Fabrication of Fe3O4 nanoparticles coated with dimethylaminobenzyl-chitosan

Alzheimer is one of degenerative disease that slowly destroys memory and cognitive ability. Currently, magnetic resonance imaging (MRI) technique combined with contrast agent is widely used to detect this disease at early stage because MRI offer better safety for patient with zero long term risk. To obtain accurate result, it is favorable that contrast agent has ability to accumulate effectively in the brain tissue that has been affected by...