alginate

[al´jĭ-nāt] a salt of alginic acid, a colloidal substance from brown seaweed; used, in the form of calcium, sodium, or ammonium alginate, for dental impression materials.

al·gi·nate

(al'ji-nāt), An irreversible hydrocolloid consisting of salts of alginic acid, a colloidal acid polysaccharide obtained from seaweed and composed of mannuronic acid residues; used in dental impression materials.

alginate

A gelatinous polysaccharide extract from brown algae and salt of alginic acid, which is a linear polymer of mannuronic and glucuronic acids, found in the cell walls of algae. It is widely used in processed foods and in medicinal, industrial and household products, including swabs, filters and fire retardants.
Source
Laminaria spp and Macrocystis pyrifera; a chemically different version of algin is produced by the bacterium Azobacter vinelandii.

Dentistry
Alginate can be formulated with gypsum into a plaster like compound to take impressions for crown and bridgework.

Surgery
Alginates are used as foam, clotting agents and gauze in absorbable surgical dressings and packing.

Wound care
Alginate dressings are derived from seaweed made of soft non-woven fibres, and are available as pads, ropes or ribbons. Alginate dressings are extremely lightweight, absorb many times their own weight, form a gel-like covering over the wound, and maintain a moist environment. They are best used for wounds with significant exudate.
Pros
Especially useful for packing exudative wounds; do not physically inhibit wound contraction as does gauze; highly absorbent.

Cons
Requires a secondary dressing; too drying if wound has little exudate.

al·gi·nate

(al'ji-nāt) An irreversible hydrocolloid consisting of salts of alginic acid, a colloidal acid polysaccharide obtained from seaweed and composed of mannuronic acid residues; used in dental impression materials.

al·gi·nate

(al'ji-nāt) Elastic dental impression material composed of potassium alginate from kelp, calcium sulfate, and other ingredients; usually a powder to mix with water. Setting reaction cross-links alginic acid to form a semisolid.

单词	alginate
释义	alginate al·gi·nate A0196400 (ăl′jə-nāt′)n. A salt of alginic acid, widely used as a thickening or gelling agent. alginate (ˈældʒɪˌneɪt) n (Elements & Compounds) a salt or ester of alginic acid Translations alginate alginate [al´jĭ-nāt] a salt of alginic acid, a colloidal substance from brown seaweed; used, in the form of calcium, sodium, or ammonium alginate, for dental impression materials. al·gi·nate (al'ji-nāt), An irreversible hydrocolloid consisting of salts of alginic acid, a colloidal acid polysaccharide obtained from seaweed and composed of mannuronic acid residues; used in dental impression materials. alginate A gelatinous polysaccharide extract from brown algae and salt of alginic acid, which is a linear polymer of mannuronic and glucuronic acids, found in the cell walls of algae. It is widely used in processed foods and in medicinal, industrial and household products, including swabs, filters and fire retardants. Source Laminaria spp and Macrocystis pyrifera; a chemically different version of algin is produced by the bacterium Azobacter vinelandii. Dentistry Alginate can be formulated with gypsum into a plaster like compound to take impressions for crown and bridgework. Surgery Alginates are used as foam, clotting agents and gauze in absorbable surgical dressings and packing. Wound care Alginate dressings are derived from seaweed made of soft non-woven fibres, and are available as pads, ropes or ribbons. Alginate dressings are extremely lightweight, absorb many times their own weight, form a gel-like covering over the wound, and maintain a moist environment. They are best used for wounds with significant exudate. Pros Especially useful for packing exudative wounds; do not physically inhibit wound contraction as does gauze; highly absorbent. Cons Requires a secondary dressing; too drying if wound has little exudate. al·gi·nate (al'ji-nāt) An irreversible hydrocolloid consisting of salts of alginic acid, a colloidal acid polysaccharide obtained from seaweed and composed of mannuronic acid residues; used in dental impression materials. al·gi·nate (al'ji-nāt) Elastic dental impression material composed of potassium alginate from kelp, calcium sulfate, and other ingredients; usually a powder to mix with water. Setting reaction cross-links alginic acid to form a semisolid. ThesaurusSeealginic acid
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