USING AN ALTERNATING MAGNETIC FIELD FOR COVERING A METALLIC STENT WITH A NEW MAGNETIC COMPOSITE

摘要

In the paper is presented the possibility of using the new magnetic composite (MC) (prepared in situ during functionalization of poly(maleic anhydride-co-3,9-divinyl-2,4,8,10-tetraoxaspiro [5.5] undecane) copolymer, by opening the anhydride ring with erythritol and by introducing magnetic nanoparticles into the polymer matrix) for covering the stent surface and improving the stent functionalities. The near infrared chemical imagistic NIR-CI analysis is used to investigate the spatial distribution of magnetite in the copolymer matrix while the acute toxicity investigation by calculating LD_(50) allows the integration of MC in the group of low toxic substances. The covering of stent with MC is followed by optical microscopy and by the magnetization estimation.