| http://www.w3.org/ns/prov#value | - Still another embodiment of the present invention is a method for preparing a carrier according to this invention, said method comprising: (i) covalently coupling the polysaccharide of the first coating layer to said carrier by reaction between the amine-reactive functional groups of the carrier and the amine groups of the polysaccharide of the first coating layer; and (ii) covalently coupling the
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