Chitosan Hydrogel
Chitosan Hydrogel - Related Videos
08:05
Preparation of Chitosan-based Injectable Hydrogels and Its Application in 3D Cell Culture
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Cited by 13 •
2017
Here we describe a facile preparation of chitosan-based injectable hydrogels using dynamic imine chemistry. Methods to adjust the hydrogel’s mechanical strength and its application in 3D cell culture are presented.
08:26
Development of Amelogenin-chitosan Hydrogel for In Vitro Enamel Regrowth with a Dense Interface
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Cited by 32 •
2014
In this article, we describe a protocol for fabricating an amelogenin-chitosan hydrogel for superficial enamel reconstruction. Organized in situ growth of apatite crystals in the hydrogel formed a dense enamel-restoration interface, which will improve the effectiveness and durability of restorations.
09:39
Constructing a Collagen Hydrogel for the Delivery of Stem Cell-loaded Chitosan Microspheres
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Cited by 6 •
2012
A major hurdle in current stem cell therapies is determining the most effective method to deliver these cells to host tissues. Here, we describe a chitosan-based delivery method that is efficient and simple in approach, while allowing adipose-derived stem cells to maintain their multipotency.
07:48
Engineering a Bilayered Hydrogel to Control ASC Differentiation
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Cited by 12 •
2012
This protocol focuses on utilizing the inherent ability of stem cells to take cue from their surrounding extracellular matrix and be induced to differentiate into multiple phenotypes. This methods manuscript extends our description and characterization of a model utilizing a bilayered hydrogel, composed of PEG-fibrin and collagen, to simultaneously co-differentiate adipose-derived stem cells1.
07:25
Collagen Hydrogels
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2023
Collagen is another widely used biomaterial that has found popularity in commercial applications, such as photography. Collagen has more recently been used in tissue engineering applications, by creating hydrogels that provide structure to engineered tissue. This video introduces collagen as a biomaterial, demonstrates how it is harvested from porcine skin, and shows how the material is used to create a hydrogel for tissue engineering applications. Finally, several applications of the material...
FAQs
The network forms when chitosan chains are connected through physical or chemical crosslinks. These connections prevent the hydrated material from dispersing while leaving spaces that can hold water. The balance between chain connectivity and hydration determines whether the matrix remains intact as it swells. In bioengineering, this supports a stable environment rather than a simple polymer solution.
Surrounding ions can alter interactions involving chitosan’s amino groups, changing how much water the network takes up and how strongly it retains its shape. Because swelling and mechanical behavior are linked to these interactions, ion conditions become design variables rather than background details. Controlling them helps match the hydrogel’s behavior to a biological environment.
The key comparison is how the network is formed: physical crosslinking organizes chains through nonchemical interactions, whereas chemical crosslinking uses chemical connections. Either route can be considered when designing the matrix, but the resulting involvement of amino groups, crosslinkers, and ions may differ. Comparing these approaches helps bioengineers tune integrity and swelling for particular applications.
Composition, crosslinking method, crosslinker involvement, amino-group interactions, and surrounding ions all influence the balance between swelling and structural integrity. Increasing attention to these variables allows researchers to adjust how much water the matrix absorbs and how well it maintains its form. This tunability is important when the same material platform is adapted for different biological purposes.
A basic workflow begins by selecting the chitosan formulation, choosing physical or chemical crosslinking, and adjusting relevant crosslinker or ion conditions. Researchers then consider the resulting swelling and mechanical integrity in relation to the intended use. This composition-to-performance approach connects material preparation with scaffold, delivery, wound-healing, or tissue-repair requirements without treating one formulation as universally suitable.
Their water-rich, porous matrices provide a three-dimensional environment in which cells can be studied within a structured material rather than only in a flat setting. Researchers can adjust composition and crosslinking to influence swelling and mechanical properties, then relate those material features to cell-growth outcomes. This makes the system relevant to bioengineering studies of regenerative environments.
The hydrated network can serve as a carrier in which composition, crosslinking, and swelling are adjusted to support controlled delivery. Amino-group interactions and surrounding ions provide additional variables for tuning the matrix, while structural integrity helps it retain its form. This design flexibility makes chitosan hydrogels relevant to therapeutic systems that require material properties matched to delivery goals.
In wound-healing and tissue-repair research, the hydrogel provides a biologically relevant, water-rich matrix whose swelling and mechanical properties can be adjusted through its composition and crosslinking. Its biocompatible and biodegradable character supports investigation of temporary engineered environments. Researchers can therefore study how material design contributes to repair-oriented systems alongside scaffold and therapeutic applications.