Methyl Cellulose Coating
Methyl Cellulose Coating - Related Videos
07:34
Biofuels: Producing Ethanol from Cellulosic Material
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Source: Laboratories of Margaret Workman and Kimberly Frye - Depaul University In this experiment, cellulosic material (such as corn stalks, leaves, grasses, etc.) will be used as a feedstock for the production of ethanol. The cellulosic material is first pretreated (ground and heated), digested with enzymes, and then fermented with yeast. Ethanol production is monitored using an ethanol probe. The experiment can be extended to optimize ethanol production by varying the feedstock used,...
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DNA Methylation Analysis
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Methylation at CpG dinucleotides is a chemical modification of DNA hypothesized to play important roles in regulating gene expression. In particular, the methylation of clusters of methylation sites, called “CpG islands”, near promoters and other gene regulatory elements may contribute to the stable silencing of genes, for example, during epigenetic processes such as genomic imprinting and X-chromosome inactivation. At the same time, aberrant CpG methylation has been shown to be associated with...
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Manufacturing Of Robust Natural Fiber Preforms Utilizing Bacterial Cellulose as Binder
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Cited by 19 •
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We present a novel method of manufacturing rigid and robust short natural fiber preforms using a papermaking process. Bacterial cellulose acts simultaneously as the binder for the loose fibers and provides rigidity to the fiber preforms. These preforms can be infused with a resin to produce truly green hierarchical composites.
21:24
Methylated DNA Immunoprecipitation
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This video demonstrates the protocol for methylated DNA immunoprecipitation (MeDIP). MeDIP is a two day procedure that selectively extracts methylated DNA fragments from a genomic DNA sample using antibodies with specificity for 5 -methylcytosine (anti-5 mC).
02:52
Preparation of Bacterial Nanocellulose Pellicles from Cellulose-Producing Bacteria
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Source: Arias, S. L., et al. Fabrication of a Functionalized Magnetic Bacterial Nanocellulose with Iron Oxide Nanoparticles. J. Vis. Exp. (2016).This video demonstrates the production of nanocellulose by culturing cellulose-producing bacteria in a nutrient medium containing mannitol. The bacteria metabolize mannitol into glucose, which is then polymerized and extruded as glucan chains that crystallize into cellulose sheets, forming a three-dimensional matrix at the air–liquid interface. The...
FAQs
Its hydrated, viscous film creates a physical interface that weakens direct contact between cells and the underlying substrate. Cells therefore have less opportunity to attach and spread across the surface. This shift redirects cell organization toward remaining in suspension or interacting with neighboring cells, making the coating useful when surface attachment would interfere with aggregate formation or three-dimensional growth.
When cells cannot readily anchor to the culture surface, they are less likely to spread as an attached layer. Instead, cells remain together in suspension and can form multicellular aggregates. This behavior supports the generation of embryoid bodies and spheroids, in which three-dimensional organization becomes more controllable than in a strongly surface-attached culture.
Methyl cellulose can function while maintained on a substrate or as the solution dries into a film. In either state, the relevant outcome is a hydrated, viscous interface that reduces cell interaction with the underlying surface. The resulting environment can be selected to support suspension growth and collective cell organization rather than attachment-driven spreading.
An attachment-supporting surface encourages cells to interact directly with the substrate and spread across it, whereas methyl cellulose coating limits those interactions. This difference changes the dominant growth pattern: cells are more likely to remain suspended and associate with one another. Consequently, the coating is suited to experiments focused on aggregates, spheroids, or other three-dimensional structures.
The method begins by applying a water-soluble methyl cellulose solution to the culture surface. The solution may then dry or remain maintained on the substrate, producing the non-adhesive interface used during culture. Cells are introduced under these conditions to reduce attachment to the underlying surface and encourage suspension behavior, aggregate formation, or three-dimensional growth.
It is useful when the experimental goal requires cells to remain together without spreading across the culture surface. By reducing direct attachment, the coating supports suspension culture and collective organization. This can help investigators examine cell aggregates under conditions that provide greater control over three-dimensional growth than a surface that promotes widespread cell attachment.
The non-adhesive environment encourages cells to remain in suspension and interact with neighboring cells, creating conditions favorable for multicellular aggregate formation. These aggregates can develop as embryoid bodies or spheroids rather than surface-spread populations. Such structures are relevant to studies of three-dimensional growth, differentiation, and the development of tissue models.
Methyl cellulose coating helps standardize cell-based experiments by creating a controlled environment with reduced substrate interaction. More consistent suspension and aggregate formation can improve control over three-dimensional growth and differentiation. In turn, the method supports development of embryoid bodies, spheroids, and tissue models in which cell organization is an important experimental outcome.