JP2004075530A - 無機コアを有するナノ粒子 - Google Patents
無機コアを有するナノ粒子 Download PDFInfo
- Publication number
- JP2004075530A JP2004075530A JP2003282298A JP2003282298A JP2004075530A JP 2004075530 A JP2004075530 A JP 2004075530A JP 2003282298 A JP2003282298 A JP 2003282298A JP 2003282298 A JP2003282298 A JP 2003282298A JP 2004075530 A JP2004075530 A JP 2004075530A
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- JP
- Japan
- Prior art keywords
- nanoparticles
- nanoparticle
- functional group
- inorganic
- inorganic core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 239000002105 nanoparticle Substances 0.000 title claims abstract description 97
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 55
- 125000000524 functional group Chemical group 0.000 claims abstract description 43
- 239000011248 coating agent Substances 0.000 claims abstract description 33
- 238000000576 coating method Methods 0.000 claims abstract description 33
- 230000003647 oxidation Effects 0.000 claims abstract description 28
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 28
- 239000000463 material Substances 0.000 claims abstract description 27
- 239000011029 spinel Substances 0.000 claims abstract description 26
- 229910052596 spinel Inorganic materials 0.000 claims abstract description 26
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract description 23
- 229910052742 iron Inorganic materials 0.000 claims abstract description 21
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 14
- 239000013078 crystal Substances 0.000 claims abstract description 13
- 229910052723 transition metal Inorganic materials 0.000 claims abstract description 10
- 239000002245 particle Substances 0.000 claims abstract description 9
- 150000003624 transition metals Chemical class 0.000 claims abstract description 9
- -1 cyclic ester Chemical class 0.000 claims description 19
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 18
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 14
- 229910052751 metal Inorganic materials 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 13
- 238000004132 cross linking Methods 0.000 claims description 11
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims description 10
- 150000002576 ketones Chemical class 0.000 claims description 10
- 150000001412 amines Chemical class 0.000 claims description 8
- 150000003573 thiols Chemical class 0.000 claims description 8
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 7
- 229910052688 Gadolinium Inorganic materials 0.000 claims description 7
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 7
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 7
- 229910052804 chromium Inorganic materials 0.000 claims description 7
- 239000011651 chromium Substances 0.000 claims description 7
- 229910017052 cobalt Inorganic materials 0.000 claims description 7
- 239000010941 cobalt Substances 0.000 claims description 7
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 7
- UIWYJDYFSGRHKR-UHFFFAOYSA-N gadolinium atom Chemical compound [Gd] UIWYJDYFSGRHKR-UHFFFAOYSA-N 0.000 claims description 7
- 239000003999 initiator Substances 0.000 claims description 7
- 230000000977 initiatory effect Effects 0.000 claims description 7
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 7
