| abstract |
The present invention provides a method for immobilising a polysaccharide (PS) to a solid surface, said polysaccharide having a keto-carboxy group (-C(=O-COOH) or a ketal or hemiketal group corresponding thereto, e.g. derived from KDO (2-keto-3-deoxy-D-mannooctonic acid), the method comprising the steps of: (a) forming a covalent bond between the carboxy group of the polysaccharide and a reporter molecule (RM). Comprising a recognition/substrate site (e.g. biotin or an anthraquinone); and (b) immobilising for diagnostic purposes, e.g. for the detection of bacterial infections from Gram-negative bacteria. |