| 摘要 |
The invention is a gel comprising water, sodium ions, calcium ions, and abou t 0.3 and 4 % alginate, wherein the ratio of sodium ions to calcium ions is between about 15:1 to about 45:1. In a preferred embodime nt of the invention, the alginate comprises mannuronic acid and guluronic acid in a weight ratio of between about 2:1 and 0.35:1.</SDOAB >
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