydrolysis and condensation as the deposited material develops its inorganic network. Subsequent drying conditions help determine the final spot properties. Adjusting formulation and processing parameters produces arrays tailored for chemical analysis, sensing, or material evaluation.
They are useful when many related chemistries or material formulations must be examined in parallel. Applications described for these arrays include catalyst evaluation, sensor development, biomolecular interaction studies, and surface-reaction analysis. Patterned spots reduce the sample volume needed for comparisons while preserving chemical tunability, making the approach valuable for high-throughput screening and materials discovery.
These arrays can reveal how precursor composition and processing conditions affect porous-network behavior, mechanical properties, and chemical accessibility across multiple spots. They also provide miniature platforms for parallel chemical analysis and sensing. In broader research, the resulting comparisons can guide reproducible materials discovery, catalyst or sensor assessment, and development of analytical devices with tailored surface chemistry.