Fe3O4 magnetic nanoparticles with diameters varying from 10 to 426 nm were synthesized and characterized.Heating effects of Fe3O4 magnetic nanoparticles under radiofrequency capacitive field(RCF) with frequency of 27....Fe3O4 magnetic nanoparticles with diameters varying from 10 to 426 nm were synthesized and characterized.Heating effects of Fe3O4 magnetic nanoparticles under radiofrequency capacitive field(RCF) with frequency of 27.12 MHz and power of 60-150 W were investigated.When the power of RCF is lower than 90 W,temperatures of Fe3O4 magnetic nanoparticles(75-150 mg/mL) can be raised and maximal temperatures are all lower than 50 ℃.When the power of RCF is 90-150 W,temperatures of Fe3O4 magnetic nanoparticles can be quickly raised and are all obviously higher than those of normal saline and distilled water under the same conditions.Temperature of Fe3O4 magnetic nanoparticles can even reach 70.2 ℃ under 150 W RCF.Heating effects of Fe3O4 magnetic nanoparticles are related to RCF power,particle size and particle concentration.展开更多
The compounds of O-(thiaxanthon-2-yl)-oxyacetate,was synthesized from 2,2’-Dithiosalicylic acid.The compound was identified by elemental analysis,IR,1H NMR,13CNMR spectrum.The effect of ratio of starting materias,tem...The compounds of O-(thiaxanthon-2-yl)-oxyacetate,was synthesized from 2,2’-Dithiosalicylic acid.The compound was identified by elemental analysis,IR,1H NMR,13CNMR spectrum.The effect of ratio of starting materias,temperature,time on yield were explored,and the synthetic condition was optimized by high efficiency liquid chromatography.This method is more suitable for the industrial production.展开更多
基金Projects(30571779,10775085) supported by the National Natural Science Foundation of ChinaProject(Z07000200540704) supported by Beijing Municipal Science and Technology Commission,China
文摘Fe3O4 magnetic nanoparticles with diameters varying from 10 to 426 nm were synthesized and characterized.Heating effects of Fe3O4 magnetic nanoparticles under radiofrequency capacitive field(RCF) with frequency of 27.12 MHz and power of 60-150 W were investigated.When the power of RCF is lower than 90 W,temperatures of Fe3O4 magnetic nanoparticles(75-150 mg/mL) can be raised and maximal temperatures are all lower than 50 ℃.When the power of RCF is 90-150 W,temperatures of Fe3O4 magnetic nanoparticles can be quickly raised and are all obviously higher than those of normal saline and distilled water under the same conditions.Temperature of Fe3O4 magnetic nanoparticles can even reach 70.2 ℃ under 150 W RCF.Heating effects of Fe3O4 magnetic nanoparticles are related to RCF power,particle size and particle concentration.
文摘The compounds of O-(thiaxanthon-2-yl)-oxyacetate,was synthesized from 2,2’-Dithiosalicylic acid.The compound was identified by elemental analysis,IR,1H NMR,13CNMR spectrum.The effect of ratio of starting materias,temperature,time on yield were explored,and the synthetic condition was optimized by high efficiency liquid chromatography.This method is more suitable for the industrial production.
