Hydrogel Microspheres
Hydrogel Microspheres - Related Videos
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.
01:24
Evaluating Neurite Growth in Bioprinted Skeletal Muscle Constructs with a Microsphere Delivery System
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2025
Take bioprinted skeletal muscle constructs.These constructs contain fibrin hydrogel pillars with embedded muscle fibers and microspheres.The microsphere is a porous polymer structure enclosing neurotrophic factors.Take dorsal root ganglia isolated from chick embryos.Place one ganglion on each construct and incubate.The neurotrophic factors are released from the microspheres at a controlled physiological concentration, facilitating the sprouting of projections from the neurons called...
08:06
Fabrication of Polymer Microspheres for Optical Resonator and Laser Applications
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Cited by 3 •
2017
Protocols for the synthesis of microspheres from polymers, the manipulation of microspheres, and micro-photoluminescence measurements are presented.
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...
08:33
Hydrogel Synthesis
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2023
Source: Amber N. Barron, Ashlea Patterson, and Taylor D. Sparks, Department of Materials Science and Engineering, The University of Utah, Salt Lake City, UT Hydrogels are a versatile class of cross-linked polymers produced through relatively simple procedures and with generally inexpensive materials. They can be formed from solution and involve a polymer backbone formed from monomer reagents, an initiator which makes the polymer reactive and a crosslinking species which binds the polymer chains...
FAQs
The crosslinked polymer network creates pathways that water and dissolved materials can move through. Its structure influences how quickly proteins, drugs, or other bioactive cargo diffuse, while also helping retain encapsulated contents. By adjusting matrix characteristics, researchers can control whether a material remains localized, moves gradually, or is released under the intended biological conditions.
Microsphere size, polymer composition, porosity, and degradation are central design variables. Size and porosity influence transport and access to encapsulated materials, while composition and degradation affect stability and the duration of the microenvironment. Coordinating these properties allows researchers to tailor biological interactions for delivery, cell encapsulation, tissue engineering, or biomolecule screening.
The hydrated, crosslinked environment can surround cells, proteins, drugs, or other bioactive materials and regulate their exposure to the surrounding system. Encapsulation may protect sensitive cargo while the matrix controls its diffusion and release. This combination is useful when a treatment or biological signal must remain localized rather than disperse immediately.
Design starts by matching microsphere characteristics to the intended function. Researchers select and adjust size, composition, porosity, and degradation according to whether the goal is controlled release, cargo protection, cell support, or a defined microenvironment. These choices determine transport behavior and biological interactions, helping align the microspheres with the requirements of a particular application.
They are useful when localized treatment or controlled release is important. Their matrix can retain drug cargo and regulate its movement, while the microsphere format provides a defined platform for delivery within a biological setting. In regenerative medicine, the same tunable environment can support efforts to study or repair biological systems through controlled interactions with cells and bioactive materials.
Hydrogel microspheres provide platforms for examining how cells and biomolecules behave within tailored three-dimensional microenvironments. Applications include cell encapsulation, biomolecule screening, tissue engineering, drug delivery, and regenerative medicine. Depending on the design, researchers can investigate transport, release, protection of sensitive cargo, localized treatment, or conditions that may help support biological repair.