JPWO2007097404A1 - 糖修飾粒子およびその製造方法 - Google Patents
糖修飾粒子およびその製造方法 Download PDFInfo
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- JPWO2007097404A1 JPWO2007097404A1 JP2008501756A JP2008501756A JPWO2007097404A1 JP WO2007097404 A1 JPWO2007097404 A1 JP WO2007097404A1 JP 2008501756 A JP2008501756 A JP 2008501756A JP 2008501756 A JP2008501756 A JP 2008501756A JP WO2007097404 A1 JPWO2007097404 A1 JP WO2007097404A1
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- sugar
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- WYFCZWSWFGJODV-MIANJLSGSA-N 4-[[(1s)-2-[(e)-3-[3-chloro-2-fluoro-6-(tetrazol-1-yl)phenyl]prop-2-enoyl]-5-(4-methyl-2-oxopiperazin-1-yl)-3,4-dihydro-1h-isoquinoline-1-carbonyl]amino]benzoic acid Chemical compound O=C1CN(C)CCN1C1=CC=CC2=C1CCN(C(=O)\C=C\C=1C(=CC=C(Cl)C=1F)N1N=NN=C1)[C@@H]2C(=O)NC1=CC=C(C(O)=O)C=C1 WYFCZWSWFGJODV-MIANJLSGSA-N 0.000 description 1
- ROFVEXUMMXZLPA-UHFFFAOYSA-N Bipyridyl Chemical group N1=CC=CC=C1C1=CC=CC=N1 ROFVEXUMMXZLPA-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 241000725619 Dengue virus Species 0.000 description 1
- 241000282326 Felis catus Species 0.000 description 1
- OPFJDXRVMFKJJO-ZHHKINOHSA-N N-{[3-(2-benzamido-4-methyl-1,3-thiazol-5-yl)-pyrazol-5-yl]carbonyl}-G-dR-G-dD-dD-dD-NH2 Chemical compound S1C(C=2NN=C(C=2)C(=O)NCC(=O)N[C@H](CCCN=C(N)N)C(=O)NCC(=O)N[C@H](CC(O)=O)C(=O)N[C@H](CC(O)=O)C(=O)N[C@H](CC(O)=O)C(N)=O)=C(C)N=C1NC(=O)C1=CC=CC=C1 OPFJDXRVMFKJJO-ZHHKINOHSA-N 0.000 description 1
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- 206010037660 Pyrexia Diseases 0.000 description 1
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- 244000061458 Solanum melongena Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000000862 absorption spectrum Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
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- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
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- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
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- 238000007796 conventional method Methods 0.000 description 1
