Display Settings:


Send to:

Choose Destination
See comment in PubMed Commons below
Nature. 1993 Feb 18;361(6413):645-7.

Drug assay using antibody mimics made by molecular imprinting.

Author information

  • 1Department of Pure and Applied Biochemistry, University of Lund, Sweden.


Ligand-binding assays are used for determination of minute amounts of substances in the bloodstream. Such assays require a receptor that specifically binds the substance of interest. The receptor used is often an antibody, but antibodies require special handling and a costly production procedure. We have used molecular imprinting, a method for creating selective recognition sites in synthetic polymers, to prepare polymers that mimic antibody combining sites. Molecular imprints made against theophylline and diazepam showed strong binding and cross-reactivity profiles similar to those of antibodies. Here we describe a new radiolabelled ligand-binding assay, the molecularly imprinted sorbent assay, which uses antibody mimics. This assay accurately measures drug levels in human serum, with results comparable to those obtained using a well established immunoassay technique. Antibody mimics, which are stable and readily prepared by molecular imprinting, may provide a useful general alternative to antibodies.

[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

How to join PubMed Commons

    Supplemental Content

    Icon for Nature Publishing Group
    Loading ...
    Write to the Help Desk