Mesoporous Thin Film
Mesoporous Thin Film - Related Videos
13:00
Low Molecular Weight Protein Enrichment on Mesoporous Silica Thin Films for Biomarker Discovery
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Cited by 11 •
2012
We developed a technology based on mesoporous silica thin film for the selective recovery of low molecular weight proteins and peptides from human serum. The physico-chemical properties of our mesoporous chips were finely tuned to provide substantial control in peptide enrichment and consequently profile the serum proteome for diagnostic purposes.
07:58
Electroplating of Thin Films
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2023
Source: Logan G. Kiefer, Andrew R. Falkowski, and Taylor D. Sparks, Department of Materials Science and Engineering, The University of Utah, Salt Lake City, UT Electroplating is a process that uses electric current to reduce dissolved metal cations so that they form a thin coating on an electrode. Other thin film deposition techniques include chemical vapor deposition (CVD), spin coating, dip coating, and sputter deposition among others. CVD uses a gas-phase precursor of the element to be...
07:22
Optical Detection of E. coli Bacteria by Mesoporous Silicon Biosensors
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Cited by 16 •
2013
A label-free optical biosensor for rapid bacteria detection is introduced. The biosensor is based on a nanostructured porous Si, which is designed to directly capture the target bacteria cells onto its surface. We use monoclonal antibodies, immobilized onto the porous transducer, as the capture probes. Our studies demonstrate the applicability of these biosensors for the detection of low bacterial concentrations within minutes with no prior sample processing (such as cell lysis).
10:08
Fabrication of Large-area Free-standing Ultrathin Polymer Films
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Cited by 10 •
2015
We describe a method for the fabrication of large-area (up to 13 cm diameter) and ultrathin (as thin as 8 nm) polymer films. Instead of using a sacrificial interlayer to delaminate the film from its substrate, we use a self-limiting surface treatment suitable for arbitrarily large areas.
11:02
Synthesis and Catalytic Performance of Gold Intercalated in the Walls of Mesoporous Silica
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2015
Here, we present a protocol with a sol-gel process to synthesize gold intercalated in the walls of mesoporous materials (GMS), which is confirmed to possess a mesoporous matrix with gold intercalated in the walls imparting great stability and recyclability.
FAQs
During sol-gel processing, surfactant or block-copolymer molecules organize the inorganic precursors around a temporary molecular arrangement. This arrangement establishes the future pore geometry before the template is removed. The approach therefore links precursor organization to the film’s pore ordering and provides a way to create controlled transport pathways within a supported coating.
Template removal converts the precursor-template arrangement into accessible porosity. Once the surfactant or block copolymer is removed, the remaining inorganic framework contains interconnected voids rather than the original organizing material. This transformation creates the high-area internal interfaces needed for molecular transport, selective adsorption, sensing, and reactions occurring within or near the film.
These adjustable features determine how molecules interact with and move through the coating. Pore size influences available transport pathways, while surface chemistry affects interactions at the pore walls. Composition contributes to the film’s chemical behavior. Together, these variables allow a coating to be tailored for catalysis, molecular separation, chemical sensing, or selective adsorption.
A typical workflow begins by combining inorganic precursors with a surfactant or block-copolymer template during sol-gel processing. The inorganic material organizes around the template as a thin supported layer forms. Subsequent template removal leaves the pore network in the coating. The resulting film can then be selected or adjusted according to its intended chemical function.
They are useful when researchers need nanoscale porosity integrated into a compact coating rather than a separate bulk material. Their tunable composition, pore dimensions, and surface chemistry support catalysis, molecular separation, chemical sensing, and selective adsorption. The thin-film format also makes them relevant to compact devices and controlled reactions at material interfaces.
Their pores provide extensive internal surface area, while the pore-wall chemistry can be adjusted to influence molecular interactions. An analyte can therefore encounter a tailored interface as it moves through or associates with the film. This combination supports chemical sensing and selective adsorption by coupling molecular access with chemically controlled interactions inside a supported layer.