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- 125000005594 diketone group Chemical group 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- CWAFVXWRGIEBPL-UHFFFAOYSA-N ethoxysilane Chemical compound CCO[SiH3] CWAFVXWRGIEBPL-UHFFFAOYSA-N 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000007850 fluorescent dye Substances 0.000 description 1
- 238000001215 fluorescent labelling Methods 0.000 description 1
- 238000004108 freeze drying Methods 0.000 description 1
- 238000007306 functionalization reaction Methods 0.000 description 1
- 239000007863 gel particle Substances 0.000 description 1
- JAXFJECJQZDFJS-XHEPKHHKSA-N gtpl8555 Chemical compound OC(=O)C[C@H](N)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](C(C)C)C(=O)N1CCC[C@@H]1C(=O)N[C@H](B1O[C@@]2(C)[C@H]3C[C@H](C3(C)C)C[C@H]2O1)CCC1=CC=C(F)C=C1 JAXFJECJQZDFJS-XHEPKHHKSA-N 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 239000005457 ice water Substances 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- ZLVXBBHTMQJRSX-VMGNSXQWSA-N jdtic Chemical compound C1([C@]2(C)CCN(C[C@@H]2C)C[C@H](C(C)C)NC(=O)[C@@H]2NCC3=CC(O)=CC=C3C2)=CC=CC(O)=C1 ZLVXBBHTMQJRSX-VMGNSXQWSA-N 0.000 description 1
- IEQCXFNWPAHHQR-UHFFFAOYSA-N lacto-N-neotetraose Natural products OCC1OC(OC2C(C(OC3C(OC(O)C(O)C3O)CO)OC(CO)C2O)O)C(NC(=O)C)C(O)C1OC1OC(CO)C(O)C(O)C1O IEQCXFNWPAHHQR-UHFFFAOYSA-N 0.000 description 1
- 229940062780 lacto-n-neotetraose Drugs 0.000 description 1
- 239000003446 ligand Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 description 1
- BFXIKLCIZHOAAZ-UHFFFAOYSA-N methyltrimethoxysilane Chemical compound CO[Si](C)(OC)OC BFXIKLCIZHOAAZ-UHFFFAOYSA-N 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- XNLBCXGRQWUJLU-UHFFFAOYSA-N naphthalene-2-carbonyl chloride Chemical compound C1=CC=CC2=CC(C(=O)Cl)=CC=C21 XNLBCXGRQWUJLU-UHFFFAOYSA-N 0.000 description 1
- RBMYDHMFFAVMMM-PLQWBNBWSA-N neolactotetraose Chemical compound O([C@H]1[C@H](O)[C@H]([C@@H](O[C@@H]1CO)O[C@@H]1[C@H]([C@H](O[C@H]([C@H](O)CO)[C@H](O)[C@@H](O)C=O)O[C@H](CO)[C@@H]1O)O)NC(=O)C)[C@@H]1O[C@H](CO)[C@H](O)[C@H](O)[C@H]1O RBMYDHMFFAVMMM-PLQWBNBWSA-N 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical class O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 150000008163 sugars Chemical class 0.000 description 1
