结论：聚氨基葡糖海绵能有效运载抗生素并减少伤口内细菌数量。
Conclusions: the chitosan sponges are effective delivering the antibiotic and reducing the bacteria within the wounds.
为制做敷药绷带的基层，专家们把蟹壳研磨成粉末状，又加人一些化学制剂，将基层的聚乙酸氨基葡糖转换成聚氨基葡糖。
To make the dressing, the researchers grind crab shells to a fine powder and mix it with chemicals to convert the base material, chitin, into chitosan.
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