Alginate Microparticles
Alginate Microparticles - Related Videos
12:22
Synthesis of Thermogelling Poly(N-isopropylacrylamide)-graft-chondroitin Sulfate Composites with Alginate Microparticles for Tissue Engineering
0 Views •
Cited by 11 •
2016
An injectable tissue engineering scaffold composed of poly(N-isopropylacrylamide)-graft-chondroitin sulfate (PNIPAAm-g-CS)-containing alginate microparticles was prepared. The adhesive strength, swelling properties and in vitro biocompatibility are analyzed in this study. The characterization techniques developed here may be applicable to other thermogelling systems.
10:33
Generation of Alginate Microspheres for Biomedical Applications
0 Views •
Cited by 33 •
2012
In the following sections, we outline procedures for the preparation of alginate microspheres for use in biomedical applications. We specifically illustrate a technique for creating multilayered alginate microspheres for the dual purpose of cell and protein encapsulation as a potential treatment for type 1 diabetes.
07:13
Alginate Encapsulation of Pluripotent Stem Cells Using a Co-axial Nozzle
0 Views •
Cited by 14 •
2015
We established a method of encapsulating pluripotent stem cells (PS cells) into alginate hydrogel capsules using a co-axial nozzle. This prevents cells from aggregating excessively and limits the shear stress experienced by cells in suspension culture. The technique is applicable to the mass production of PS cells as well as research on stem cell niche.
03:50
Isolation of Microparticles Derived from Apoptotic T Lymphocytes In Vitro
0 Views •
2025
This video demonstrates the generation and isolation of T lymphocyte-derived microparticles, LMPs, from T lymphocytes following treatment with actinomycin-D.
10:20
Mammalian Cell Encapsulation in Alginate Beads Using a Simple Stirred Vessel
0 Views •
Cited by 13 •
2017
This video and manuscript describe an emulsion-based method to encapsulate mammalian cells in 0.5% to 10% alginate beads which can be produced in large batches using a simple stirred vessel. The encapsulated cells can be cultured in vitro or transplanted for cellular therapy applications.
FAQs
Ionic crosslinking gives these particles their internal structure. When alginate chains encounter divalent cations such as calcium, the ions connect chains and generate a water-rich polymer network. This network provides the structural basis for retaining biological cargo while allowing researchers to tune particle properties for delivery or encapsulation.
Particle size and porosity are important design variables because they can be adjusted during fabrication. Their tunability lets researchers tailor how alginate microparticles accommodate encapsulated material and regulate its release. In bioengineering, this means particle design can be matched to the intended delivery or tissue-related use.
The water-rich polymer network helps create an aqueous environment within the particle while the crosslinked structure retains the encapsulated material. This combination is relevant when the cargo includes cells, proteins, drugs, or other therapeutic agents. It supports protection of sensitive biological materials and enables controlled release rather than unrestricted delivery.
Mild processing conditions matter because they make the platform suitable for biological cargo that may need protection during particle formation. The overview connects this feature with applications involving drugs, cells, proteins, and therapeutic agents. In practice, the gentle fabrication context supports the use of alginate microparticles across diverse bioengineering settings.
A basic fabrication workflow starts by combining alginate with the biological material intended for encapsulation, followed by ionic crosslinking with a divalent cation such as calcium. Crosslinking converts the alginate chains into the particle’s water-rich network. Researchers can then consider the resulting size and porosity when designing controlled delivery or protection of the selected cargo.
Alginate microparticles can serve different roles depending on the cargo and desired outcome. They are relevant to drug delivery when release must be controlled, to tissue engineering and regenerative medicine when biomaterial-based support is needed, and to cell-based therapies when cells require encapsulation. These uses reflect their tunability in structure, porosity, and cargo handling.
The main outcomes to consider are whether the particles successfully encapsulate the selected material, protect sensitive cargo, and provide controlled release. Their tunable size and porosity also help connect fabrication choices with delivery behavior. For bioengineering studies, these outcomes indicate whether the particle design is appropriate for drugs, proteins, cells, or other therapeutic agents.