- 239000010414 supernatant solution Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- WHRNULOCNSKMGB-UHFFFAOYSA-N tetrahydrofuran thf Chemical compound C1CCOC1.C1CCOC1 WHRNULOCNSKMGB-UHFFFAOYSA-N 0.000 description 1
- 125000005369 trialkoxysilyl group Chemical group 0.000 description 1
- CPUDPFPXCZDNGI-UHFFFAOYSA-N triethoxy(methyl)silane Chemical compound CCO[Si](C)(OCC)OCC CPUDPFPXCZDNGI-UHFFFAOYSA-N 0.000 description 1
- JCVQKRGIASEUKR-UHFFFAOYSA-N triethoxy(phenyl)silane Chemical compound CCO[Si](OCC)(OCC)C1=CC=CC=C1 JCVQKRGIASEUKR-UHFFFAOYSA-N 0.000 description 1
- ZNOCGWVLWPVKAO-UHFFFAOYSA-N trimethoxy(phenyl)silane Chemical compound CO[Si](OC)(OC)C1=CC=CC=C1 ZNOCGWVLWPVKAO-UHFFFAOYSA-N 0.000 description 1
- 150000004043 trisaccharides Chemical class 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/02—Use of particular materials as binders, particle coatings or suspension media therefor
- C09K11/025—Use of particular materials as binders, particle coatings or suspension media therefor non-luminescent particle coatings or suspension media
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H23/00—Compounds containing boron, silicon, or a metal, e.g. chelates, vitamin B12
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/06—Luminescent, e.g. electroluminescent, chemiluminescent materials containing organic luminescent materials
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Abstract
Description
[1]下記一般式(1-1)〜(1-7)で示されるクロルシラン化糖化合物。
[2]下記一般式(2-1)〜(2-7)で示されるアルコキシシラン化糖化合物。
[3]保護基がアセチル基またはNpOC(Npはナフトイル基)である[1]または[2]に記載の化合物。
[4][2]に記載された一般式(2-1)〜(2-7)で示されるアルコキシシラン化糖化合物と発光性物質および/または粒子状物質とを含む複合体。
[5]下記(3-1)〜(3-7)で示されるアルコキシシラン化糖化合物と発光性物質および/または粒子状物質とを含む複合体。
[6]発光性物質が金属錯体または有機色素である[4]または[5]に記載の複合体。
[7]金属錯体の中心金属がRu(ルテニウム)、Eu(ユーロピウム)、Tb(テルビウム)、Tm(ツリウム)、Yb(イッテルビウム)、またはCd/Se(カドミウム/セレン)である[6]に記載の複合体。
[8]有機色素がブロモピロガロールレッドまたはピロカテコールバイオレットである[6]に記載の複合体。
[9]粒子状物質が、磁性物質、金属、およびゾルゲル物質から成る群から選ばれる少なくとも1種の物質である[4]〜[8]のいずれか1項に記載の複合体。
[10]粒子状物質が、ゾルゲル物質で表面被覆された発光性物質、磁性物質および/または金属である[4]〜[8]のいずれかに記載の複合体。
[11]ゾルゲル物質がテトラアルコキシシランおよび/またはトリアルコキシシランの加水分解物である[9]または[10]に記載の複合体。
[12]アルコキシラン化糖化合物と発光性物質および/または粒子状物質との質量比が99.99〜95:0.01〜5の範囲である[4]〜[11]のいずれかに記載の複合体。
[13]複合体の平均粒子径は50nm〜500μmの範囲である[4]〜[12]のいずれかに記載の複合体。
[14][2]に記載された一般式(2-1)〜(2-7)で示されるアルコキシラン化糖化合物と発光性物質および/または粒子状物質とを疎水性溶媒中で反応させることで、一般式(2-1)〜(2-7)で示されるアルコキシラン化糖化合物と発光性物質および/または粒子状物質とを含む複合体を得る、[4]に記載の複合体の製造方法。