- 229910052750 molybdenum Inorganic materials 0.000 claims description 7
- 239000011733 molybdenum Substances 0.000 claims description 7
- 229910052759 nickel Inorganic materials 0.000 claims description 7
- 229910052720 vanadium Inorganic materials 0.000 claims description 7
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 claims description 7
- 229910052727 yttrium Inorganic materials 0.000 claims description 7
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 claims description 7
- 229910052725 zinc Inorganic materials 0.000 claims description 7
- 239000011701 zinc Substances 0.000 claims description 7
- 150000001350 alkyl halides Chemical class 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 5
- 229910052793 cadmium Inorganic materials 0.000 claims description 5
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 claims description 5
- 150000007942 carboxylates Chemical class 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 229910010272 inorganic material Inorganic materials 0.000 claims description 5
- 239000011147 inorganic material Substances 0.000 claims description 5
- 150000002978 peroxides Chemical class 0.000 claims description 5
- 229910052719 titanium Inorganic materials 0.000 claims description 5
- 239000010936 titanium Substances 0.000 claims description 5
- 150000001502 aryl halides Chemical class 0.000 claims description 4
- NOWKCMXCCJGMRR-UHFFFAOYSA-N Aziridine Chemical compound C1CN1 NOWKCMXCCJGMRR-UHFFFAOYSA-N 0.000 claims description 3
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 claims description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 3
- 229920006397 acrylic thermoplastic Polymers 0.000 claims description 3
- 150000001299 aldehydes Chemical class 0.000 claims description 3
- 150000001336 alkenes Chemical class 0.000 claims description 3
- 150000001345 alkine derivatives Chemical class 0.000 claims description 3
- 150000001735 carboxylic acids Chemical class 0.000 claims description 3
- 150000001869 cobalt compounds Chemical class 0.000 claims description 3
- 239000002178 crystalline material Substances 0.000 claims description 3
- 150000003950 cyclic amides Chemical class 0.000 claims description 3
- 150000004292 cyclic ethers Chemical class 0.000 claims description 3
- 150000002118 epoxides Chemical class 0.000 claims description 3
- 125000005283 haloketone group Chemical group 0.000 claims description 3
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 3
- 150000003440 styrenes Chemical class 0.000 claims description 3
- ISXSCDLOGDJUNJ-UHFFFAOYSA-N tert-butyl prop-2-enoate Chemical compound CC(C)(C)OC(=O)C=C ISXSCDLOGDJUNJ-UHFFFAOYSA-N 0.000 claims description 3
- 125000002813 thiocarbonyl group Chemical group *C(*)=S 0.000 claims description 3
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 3
- 229920002554 vinyl polymer Polymers 0.000 claims description 3
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims description 2
- 230000002209 hydrophobic effect Effects 0.000 claims description 2
- ACVYVLVWPXVTIT-UHFFFAOYSA-M phosphinate Chemical compound [O-][PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-M 0.000 claims description 2
- UEZVMMHDMIWARA-UHFFFAOYSA-M phosphonate Chemical compound [O-]P(=O)=O UEZVMMHDMIWARA-UHFFFAOYSA-M 0.000 claims description 2
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 2
