| 摘要 |
<p>Metal surfaces have chemical species, e.g. biologically active water-soluble macromolecular substances such as proteins, bonded thereto by means of an interposed coordinating polymer. The polymer has a first set of functional groups bonded to the surface and a second set of functional groups bonded to the species; the groups of the first set are pendant from the polymer chain or form part thereof, each such group preferably containing an atom with electrons for donation to the metal surface to form the bond therewith. The metal may be a transition metal such as a Group 11 metal, e.g. Au or Ag, and, in the coordinating polymer, the sets may comprise functional groups that are the same or different chemically, e.g. the first set may comprise S-containing groups and the second set amino groups. A specific example of co-ordinating polymer that may be used is a water soluble form of poly(iminoethene)N-dithiocarboxylate. Metal surfaces so treated may be useful as biosensor materials such as in immunosensors.</p> |
