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Merck

923842

Sigma-Aldrich

Alginate Aldehyde

35% aldehyde content, medium viscosity

别名:

Alginate aldehyde, Oxidized alginate

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About This Item

线性分子式:
(C6H7NaO6)n(C6H3NaO6)m
分類程式碼代碼:
12352201
NACRES:
NA.23

品質等級

描述

Degree of functionalization: 30-40%

形狀

powder

薄層電阻

15.6m Ω/sq (25 mum after curing at 150 Celsius for 5 min on glass)

顏色

white to off-white

適合性

conforms to structure for NMR

儲存溫度

2-8°C

SMILES 字串

CO[C@H]1[C@@H](O)[C@H](O)[C@H](O/C(C=O)=C\C([O-])=O)O[C@@H]1C([O-])=O.OC2[C@H](OC(O)C=O)[C@@H](C([O-])=O)O[C@@H](OC)[C@H]2O

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應用

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[1]. Alginate hydrogels are commonly used to fabricate tissue engineering scaffolds[3], bioinks for 3D bioprinting[2][4], and nanocarriers for drug &gene;delivery.

Alginate is commonly crosslinked into a hydrogel via ionic-crosslinking with divalent cations (e.g., Ca2+). To prevent matrix degradation, alginate can be functionalized with reactive groups that can be chemically crosslinked, such as aldehydes.[5] Aldehyde- functionalized alginate can be used to prepare hydrogels by reaction with amine groups, such as gelatin through Schiff-base reaction to form a chemical hydrogel. This material can be used in a variety of biomedical applications such as the delivery of drugs, cells, or biomolecules in different tissues, wound healing, and muscle and bone tissue engineering. [6]

儲存類別代碼

11 - Combustible Solids

水污染物質分類(WGK)

WGK 3

閃點(°F)

Not applicable

閃點(°C)

Not applicable


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分析证书(COA)

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B Balakrishnan et al.
Carbohydrate research, 340(7), 1425-1429 (2005-04-28)
Periodate oxidation of sodium alginate in aqueous solution as well as a dispersion in 1:1 ethanol-water was examined. The oxidation proceeded smoothly in both media, and the kinetics of oxidation was surprisingly similar. Polymer cleavage was observed in both media
Biji Balakrishnan et al.
Biomaterials, 26(18), 3941-3951 (2005-01-01)
The injectable polymer scaffolds which are biocompatible and biodegradable are important biomaterials for tissue engineering and drug delivery. Hydrogels derived from natural proteins and polysaccharides are ideal scaffolds for tissue engineering since they resemble the extracellular matrices of the tissue

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