- 239000004094 surface-active agent Substances 0.000 description 43
- 239000007800 oxidant agent Substances 0.000 description 22
- 239000011541 reaction mixture Substances 0.000 description 21
- 238000000034 method Methods 0.000 description 16
- 150000002902 organometallic compounds Chemical class 0.000 description 15
- 239000000010 aprotic solvent Substances 0.000 description 13
- 239000003960 organic solvent Substances 0.000 description 13
- 229940087654 iron carbonyl Drugs 0.000 description 12
- 239000003446 ligand Substances 0.000 description 11
- 239000000203 mixture Substances 0.000 description 11
- 239000002159 nanocrystal Substances 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 9
- 239000003880 polar aprotic solvent Substances 0.000 description 9
- 238000010992 reflux Methods 0.000 description 9
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 8
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 8
- 239000000843 powder Substances 0.000 description 8
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 7
- 239000012298 atmosphere Substances 0.000 description 7
- 150000003623 transition metal compounds Chemical class 0.000 description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 6
- 238000002056 X-ray absorption spectroscopy Methods 0.000 description 6
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 6
- DCAYPVUWAIABOU-UHFFFAOYSA-N hexadecane Chemical compound CCCCCCCCCCCCCCCC DCAYPVUWAIABOU-UHFFFAOYSA-N 0.000 description 6
- 239000002244 precipitate Substances 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- ZUHZGEOKBKGPSW-UHFFFAOYSA-N tetraglyme Chemical compound COCCOCCOCCOCCOC ZUHZGEOKBKGPSW-UHFFFAOYSA-N 0.000 description 6
- 229910003321 CoFe Inorganic materials 0.000 description 5
- 230000001590 oxidative effect Effects 0.000 description 5
- 238000001556 precipitation Methods 0.000 description 5
- UYPYRKYUKCHHIB-UHFFFAOYSA-N trimethylamine N-oxide Chemical group C[N+](C)(C)[O-] UYPYRKYUKCHHIB-UHFFFAOYSA-N 0.000 description 5
- NKJOXAZJBOMXID-UHFFFAOYSA-N 1,1'-Oxybisoctane Chemical compound CCCCCCCCOCCCCCCCC NKJOXAZJBOMXID-UHFFFAOYSA-N 0.000 description 4
- 230000002776 aggregation Effects 0.000 description 4
- 150000001298 alcohols Chemical class 0.000 description 4
- 229910001566 austenite Inorganic materials 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- BXCQGSQPWPGFIV-UHFFFAOYSA-N carbon monoxide;cobalt;cobalt(2+);methanone Chemical compound [Co].[Co+2].O=[CH-].O=[CH-].[O+]#[C-].[O+]#[C-].[O+]#[C-].[O+]#[C-].[O+]#[C-].[O+]#[C-] BXCQGSQPWPGFIV-UHFFFAOYSA-N 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- QFEOTYVTTQCYAZ-UHFFFAOYSA-N dimanganese decacarbonyl Chemical compound [Mn].[Mn].[O+]#[C-].[O+]#[C-].[O+]#[C-].[O+]#[C-].[O+]#[C-].[O+]#[C-].[O+]#[C-].[O+]#[C-].[O+]#[C-].[O+]#[C-] QFEOTYVTTQCYAZ-UHFFFAOYSA-N 0.000 description 4
- 238000003384 imaging method Methods 0.000 description 4
- 239000011261 inert gas Substances 0.000 description 4
- 150000002506 iron compounds Chemical class 0.000 description 4
- 238000001000 micrograph Methods 0.000 description 4
- 229940031182 nanoparticles iron oxide Drugs 0.000 description 4
- XYFCBTPGUUZFHI-UHFFFAOYSA-N phosphine group Chemical group P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 description 4
- 238000004098 selected area electron diffraction Methods 0.000 description 4
