1 / 13

emperature rise with application of alternating

100. Glass-ceramic. Surface of tibia. 40. Glass-ceramic. Surface of tibia. 30. 0. 10. 20. T. ime / min. T. emperature rise with application of alternating. magnetic field. Pinning and hyperthermia treatment. No treatment. Effect of hyperthermia of cancer on bone tumor.

chaz
Download Presentation

emperature rise with application of alternating

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. 100 Glass-ceramic Surface of tibia 40 Glass-ceramic Surface of tibia 30 0 10 20 T ime / min T emperature rise with application of alternating magnetic field

  2. Pinning and hyperthermia treatment No treatment Effect of hyperthermia of cancer on bone tumor. (10 weeks after transplantation) (M. Ikenaga et al., J. Orthop. Res., 11 (1993) 849-81010)

  3. Alternating magnetic field Ferrimagnetic microspheres (20-30 mmf) Heat Microsphere Artery Catheter Tumor Alternating magnetic field Hyperthermia of cancer with ferrimagnetic microspheres.

  4. FE-SEM photographs of magnetite microspheres prepared by melting powders in high-frequency induction thermal plasma.

  5. Magnetite microspheres prepared by melting powders in high-frequency induction thermal plasma 20 10 Magnetite-containing glass-ceramic -300 -200 -100 0 100 200 300 -10 -20 Hysteresis loops under magnetic field up to 300 Oe of the microspheres prepared by melting powders in high-frequency induction thermal plasma, in comparison with that of magnetite-containing glass-ceramic.

  6. Stirring 1% HF Fe3O4 powder Fe3O4-saturated 1% HF solution (Fe-HF) Fe-HF(30ºC, 600 mL) Silica glass microspheres Silica glass microspheres(12.4 µmf, 0.710 g) Soaking in Fe-HF at 30ºC for various periods (i) Fe3+ fluoro complex + mH2O ß-FeOOH + nHF (ii) SiO2 + 6HF [SiF6]2- + 2H2O + 2H+ Soaking in Fe3O4-saturated 1% HF solution (Fe-HF) at 30ºC for various periods.

  7. : b-FeOOH : SiO2 (quartz) 24 d 18 d Intensity / arb. u. 12 d 6 d Before soaking 10 20 30 40 50 2 / degree Powder XRD patterns of silica glass microspheres soaked in Fe-HF solution at 30C for various periods.

  8. 70CO2+30H2 : Fe3O4 (Magnetite) : ß-FeOOH 600C 500C Intensity / arb. u. 400C 300C Before treatment 10 20 30 40 100 2 / degree Powder XRD patterns of ß-FeOOH-coated microspheres before and after heat treatment at various temperatures for 1 h in 70CO2+30H2 (mol%).

  9. 10µm 10µm 10µm 10µm 10µm 10µm 10µm 10µm 10µm 10µm FE-SEM photograph of a silica glass microsphere coated with magnetite by a precipitation from solution.

  10. Magnetite microspheres prepared by melting powders in high-frequency induction thermal plasma 20 Magnetite microspheres prepared by a precipitation from solution 10 Magnetite-containing glass-ceramic -300 -200 -100 0 100 200 300 -10 -20 Hysteresis loops under magnetic field up to 300 Oe of the microspheres prepared by melting powders in high-frequency induction thermal plasma and a precipitation from solution after the subsequent heat treatment, in comparison with that of magnetite-containing glass-ceramic.

  11. 100 nm 100 nm 100 nm 100 nm 100 nm 100 nm 100 nm 100 nm 100 nm TEM photograph of magnetite precipitated from solution onto the surface of silica glass microspheres.

More Related