Gel Surface Functionalization
Gel Surface Functionalization - Related Videos
06:41
Light Sheet Fluorescence Microscopy of Plant Roots Growing on the Surface of a Gel
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Cited by 25 •
2017
This protocol shows a plant sample preparation method for light-sheet microscopy. The setup is characterized by mounting the plant vertically on the surface of a gel and letting it grow in controlled bright conditions. This allows long-term observation of plant organ development in standardized conditions.
10:40
A Method of Targeted Cell Isolation via Glass Surface Functionalization
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Cited by 6 •
2016
This protocol describes customizable surface functionalization of the desthiobiotin, streptavidin, and APTES system in order to isolate specific cell types of interest. In addition, this manuscript covers the applications, optimization, and verification of this process.
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...
07:31
Two-Dimensional Gel Electrophoresis
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2023
Two-dimensional gel electrophoresis (2DGE) is a technique that can resolve thousands of biomolecules from a mixture. This technique involves two distinct separation methods that have been coupled together: isoelectric focusing (IEF) and sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE). This physically separates compounds across two axes of a gel by their isoelectric points (an electrochemical property) and their molecular weights. The procedure in this video covers the main...
10:18
From a 2DE-Gel Spot to Protein Function: Lesson Learned From HS1 in Chronic Lymphocytic Leukemia
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Cited by 3 •
2014
Here we describe a protocol that couples two proteomic techniques, namely 2-dimensional Electrophoresis (2DE) and Mass Spectrometry (MS), to identify differentially expressed/post-translational modified proteins among two or more groups of primary samples. This approach, together with functional experiments, allows the identification and characterization of prognostic markers/therapeutic targets.
FAQs
The modification is concentrated at the outermost layer, where added chemical groups, peptides, proteins, or other ligands interact with the surrounding environment. Because the bulk gel structure is preserved, researchers can adjust surface chemistry, wettability, protein binding, or biological recognition while retaining the underlying material’s existing physical framework.
The selected attachment route determines how functional molecules become associated with the gel interface. Covalent coupling forms a chemical linkage, adsorption relies on surface association, and light-initiated reactions use irradiation to promote modification. This choice affects how the interface presents reactive groups or biological ligands and therefore influences subsequent protein and cell interactions.
These components provide different ways to tailor the interface. Reactive groups support subsequent chemical attachment, whereas peptides and proteins can supply biologically recognizable signals. Their presence can influence cell adhesion, spreading, migration, and signaling, allowing the same underlying gel to present a more specific biological environment without requiring changes throughout the material.
Changes at the interface can regulate how cells adhere and spread, how they migrate across the material, and how they receive signals from their surroundings. Surface chemistry also affects protein binding and wettability, which can alter the biological conditions encountered by cells. These linked effects make the interface an important design variable in bioengineering.
A study typically begins by identifying the desired interface behavior, such as improved cell adhesion, controlled protein binding, or altered wettability. Researchers then select suitable surface components and an attachment strategy, including covalent coupling, adsorption, or a light-initiated reaction. The resulting gel is evaluated for the intended chemical, physical, or biological interaction while confirming that the bulk structure remains preserved.
Researchers may choose this approach when cells need a more biologically relevant interface than an untreated gel provides. Surface-bound peptides or proteins can help regulate adhesion, spreading, migration, and signaling, supporting tissue-engineering constructs and in vitro models. The method is especially useful when these changes are needed at the interface rather than throughout the gel.
In drug delivery, engineered surface chemistry can help control interactions between the gel and its surrounding biological environment, including protein binding. In biosensing, the interface can be equipped with reactive groups or ligands that influence molecular recognition at the surface. These applications use the outer layer as a controllable site for interaction while retaining the gel’s bulk structure.