- 150000003512 tertiary amines Chemical class 0.000 description 4
- 239000005639 Lauric acid Substances 0.000 description 3
- 238000003917 TEM image Methods 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 238000004220 aggregation Methods 0.000 description 3
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 3
- 238000005119 centrifugation Methods 0.000 description 3
- QRXDDLFGCDQOTA-UHFFFAOYSA-N cobalt(2+) iron(2+) oxygen(2-) Chemical compound [O-2].[Fe+2].[Co+2].[O-2] QRXDDLFGCDQOTA-UHFFFAOYSA-N 0.000 description 3
- 125000000058 cyclopentadienyl group Chemical group C1(=CC=CC1)* 0.000 description 3
- 238000000921 elemental analysis Methods 0.000 description 3
- CUSDLVIPMHDAFT-UHFFFAOYSA-N iron(3+);manganese(2+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[Mn+2].[Fe+3].[Fe+3] CUSDLVIPMHDAFT-UHFFFAOYSA-N 0.000 description 3
- 238000003921 particle size analysis Methods 0.000 description 3
- 125000002097 pentamethylcyclopentadienyl group Chemical group 0.000 description 3
- 238000004627 transmission electron microscopy Methods 0.000 description 3
- FRPZMMHWLSIFAZ-UHFFFAOYSA-N 10-undecenoic acid Chemical compound OC(=O)CCCCCCCCC=C FRPZMMHWLSIFAZ-UHFFFAOYSA-N 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- FQMNUIZEFUVPNU-UHFFFAOYSA-N cobalt iron Chemical compound [Fe].[Co].[Co] FQMNUIZEFUVPNU-UHFFFAOYSA-N 0.000 description 2
- 239000002182 crystalline inorganic material Substances 0.000 description 2
- 229910001882 dioxygen Inorganic materials 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- XTAZYLNFDRKIHJ-UHFFFAOYSA-N n,n-dioctyloctan-1-amine Chemical compound CCCCCCCCN(CCCCCCCC)CCCCCCCC XTAZYLNFDRKIHJ-UHFFFAOYSA-N 0.000 description 2
- 239000001272 nitrous oxide Substances 0.000 description 2
- 125000002524 organometallic group Chemical group 0.000 description 2
- 150000004965 peroxy acids Chemical class 0.000 description 2
- 230000001376 precipitating effect Effects 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000004931 aggregating effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- KHAVLLBUVKBTBG-UHFFFAOYSA-N caproleic acid Natural products OC(=O)CCCCCCCC=C KHAVLLBUVKBTBG-UHFFFAOYSA-N 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000002872 contrast media Substances 0.000 description 1
- 238000010908 decantation Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000012377 drug delivery Methods 0.000 description 1
- ZSWFCLXCOIISFI-UHFFFAOYSA-N endo-cyclopentadiene Natural products C1C=CC=C1 ZSWFCLXCOIISFI-UHFFFAOYSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000002122 magnetic nanoparticle Substances 0.000 description 1
- 238000002595 magnetic resonance imaging Methods 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 229910000073 phosphorus hydride Inorganic materials 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- 150000007944 thiolates Chemical class 0.000 description 1
- 229910000314 transition metal oxide Inorganic materials 0.000 description 1
- 229960002703 undecylenic acid Drugs 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/0018—Mixed oxides or hydroxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y25/00—Nanomagnetism, e.g. magnetoimpedance, anisotropic magnetoresistance, giant magnetoresistance or tunneling magnetoresistance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/0018—Mixed oxides or hydroxides
