| abstract |
The present invention relates to small particles.n n n These particles are at least one crosslinked to their surface: preferably at least one crosslinked with a polyvalent acylated crosslinker which forms at least amide and ester linkages, optionally anhydride linkages with amine, hydroxyl or carboxyl functionalities of proteins and polysaccharides. A wall consisting of a mixture of protein and at least one polysaccharide, and a hydroxamic group on its surface to chelate metal ions.n n n These particles may be used in cosmetics or pharmacy, in particular for the chelation or release of metal ions.n n n Chelate, small particles |