| 摘要 |
A biologically or chemically active substance is incorporated in a unitary body with a magnetically responsive material for carrying out a specific biological or chemical procedure. This may be microbiological, immunological, serological or other biochemical examinations. The body is applied against a substrate or medium by application of an external magnetic field and a reaction region is produced at the site of the body and is measured by a reader. The magnetically responsive material is provided in a form distributed in the body so that application of the external magnetic field will be applied substantially uniformly on the body. The distributed form of the magnetically responsive material in the body corresponds substantially to the shape of the body.
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