- C01G49/0072—Mixed oxides or hydroxides containing manganese
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/02—Oxides; Hydroxides
- C01G49/06—Ferric oxide [Fe2O3]
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/02—Oxides; Hydroxides
- C01G49/08—Ferroso-ferric oxide [Fe3O4]
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G51/00—Compounds of cobalt
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/22—Compounds of iron
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/22—Compounds of iron
- C09C1/24—Oxides of iron
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/08—Treatment with low-molecular-weight non-polymer organic compounds
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/0036—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties showing low dimensional magnetism, i.e. spin rearrangements due to a restriction of dimensions, e.g. showing giant magnetoresistivity
- H01F1/0045—Zero dimensional, e.g. nanoparticles, soft nanoparticles for medical/biological use
- H01F1/0054—Coated nanoparticles, e.g. nanoparticles coated with organic surfactant
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
- H01F1/20—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder
- H01F1/22—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together
- H01F1/24—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated
- H01F1/26—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated by macromolecular organic substances
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/34—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites
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Abstract
【解決手段】 本発明の態様の1つはナノ粒子を提供することである。このナノ粒子は、実質的に結晶性でありかつ約1nm〜約1000nmの範囲の直径を有する無機コア(12)と、該無機コアを実質的に覆っており、少なくとも1つの官能基を有するイオン性安定化材料を含んだ少なくとも1つの外側コーティングと、を備える。第2の態様においては、無機ナノ粒子が提供され、この無機ナノ粒子は、直径が1〜1000nmの範囲にあると共に、第1の酸化状態にある鉄及び該第1の酸化状態と異なる第2の酸化状態にある遷移金属を含む少なくとも1つのスピネルフェライトからなる単結晶を備えている。
【選択図】 図1
Description
トリメチルアミン−N−オキシド(7.59ミリモル(mmol))、ラウリン酸(4.54mmol)及び10mlの脱酸素化ヘキサデカンをそれぞれ個々に脱水させた混合物をグローブボックス内で不活性雰囲気下で50mlの2枝Schlenkフラスコに加えた。このフラスコはSchlenk真空に取り付け、また柱状還流冷却器アセンブリをN2ブランケット下に取り付けた。この混合物は活発に撹拌して均一化し約100°Cまで加熱した。
トリメチルアミン−N−オキシド(7.60mmol)、ラウリン酸(4.56mmol)及び7mlの脱酸素化ジオクチルエーテルをそれぞれ個々に脱水させた混合物をグローブボックス内で不活性雰囲気下で50mlの2枝Schlenkフラスコに加えた。このフラスコはSchlenk真空ラインに取り付け、また柱状還流冷却器アセンブリをN2ブランケット下に取り付けた。この混合物は活発に撹拌して均一化し約100°Cまで加熱した。
トリメチルアミン−N−オキシド(7.60mmol)、10−ウンデセン酸またはラウリン酸(4.56mmol)及び7mlの脱酸素化ジオクチルエーテルをそれぞれ個々に脱水させかつ脱酸素化させた混合物を不活性雰囲気下で50mlの2枝Schlenkフラスコに加えた。このフラスコはSchlenk真空ラインに取り付け、また柱状還流冷却器アセンブリをN2ブランケット下に取り付けた。この混合物は活発に撹拌して均一化し約100°Cまで加熱した。
12 無機コア
14 外側コーティング
15 イオン性安定化材料
16 イオン性ヘッド部
17 尾部の内部部分
18 尾部
19 尾部の終端部分
Claims (37)
- a)第1の無機材料を含み、実質的に結晶性であり、かつ約1nm〜約1000nmの範囲の直径を有する無機コア(12)と、
b)前記無機コア(12)を実質的に覆っている、少なくとも1つの官能基を有する少なくとも1つのイオン性安定化材料(15)を含む少なくとも1つの外側コーティング(14)と、
を備えるナノ粒子(10)。 - a)1〜1000nmの範囲の直径を有すると共に、第1の酸化状態にある鉄及び該第1の酸化状態と異なる第2の酸化状態にある少なくとも1つの金属を含んだ少なくとも1つのスピネルフェライトの単結晶を含む無機コア(12)と、
b)前記無機コア(12)を実質的に覆っている、少なくとも1つの官能基を有する少なくとも1つのイオン性安定化材料(15)を含む少なくとも1つの外側コーティング(14)と、
を備えるナノ粒子(10)。 - 前記イオン性安定化材料(15)が、前記コア(12)の表面と結合した少なくとも1つのイオン性ヘッド部(16)と、前記少なくとも1つのイオン性ヘッド部(16)と結合しており前記表面と反対側で前記少なくとも1つのイオン性ヘッド部(16)から延びる少なくとも1つの尾部18と、を備えると共に、前記少なくとも1つの官能基が前記尾部18内に配置されている、請求項32に記載のナノ粒子(10)。
- 前記無機コア(12)の少なくとも約50%が結晶性材料を含む、請求項1に記載のナノ粒子(10)。
