| abstract |
The invention relates to a magnetic liquid based on water and / or water-miscible dispersants and magnetic nanoparticles dispersed and stabilized therein, and a process for their production. DOLLAR A object of the invention is to offer a magnetic liquid which, with great biocompatibility, has a high saturation polarization and whose magnetic particles are suitable as transport vehicles for further pharmacologically and biologically active substances, and a process for their production. DOLLAR A The object is achieved according to the invention in that the magnetic nanoparticles consist of magnetic core particles and a shell of the general formula DOLLAR AM [A¶p¶-CB¶q¶] DOLLAR A, DOLLAR AM being magnetic core particles, DOLLAR AA reactive groups , DOLLAR AB bioactive groups and DOLLAR AC cyclodextrins, DOLLAR A consisting of DOLLAR A 1,4-linked glucose units (C¶6¶H¶7¶O¶5¶) ¶m¶ [(3H) ¶m¶- (p + q)], DOLLAR A where DOLLAR A m = 6 to 12, DOLLAR A p the number of A groups 1 to 3m and DOLLAR A q the number of B groups 3m-p, DOLLAR A. |