Since the introduction of nanotechnology, nanoscale materials have developed rapidly and have been applied in various fields including in the pharmaceutical industry, medicine, and tissue engineering. Among a variety ...Since the introduction of nanotechnology, nanoscale materials have developed rapidly and have been applied in various fields including in the pharmaceutical industry, medicine, and tissue engineering. Among a variety of nanomaterials, magnetic iron oxide nanoparticles （IONPs） have been intensively investigated for numerous in vivo applications such as gene and drug delivery, diagnostics, cell labeling and sorting. Compared to nanoparticles made from other materials, IONPs have several additional unique applications due to their magnetic properties, for example, magnetic cell separation,展开更多
New magnetic air-stable nanogranular Fe thin films of 10 ± 1.2 nm thickness were prepared onto silicon wafers at 150℃ under inert atmosphere by controlled Chemical Vapor Deposition (CVD) of triiron dodecacarbony...New magnetic air-stable nanogranular Fe thin films of 10 ± 1.2 nm thickness were prepared onto silicon wafers at 150℃ under inert atmosphere by controlled Chemical Vapor Deposition (CVD) of triiron dodecacarbonyl (Fe3(CO)12). These thin films, composed of sintered elemental Fe nanoparticles of 4.1 ± 0.7 nm diameter, are protected from air oxidation by a very thin carbon layer. The saturation magnetization of these thin Fe coatings was found to be close to that of bulk iron. The electrical resistivity behavior of the ferromagnetic thin films is similar to that of a semiconductor. In the present manuscript, these Fe thin coatings on Si wafers have been used as a catalyst for synthesizing crystalline carbon nanotubes (CNTs), by CVD using ethylene as a carbon precursor.展开更多
基金funded by the European Community’s Seventh Framework Program(FP7-HEALTH-2011)under Grant No.278612(BIOHYBRID)
文摘Since the introduction of nanotechnology, nanoscale materials have developed rapidly and have been applied in various fields including in the pharmaceutical industry, medicine, and tissue engineering. Among a variety of nanomaterials, magnetic iron oxide nanoparticles （IONPs） have been intensively investigated for numerous in vivo applications such as gene and drug delivery, diagnostics, cell labeling and sorting. Compared to nanoparticles made from other materials, IONPs have several additional unique applications due to their magnetic properties, for example, magnetic cell separation,
文摘New magnetic air-stable nanogranular Fe thin films of 10 ± 1.2 nm thickness were prepared onto silicon wafers at 150℃ under inert atmosphere by controlled Chemical Vapor Deposition (CVD) of triiron dodecacarbonyl (Fe3(CO)12). These thin films, composed of sintered elemental Fe nanoparticles of 4.1 ± 0.7 nm diameter, are protected from air oxidation by a very thin carbon layer. The saturation magnetization of these thin Fe coatings was found to be close to that of bulk iron. The electrical resistivity behavior of the ferromagnetic thin films is similar to that of a semiconductor. In the present manuscript, these Fe thin coatings on Si wafers have been used as a catalyst for synthesizing crystalline carbon nanotubes (CNTs), by CVD using ethylene as a carbon precursor.
