化學與磁性 ( 磁性特性與應用 )
DESCRIPTION
化學與磁性 ( 磁性特性與應用 ). 磁性基本特性 磁性奈米線應用. 化碩一 杜怡君 R97223125. 磁性物質. 順磁性. 反鐵磁性. 反磁性. 陶鐵磁性. 鐵磁性. C. D. B. E. A. G. F. 磁滯曲線. 磁滯曲線. 磁滯曲線. 軟磁: 軟磁材料是指容易磁化與去磁的材料。因此材料的磁滯曲線必須很窄。 ( 磁滯損失 小、 渦流損失 小、 高導磁率 、 高飽和磁率 ) 硬磁: 硬磁材料在做過磁化處理後,磁性不易消失,可用來做為永久磁鐵使用。 ( 抗磁力 大 、殘存磁通密度 ). - PowerPoint PPT PresentationTRANSCRIPT
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R97223125*/65
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--- (magnetic anisotropy)
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()1898Poulsen
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CVD Ultrahigh Vacuum CVD, UHVCVDPlasma-Enhanced CVD, PECVDMetalorganic CVD, MOCVD */65
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CVD:
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thermodynamically stableisotropic :water-in-oil, W/Ooil-in-water, O/W
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: :C6 ~ C8:AOTCTABTriton X : HLB (hydrophilic-lipophilic balance
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R97223124*/65
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- (Sol-Gel) (sol) 1~100 nm (gel)
pH
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(Fe3O4 ) ( 80C 30 ) Fe 2+ +2Fe 3+ + 8OH- Fe3O4 +4H2O1:Fe3O4*/65
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(autoclave)
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(NaBH4 , NaBEt3H , LiBet3H) (N2H4 )*/65
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R97223202*/65
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Ochratoxin A (OTA)
J. Chromatography A. 2007, 1159,250255 */65
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Fe3O4@HSA */65
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Fe3O4 Fe3O4@EDAS */65
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Fe3O4@EDAS Fe3O4@HSA */65
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OTA :10-8M*/65
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0.1189 mg/L0.1385 mg/L0.16 mg/L0.09808 mg/LOTA2%32%14%18%*/65
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D97223133*/65
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(superparamagnetic iron oxide, SPIO)[1] (SPIO)
2-3-1 () (MRI) (ablation agent) () [1] Hartman, K. B.; Wilson, L. J.; Rosenblum, M. G. Molecular Diagnosis & Therapy, 2008, 12, 1.*/65
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2-3-2 [2] [2] Plank, C. Trends in Biotechnology, 2008, 26(2), 59.2-3-3 2-3-1 */65
CoatingspaceMetabolic timeanionHuman1 hrStarchHuman24-36 hrsStarchMice2-3 hrsSPIOsHuman7 days
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[1] [1] Jin, Z.; Hong, B.; Kakar, S. S.,Kang K. A. Advances in Experimental Medicine and Biology, 2008, 614, 275.2-3-4 (a)(b)0.1 wt(c)0.1 wt1 cmNIR-TRS788 nm100 M Hz2-3-5 --(a)(b)()(c) (hymatoxylin) (eosin)(d)(MRTI)abc*/65
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[1] [1] Tang, Q. S.; Zhang, D. S.; Cong, X. M.; Wan, M. L.; Jin, L. Q. Biomaterials, 2008, 29(17), 2673.2-3-6 -2-3-7 P1730OR ()-SMMC-7721 ()*/65
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MFeCoMnZn */65
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2003XLRMagnetic Ride Control*/65
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EuNbO2N
(Magnetoresponses) D97223103*/65
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Ferroelectric and Magnetic MaterialsYMnO3 EuNbO2N (a = 4.03215(2) , c = 4.04411(3) ) Perovskite */65
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ConclusionsEuNbO2N */65
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B95203052*/65
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MFe2O4 MOFe2O3*/65
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MFe12O19 MO6Fe2O3*/65
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Walkman B95203020*/65
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!!!MP3--
neodymiumgauss */65
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MP3??
AMFM??
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Thanks for your attention!*/65
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PECVD
FePtferrocene for Fe, (methylcyclopentadienyl)trimethyl platinum for Pt
Jpn. J. Appl. Phys. 2006, 45,83028307
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:: transmission electron microscope: magneto-optical Kerr effect: :
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Plasma discharge duration vs. particle size and densityTime density particle size
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Reaction time and temperature vs. hysteresis loopTime loop hard magnet Temperature loop hard magnet
30(a) 750, (b) 650, (c) 550
: (650)(a) 8, (b) 4, (c) 2*/65
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Angew. Chem. 2007, 46, 1222 1244 4~15 nmMnFe2O4
Mn(NO3)2 Fe(NO3)3 toluene()Surfactant: sodium dodecylbenzenesulfonate (NaDBS) toluene: /toluene = 5/100, ~8 nm particle
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4~15nm MnFe2O4 superparamagnetic
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