2016-08-242016-08-241999-01-26http://hdl.handle.net/10919/72378Method for magnetizing crosslinked chitosan support material involving the treatment of carboxyl group-containing, crosslinked chitosan gels with solutions of ferrous chloride followed by treatment with dilute aqueous alkali and then oxidation with molecular oxygen gas to produce highly-enriched magnetized chitosan particles, beads, films and/or coatings.application/pdfen-USMethod of making magnetic, crosslinked chitosan support materials and products thereofPatenthttp://pimg-fpiw.uspto.gov/fdd/25/640/058/0.pdf8885842106/162.2252/62.51R252/62.53252/62.56536/20C08B37/003H01F1/425864025