[15]テトラアルコキシシランおよび/またはトリアルコキシシランを、前記アルコキシラン化糖化合物と同時に、または前後して、発光性物質および/または粒子状物質と反応させる[14]に記載の複合体の製造方法。
[16][14]または[15]の製造方法で得られた複合体から、糖の保護基を脱離させることを含む、[5]に記載の複合体の製造方法。
Ac アセチル
Et エチル
Me メチル
Np ナフトイル
Rubpy トリス(2, 2'-ビピリジル)ジクロロルテニウム(II)6水和物
TEOS テトラエチルオルソシリケート
THF テトラヒドロフラン
cat Pt H2PtCl6・6H2O
HEPES 2-[4-(2-ヒドロキシエチル)-1-ピペラジニル]エタンスルホン酸
ラクトース誘導体の合成法
Trimethoxysilylpentenyl O-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-(1→4)-2,3,6- tri-O-acetyl-α-D-glucopyranoside(3)の合成
1H-NMR (CDCl3, 200 MHz) δ:5.34 (d, 1H, J=2.6 Hz, H-4'), 5.19 (t, 1H, J=9.2 Hz , H-3), 5.09-5.13 (m, 1H, H-2), 4.94-4.98 (m, 6H, H-3'), 4.87 (t, 1H, J=8 Hz, H-2), 4.44-4.49 (m, 3H, H-1',H-6a), 4.06-4.16 (m, 3H, H-6'ab, H-6b), 3.73-3.81 (m, 9H, H-5', H-4), 3.57-3.62 (m, 1H, H-5), 3.52 (s, 6H, Si-O-CH3), 1.93-2.11 (several s, 21H, Ac), 1.4-1.7 (m, 4H, OCH2CH2), 0.5-0.6 (m, 2H, Si-CH2)
IR(KRS5);ν 2940, 1750 (Ac,C=O), 1370, 1225, 1055 (Si-O)
Triethoxysilylpentenyl O-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-(1→4)-2,3,6- tri-O-acetyl-α-D-glucopyranoside(4)の合成
1H-NMR (CDCl3, 200 MHz) δ:5.34 (d, 1H, J=2.6 Hz, H-4'), 5.19 (t, 1H, J=9.2 Hz, H-3), 5.09-5.13 (m, 1H, H-2), 4.94-4.98 (m, 6H, H-3'), 4.87 (t, 1H, J=8 Hz H-2), 4.44-4.49 (m, 3H, H-1',H-6a), 4.06-4.16 (m, 3H, H-6'ab, H-6b), 3.73-3.81 (m, 8H, H-5', H-4, SiOCH2CH3), 3.57-3.62 (m, 1H, H-5), 1.93-2.11 (several s, 21H, Ac), 1.4-1.7 (m, 4H, OCH2CH2), 1.2 (t, 9H, J=7 Hz, SiOCH2CH3) 0.5-0.6 (m, 2H, Si-CH2)
IR(KRS5);ν 2940, 1750 (Ac,C=O), 1370, 1225, 1055 (Si-O)
実施例1と同様にして以下の化合物5〜9を合成した。なお、原料に用いた化合物1に相当する化合物は、いずれも原料化合物の糖の種類を代えた以外は、実施例1に示した化合物1の合成方法と同様の方法で合成した。尚、化合物5(ラクト-N-ネオテトラオース)の原料は、例えば、Y. Yamada et al., Carbohydrate Res., 341, 467 (2006)に記載の方法に従って合成できる。また、化合物7(シアリルラクトース(1−4)の原料は、例えば、K. Matsuoka et al., Tetrahedron Lett., 42, 3327 (2001) に記載の方法に従って合成できる。
色素含有シリカナノ微粒子の調製法
(文献(W. Lian et.al., Analytical Biochemistry 2004, 334, 136-137)記載の方法に準じている)
蛍光特性は、非特許文献2(W. Lian, et al., Anal.Biochem., 334,135-144 (2004))に記載の方法により測定した。
IR(KBr);ν 1070 (Si-O)
ラクトース担持色素含有ナノ微粒子の調製法
また、蛍光顕微鏡観察によりナノガラス微粒子は50nm〜100nm程度の粒子径を有することが確認された。(収量:48mg、収率:56%、Ruは2%含有)
IR(KBr);ν 2940, 1750 (Ac,C=O), 1370, 1225, 1070 (Si-O)
Trimethoxysilylpentenyl O-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-(1→4)-2,3,6- tri-O-acetyl-α-D-glucopyranoside(3)の合成
