| 摘要 |
A visually observable material for medical treatment, which is preferable as an adhesion preventive material and a hemostatic material for biological organisms includes a crosslinking composition comprising at least two components of a crosslinking polysaccharide derivative with an active ester group reactive with active hydrogen in the co-presence of an alkali, where the active ester group is preliminarily introduced in a side chain of a polysaccharide and the crosslinking polysaccharide derivative is not yet crosslinked, and a carbonate including at least one type of carbonate generating divalent carbonate ion in an amount at a mass ratio of 0.03 or more to the polysaccharide derivative.
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