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Magnetic Hollow Spheres of Periodic Mesoporous Organosilica and Fe 3 O 4 Nanocrystals: Fabrication and Structure Control
Author(s) -
Zhang L.,
Qiao S. Z.,
Jin Y. G.,
Chen Z. G.,
Gu H. C.,
Lu G. Q.
Publication year - 2008
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200700900
Subject(s) - materials science , mesoporous material , spheres , mesoporous organosilica , nanocrystal , nanotechnology , nanoparticle , fabrication , saturation (graph theory) , magnetic nanoparticles , chemical engineering , drug delivery , coercivity , mesoporous silica , magnetization , magnetic field , condensed matter physics , organic chemistry , catalysis , alternative medicine , mathematics , chemistry , pathology , engineering , medicine , physics , combinatorics , astronomy , quantum mechanics
Periodic mesoporous organosilica magnetic hollow spheres (PMO–MHS) are synthesized. The particle size, shell wall thickness and saturation magnetization value of PMO–MHS are tunable by varying the ratio of templating agent to magnetic nanoparticles. The high saturation magnetization ensures that these functional mesoporous hollow spheres can be efficient materials for targeted drug delivery assisted by magnetic fields.