ZHANG Hongru, LIU Wentao, HE Suqin, et al. Radiation preparation and characterization of PNIPA/ Fe3O4 hydrogels with rapid responsibility[J]. Journal of Radiation Research and Radiation Processing, 2009,27(3):139-144.
ZHANG Hongru, LIU Wentao, HE Suqin, et al. Radiation preparation and characterization of PNIPA/ Fe3O4 hydrogels with rapid responsibility[J]. Journal of Radiation Research and Radiation Processing, 2009,27(3):139-144.DOI:
Nano-magnetic particles (Fe,3,O,4,) prepared by chemical-co-deposition method were modified by radiation-induced polymerization of N-isopropylacrylamide (NIPA), MBA and PEG. It has been found that the distribution of the porous magnetic particles was uniform and the equilibrium swelling ratio of porous magnetic hydrogels is larger than that of nonporous magnetic hydrogels. The losing water ratio of the porous magnetic hydrogels is 96 % which is enhanced about 76 % compared with ordinary magnetic hydrogels. And with the addition of PEG, porous magnetic hydrogels shows a LCST (low critical solution temperature) around 37 ℃ and has rapid responsibility.