1H-NMR (CDCl3, 200 MHz) δ:0.6 (2H, m, Si-CH2-CH2)
化合物3
1H NMR (CDCl3, 400 MHz):δ: 5.34 (d, 1H, J3’, 4’ =3.6 Hz, H-4’), 5.19 (t, 1H, J =9.2 Hz, H-3), 5.11 (dd, 1H, J1’, 2’ =8.0 Hz, J2’, 3’ =10.4 Hz, H-2’), 4.93-5.02 (m, 1H, H-3’), 4.89 (dd, 1H, J1, 2 =8.0 Hz, J2, 3 =9.2 Hz, H-2), 4.44-4.49 (m, 3H, H-1, H-1’, H-6b), 4.05-4.15 (m, 3H, H-6’b, H-6’a, H-6a), 3.83-3.88 (m, 2H, H-5’, OCH2a), 3.79 (t, 1H, J =9.6 Hz, H-4), 3.56-3.61 (m, 1H, H-5), 3.52 (s, 9H, Si-O-CH3), 3.44-3.50 (m, 1H, OCH2b), 1.96-2.12 (several s, 21H, OAc), 1.58-1.70 (m, 4H, CH2CH2CH2Si, OCH2CH2), 1.20-1.25 (m, 2H, CH2CH2Si), 0.5-0.6 (m, 2H, Si-CH2)
IR(KRS5);ν 2940 (C-H), 1750 (Ac,C=O), 1370 (C-CO), 1225 (CH3COO), 1055 (Si-O)
アセチル保護発光体含有ゾルゲル微粒子(NPs(Ru)-LacOAc)の調製
IR(KBr);ν 2940 (C-H), 1750 (Ac,C=O), 1370 (C-CO), 1225 (CH3COO), 1070 (Si-O-Si) (備考:Ruは2%含有)
アセチル保護発光体含有ゾルゲル微粒子(NPs(Ru)-LacOAc)の脱保護
IR(KBr);ν 3410 (OH), 2925 (C-H), 1635, 1070 (Si-O-Si)
*)K. Loos et. al., Macromol. Chem. Phys., 202, 3210 (2001)(シロキサンに付けた糖鎖の脱保護に関する非特許論文)
Pentenyl O-(2,3,4,6-tetra-O-naphthoyl-β-D-galactopyranosyl)-(1→4)-2,3,6- tri-O- naphthoyl -α-D-glucopyranoside(13)の合成
Rf=0.68, (v/v) Tol:EtOAc=4:1
1H-NMR (CDCl3, 400 MHz) δ:7.12-8.71 (m, 49H, Ar), 6.06 (t, 1H, J=9.4 Hz , H-3), 5.99 (dd, 1H, J1',2' =8.0 Hz, J2',3' =10.2 Hz, H-2'), 5.85 (d, 1H, J=3.2 Hz, H-4'), 5.66 (dd, 1H, J1,2=8.0 Hz, J2,3 =9.6 Hz, H-2), 5.51-5.62 (m, 2H, H-3', CH=CH2), 5.16 (d, 1H, J=8 Hz, H-1'), 4.81 (d, 1H, J=8 Hz, H-1), 4.72-4,76 (m,4H, H-6'a, H-6a, CH=CH2), 4.50 (t, 1H, J=9.2 Hz , H-4), 3.99-4.03 (m, 2H, H-5', H-5), 3.82-3.95 (m, 3H, H-6'b, H-6b, O-CH2-a), 3.44-3.50 (m, 1H, O-CH2-b), 1.89-1.95 (m, 2H, CH2CH=CH2), 1.52-1.63 (m, 2H, CH2CH2CH=CH2)
Trimethoxysilylpentenyl O-(2,3,4,6-tetra-O-naphthoyl-β-D-galactopyranosyl)-(1→4)-2,3,6- tri-O- naphthoyl -α-D-glucopyranoside(15)の合成
ナフトイル保護発光体含有ゾルゲル微粒子(NPs(Ru)-LacOCONp)の調製
ナフトイル保護ゾルゲル微粒子(NPs-LacOCONp)の調製
IR(KBr);ν 3060 (Ar), 2940 (C-H), 1730 (Ac,C=O), 1280 (C-CO), 1225, 1190, 1130, 1090 (Si-O-Si), 775, 760
ラクトース誘導体を用いたルテニウム錯体およびマグネタイト含有ゾルゲル微粒子の一段階合成 ( 19 )
IR(KBr);ν 2939, 1751 (Ac,C=O), 1371, 1225, 1069 cm-1 (Si-O)
TEOSを用いルテニウム錯体含有微粒子の作製
微粒子にアセチル化したラクトースの導入
(参考例3で作製した微粒子について赤外吸収スペクトルを用いて糖鎖の導入量を評価した)
以下にその定量の手順について示す。