- 前記無機コア(12)の少なくとも約75%が結晶性材料を含む、請求項4に記載のナノ粒子(10)。
- 前記無機コア(12)が単結晶である、請求項5に記載のナノ粒子(10)。
- 前記無機コア(12)が超常磁性材料を含む、請求項1乃至3のいずれかに記載のナノ粒子(10)。
- 前記無機コア(12)が、第1の酸化状態にある鉄及び該第1の酸化状態と異なる第2の酸化状態にある少なくとも1つの金属を含んだ少なくとも1つのスピネルフェライトを含む、請求項1または2に記載のナノ粒子(10)。
- 前記少なくとも1つの金属が、鉄、マンガン、銅、チタン、カドミウム、コバルト、ニッケル、クロム、ガドリニウム、イットリウム、亜鉛、モリブデン及びバナジウムのうちの少なくとも1つを含む、請求項8に記載のナノ粒子(10)。
- 前記無機コア(12)の形状が球形である、請求項1または2に記載のナノ粒子(10)。
- 前記無機コア(12)が約1nm〜約100nmの範囲の直径を有する、請求項1または2に記載のナノ粒子(10)。
- 前記無機コア(12)が約1nm〜約10nmの範囲の直径を有する、請求項9に記載のナノ粒子(10)。
- 前記外側コーティング(14)が該ナノ粒子(10)を安定化するのに十分な厚さを有する、請求項1または2に記載のナノ粒子(10)。
- 前記厚さが約1nm〜約50nmの範囲にある、請求項13に記載のナノ粒子(10)。
- 前記厚さが約1.5nm〜約3nmの範囲にある、請求項14に記載のナノ粒子(10)。
- 前記イオン性安定化材料(15)がシロキサンを含む、請求項1または2に記載のナノ粒子(10)。
- 前記イオン性安定化材料(15)が、前記コア(12)の表面と結合した少なくとも1つのイオン性ヘッド部(16)と、該少なくとも1つのイオン性ヘッド部(16)と結合しており前記表面と反対側で該少なくとも1つのイオン性ヘッド部(16)から延びる少なくとも1つの尾部18と、を備えると共に、前記少なくとも1つの官能基が前記尾部18内に配置されている、請求項1に記載のナノ粒子(10)。
- 前記少なくとも1つの官能基が前記少なくとも1つの尾部18の内部部分(17)と終端部分(19)のうちの一方に配置されている、請求項3または17に記載のナノ粒子(10)。
- 前記少なくとも1つの官能基が前記終端部分(19)内に配置されている、請求項18に記載のナノ粒子(10)。
- 前記終端部分(19)が疎水性である、請求項18に記載のナノ粒子(10)。
- 前記少なくとも1つの官能基が、重合性官能基、開始性官能基及び架橋官能基のうちの1つである、請求項17または19に記載のナノ粒子(10)。
- 前記重合性官能基が、アルケン、アルキン、ビニル(アクリル類及びスチレン類を含む)、エポキシド、アジリジン、環状エーテル、環状エステル及び環状アミドのうちの少なくとも1つを含む、請求項21に記載のナノ粒子(10)。
- 前記開始性官能基が熱開始剤と光開始剤の少なくとも一方を含む、請求項21に記載のナノ粒子(10)。
- 前記開始性官能基が、アゾ化合物、水酸化物、過酸化物、ハロゲン化アルキル、ハロゲン化アリール、ハロケトン、ハロエステル、ハロアミド、窒素酸化物、チオカルボニル、チオール、有機コバルト化合物、ケトン及びアミンのうちの少なくとも1つを含む、請求項21に記載のナノ粒子(10)。
- 前記架橋官能基が、チオール、アルデヒド、ケトン、水酸化物、イソシアニド、ハロゲン化アルキル、カルボキシレート、カルボン酸、フェノール、アミン、並びにこれらの組み合わせのうちの少なくとも1つを含む、請求項21に記載のナノ粒子(10)。
- 前記イオン性ヘッド部(16)が、アルコール、チオール、アミン、有機カルボキシレート、有機スルホナート、有機ホスホネート及び有機ホスフィネートのうちの少なくとも1つを含む、請求項3または17に記載のナノ粒子(10)。
- 前記無機コア(12)が元素形態の鉄を含む、請求項1に記載のナノ粒子(10)。
- 前記少なくとも1つの遷移金属が、鉄、マンガン、コバルト、カドミウム、ニッケル、クロム、ガドリニウム、イットリウム、亜鉛、モリブデン及びバナジウムのうちの少なくとも1つを含む、請求項7に記載のナノ粒子(10)。
- 1〜1000nmの範囲の直径を有すると共に、第1の酸化状態にある鉄及び該第1の酸化状態と異なる第2の酸化状態にある少なくとも1つの金属を含んだ少なくとも1つのスピネルフェライトの単結晶を含む無機ナノ粒子(10)。
- 球形の形状を有する請求項29に記載の無機ナノ粒子(10)。
- 約1nm〜約100nmの範囲の直径を有する請求項30に記載の無機ナノ粒子(10)。
- 約1nm〜約10nmの範囲の直径を有する請求項31に記載の無機ナノ粒子(10)。
- 前記少なくとも1つの金属が、マンガン、銅、チタン、カドミウム、コバルト、ニッケル、クロム、ガドリニウム、イットリウム、亜鉛、モリブデン及びバナジウムのうちの少なくとも1つを含む、請求項29に記載の無機ナノ粒子(10)。
- 複数のナノ粒子(10)であって、その各々が、
a)第1の無機材料を含み、実質的に結晶性であり、かつ約1nm〜約1000nmの範囲の直径を有する無機コア(12)と、
b)前記無機コア(12)を実質的に覆っている、少なくとも1つの官能基を有する少なくとも1つのイオン性安定化材料(15)を含む少なくとも1つの外側コーティング(14)と、
を備えており、実質的に単分散性である複数のナノ粒子(10)。 - 前記無機コア(12)が超常磁性材料を含む、請求項34に記載の複数ナノ粒子(10)。
- 前記無機コア(12)が、第1の酸化状態にある鉄及び該第1の酸化状態と異なる第2の酸化状態にある少なくとも1つの金属を含んだ少なくとも1つのスピネルフェライトを含む、請求項34に記載の複数ナノ粒子(10)。
- 前記少なくとも1つの金属が、鉄、カドミウム、マンガン、コバルト、ニッケル、クロム、ガドリニウム、イットリウム、亜鉛、モリブデン及びバナジウムのうちの少なくとも1つを含む、請求項36に記載の複数ナノ粒子(10)。
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CN101765562B (zh) * | 2007-07-26 | 2013-05-29 | 国立大学法人东京工业大学 | 表面被覆无机物粒子的制造方法 |
JP5569837B2 (ja) * | 2007-07-26 | 2014-08-13 | 国立大学法人東京工業大学 | 表面被覆無機物粒子の製造方法 |
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KR101686339B1 (ko) * | 2015-07-21 | 2016-12-13 | 건양대학교산학협력단 | 열분해법을 이용한 자성나노입자의 제조방법 |
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CN100402468C (zh) | 2008-07-16 |
JP4713067B2 (ja) | 2011-06-29 |
NO20033409D0 (no) | 2003-07-30 |
US6797380B2 (en) | 2004-09-28 |
US20040023030A1 (en) | 2004-02-05 |
EP1386886A1 (en) | 2004-02-04 |
CN1475459A (zh) | 2004-02-18 |
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