| 摘要 |
<p>A structure having magnetic functionality comprising at least one magnetic element having a fixed position, wherein said fixed element is a magnetic element, the magnetic polarity of which can be adjusted by application of an external magnetic field, and a second element being at least one movable separate magnetic element with an associated chemical or biochemical property. Preferably, said magnetic elements consist of a magnetic film deposited on a substrate in patterns, corresponding to the intended functionality of the structure, and in a size where each element of said pattern or patterns is large enough to exhibit a multi-domain magnetic microstructure. Preferably, said separate magnetic element is of a size where each particle is small enough to exhibit a mono-domain magnetic state, still large enough to exhibit a stable particle magnetic moment.</p> |