(1)微粒子3 0 10 mgとラクトース完全アセチル体 5 mgをそれぞれ別に量り取り、乳鉢を用いて均一に混ぜた後にIRスペクトルを測定した。
(2)C=O伸縮振動とSi-O-Siのピークの吸光度を読み取り、C=O伸縮振動の吸光度をSi-O-Siの吸光度で割ることによって吸光度比を求めた。
(3)同様に、微粒子30 10 mgとラクトース完全アセチル体 10 mgを混ぜ合わせたものについても吸光度比を求めた。
(4)(2)と(3)で求めた吸光度比を縦軸、量った糖鎖の量を横軸としてグラフにプロットし、図7を得た。図7 に微粒子表面に修飾された糖鎖の導入量の検量線を示す。
(5)実際に測定するサンプル31のIRスペクトルを測定し、これまでと同様に吸光度比を求めた。続いて図7で求めた近似曲線の式 ( y ) に吸光度比を代入することにより、微粒子表面上に修飾された糖鎖の導入量 ( x ) を求めることができる。
図8に化合物32の蛍光顕微鏡による観察結果を示す。図9に化合物32の走査型電子顕微鏡による観察結果を示す。
TEOSを用いてフェライトを含有した微粒子の合成
IR(KBr);ν 1751 (Ac,C=O), 1375, 1097 cm-1 (Si-O)
IR(KBr);ν 1099 (Si-O), 3400, 1653 cm-1 (H-O-H)
TEOSのみを用いて微粒子を作製し、アセチル基保護したラクトースで表面を修飾した。
参考例3で得た微粒子に別のアセチル化した3糖を導入し脱アセチル化した。アセチル化したラクトースについても脱アセチル化した
IR(KBr);ν 3445 (O-H), 2930 (C-H), 1125, 1030 (Si-O-Si)
参考文献:高分子論文集、Vol. 62, No. 2, p81 (2005)
IR(KBr);ν 3400 (O-H), 2940 (C-H), 1750 (C=O), 1370 (C-CO), 1220 (CH3CO), 1080 (Si-O-Si)
脱アセチル化した微粒子に対して、水中で蛍光標識されたタンパクを作用させ微粒子にタンパクが接着することを蛍光顕微鏡により観察した。糖鎖を修飾していない微粒子のみではこの現象が起こらないことも、併せて確認した。
FITC-PNAと表面にラクトースを修飾した微粒子52との相互作用を:蛍光顕微鏡を用いて発光を観察することにより、ラクトースとPNAとの接着を確認した。
緩衝液の調製
5 mM HEPES, 1 mM CaCl2, 2.7 mM KCl, 146 mM NaCl, pH 7.4となるように溶液を調製する。
Claims (16)
- 下記一般式(1-1)〜(1-7)で示されるクロルシラン化糖化合物。
- 下記一般式(2-1)〜(2-7)で示されるアルコキシシラン化糖化合物。
- 保護基がアセチル基またはNpOC(Npはナフトイル基)である請求項1または2に記載の化合物。
- 請求項2に記載された一般式(2-1)〜(2-7)で示されるアルコキシシラン化糖化合物と発光性物質および/または粒子状物質とを含む複合体。
- 下記(3-1)〜(3-7)で示されるアルコキシシラン化糖化合物と発光性物質および/または粒子状物質とを含む複合体。
- 発光性物質が金属錯体または有機色素である請求項4または5に記載の複合体。
- 金属錯体の中心金属がRu(ルテニウム)、Eu(ユーロピウム)、Tb(テルビウム)、Tm(ツリウム)、Yb(イッテルビウム)、またはCd/Se(カドミウム/セレン)である請求項6に記載の複合体。
- 有機色素がブロモピロガロールレッドまたはピロカテコールバイオレットである請求項6に記載の複合体。
- 粒子状物質が、磁性物質、金属、およびゾルゲル物質から成る群から選ばれる少なくとも1種の物質である請求項4〜8のいずれか1項に記載の複合体。
- 粒子状物質が、ゾルゲル物質で表面被覆された発光性物質、磁性物質および/または金属である請求項4〜8のいずれか1項に記載の複合体。
- ゾルゲル物質がテトラアルコキシシランおよび/またはトリアルコキシシランの加水分解物である請求項9または10に記載の複合体。
- アルコキシラン化糖化合物と発光性物質および/または粒子状物質との質量比が99.99〜95:0.01〜5の範囲である請求項4〜11のいずれか1項に記載の複合体。
- 複合体の平均粒子径は50nm〜500μmの範囲である請求項4〜12のいずれか1項に記載の複合体。
- 請求項2に記載された一般式(2-1)〜(2-7)で示されるアルコキシラン化糖化合物と発光性物質および/または粒子状物質とを疎水性溶媒中で反応させることで、一般式(2-1)〜(2-7)で示されるアルコキシラン化糖化合物と発光性物質および/または粒子状物質とを含む複合体を得る、請求項4に記載の複合体の製造方法。
- テトラアルコキシシランおよび/またはトリアルコキシシランを、前記アルコキシラン化糖化合物と同時に、または前後して、発光性物質および/または粒子状物質と反応させる請求項14に記載の複合体の製造方法。
- 請求項14または15の製造方法で得られた複合体から、糖の保護基を脱離させることを含む、請求項5に記載の複合体の製造方法。
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