Not all hydrophilic substances lose themselves by disappearing into liquid. A colloid is a type of chemical mixture in which one substance is dispersed evenly throughout another. Unlike a solution, the particles of the dispersed substance are only suspended in the mixture. Soap is a colloid; it dissolves in both water and oils.
All of this explains the hydrogel--a network of repeating molecules linked together in a very long strand that is hydrophilic, with water acting as the dispersion medium. Hydrogels sometimes appear as colloidal gels. Hydrogels are commonly used in regenerative medicine, as scaffolds in tissue engineering to help repair or replace portions of tissues; as sustained-release drug delivery systems; to provide absorption, desloughing and debriding of necrotic and fibrotic tissue; and in dressings to heal burns or other hard-to-heal wounds.
Now one company has put this all together to help meet today's urgent need for better wound management.
For more information, visit alliqua.com, who paid for the writing and dissemination of this release.
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