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924482

Sigma-Aldrich

Methacrylated Alginate

Medium Viscosity, Low endotoxin

Synonym(s):

3D Bioprinting, AlMA, AlgMA, Alginate, Methacrylate, Sodium Alginate

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About This Item

UNSPSC Code:
12162002
NACRES:
NA.23

description

Degree of Substitution: 15-25%

Quality Level

form

(Powder or chunk(s) or fibers)

impurities

<10 CFU/g Bioburden (Aerobic)
<10 CFU/g Bioburden (Fungal)
<100 EU/g Endotoxin

color

white to off-white

suitability

conforms to structure for NMR

Related Categories

Application

This product is a low endotoxin version alginate methacrylate ready to be used in biomedical applications.
Alginate is an anionic polysaccharide that is widely used in pharmaceutical and biomedical applications due to its non-animal origin, low toxicity, biocompatibility, and biodegradability. Alginate hydrogels are commonly used to fabricate tissue engineering scaffolds, bioinks for 3D bioprinting, and nanocarriers for drug & gene delivery. Due to the thermal or photochemical crosslinking of the terminal methacrylates, methacrylate-functionalized alginate can be used to prepare hydrogels resistant to matrix degradation. Properties of the resulting hydrogel (e.g., stiffness, swelling ratio, rate of degradation) can be tuned by alginate molecular weight, degree of methacrylate functionalization, and crosslink density.

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


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K A Smeds et al.
Journal of biomedical materials research, 54(1), 115-121 (2000-11-15)
In situ photopolymerization is an exciting new technique for tissue engineering. Two photocrosslinkable polysaccharides composed of alginate and hyaluronan are described that upon photolysis form soft, flexible, and viscoelastic hydrogels. The degree of methacrylate modification and thus covalent affects mechanical
Jia Jia et al.
Acta biomaterialia, 10(10), 4323-4331 (2014-07-08)
Recent advances in three-dimensional (3-D) printing offer an excellent opportunity to address critical challenges faced by current tissue engineering approaches. Alginate hydrogels have been used extensively as bioinks for 3-D bioprinting. However, most previous research has focused on native alginates
Kuen Yong Lee et al.
Progress in polymer science, 37(1), 106-126 (2011-11-30)
Alginate is a biomaterial that has found numerous applications in biomedical science and engineering due to its favorable properties, including biocompatibility and ease of gelation. Alginate hydrogels have been particularly attractive in wound healing, drug delivery, and tissue engineering applications
Tarun Agarwal et al.
ACS applied materials & interfaces, 8(47), 32132-32145 (2016-12-10)
Success of bone tissue engineering (BTE) relies on the osteogenic microarchitecture of the biopolymeric scaffold and appropriate spatiotemporal distribution of therapeutic molecules (growth factors and drugs) inside it. However, the existing technologies have failed to address both the issues together.
Eneko Axpe et al.
International journal of molecular sciences, 17(12) (2016-11-30)
Three-dimensional (3D) bioprinting is on the cusp of permitting the direct fabrication of artificial living tissue. Multicellular building blocks (bioinks) are dispensed layer by layer and scaled for the target construct. However, only a few materials are able to fulfill

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