| abstract |
The present invention is a particulate polymer containing a magnetic body; And it relates to a magnetic nanocomposite comprising a hydrogel present on the surface of the particulate polymer, a contrast agent composition and a pharmaceutical composition comprising the same. According to one aspect of the present invention, the hydrogel to stabilize the particulate polymer containing the magnetic material may have a selectivity for labeling factors of a particular disease. Accordingly, when the particulate polymer further includes a pharmaceutically active ingredient, the magnetic nanocomposite may be capable of selective simultaneous diagnosis and treatment of the site of onset. |