JP5356518B2 - 遠隔制御エネルギー転移染料錯体 - Google Patents
遠隔制御エネルギー転移染料錯体 Download PDFInfo
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- JP5356518B2 JP5356518B2 JP2011515138A JP2011515138A JP5356518B2 JP 5356518 B2 JP5356518 B2 JP 5356518B2 JP 2011515138 A JP2011515138 A JP 2011515138A JP 2011515138 A JP2011515138 A JP 2011515138A JP 5356518 B2 JP5356518 B2 JP 5356518B2
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Description
・Tbは、テルビウム(III)である。
・Picは、ピコリネートである。
・Yは、官能基であり、特にアミノ酸、カルボキシレート、イソシアネート、チオイソシアネート、エポキシ、チオール及びヒドロキシル基からなる群から選択された官能基であり、好ましくはヒドロキシル基である。
・xは、1〜4までの整数であり、特に1又は2であり、好ましくは1である。且つ
・y及びzは、それぞれ0から4までの整数であり、y+z=4である。
・Euはユウロピウム(III)である。
・Pic’は、ピコリン酸塩である。
・Y’は、官能基であり、特にカルボキシレート、イソシアネート、チオイソシアネート、エポキシ、チオール及びヒドロキシル基からなる群から選択された官能基であり、好ましくはヒドロキシル基である。
・x’は、1から4までの整数であり、特に1又は2であり、好ましくは1である。
・y’及びz’は、それぞれ0から4までの整数であり、y’+z’=4である。
・DFは、ドナーフルオロフォア、特にフルオロフォア(A)である。
・AFは、アクセプターフルオロフォア、特にフルオロフォア(B)である。
・Sは、特に2価及び/若しくは2接着有機ラジカルであり、特にリンカー及び/若しくはスペーサである。
3アミノピコリン酸又は3−ヒドロキシピコリン酸は、蒸留水に溶解され、1M水酸化ナトリウムの対応する量で中和され、3−アミノピコリン酸ナトリウム塩又は3−ヒドロキシピコリン酸ナトリウム塩として結晶化される。
テトラピコリネート錯体:
0.4350gのピコリン酸ナトリウム塩(3mmol)と0.1600gの3−アミノピコリン酸ナトリウム塩(又は3−ヒドロキシピコリン酸ナトリウム塩)(1mmol)が、溶解される。30mlの加熱されたDMSO(ただ一種類のリガンドを有する錯体との合成に関して、4mmolの対応するナトリウム塩が調合される)、0.3664gのEuCl3・6H2O(又は、0.3730gのTbCl3・6H2O、又は、0.18324gのEuCl3・6H2O及び0.1865gのTbCl3・6H2Oの混合錯体)(1mmol)が少量のDMSOに溶解され、リガンド溶液が付加される。その混合液は、90℃で2時間反応に委ねられ、その後DMSOは、同じ温度で、真空下で蒸留される。これによって得られたベージュ色の粉末は、1時間還流下THFで沸騰され、濾過され且つ80℃の真空下で1時間乾燥される。
0.2900gのピコリン酸ナトリウム塩(2mmol)及び0.1600gの3−アミノピコリン酸ナトリウム塩(又は3−ヒドロキシピコリン酸ナトリウム塩)(1mmol)が、ほとんど溶解される。30mlの加熱されたDMF(1種類のリンがのみを有する錯体の反応で、3mmolの対応するナトリウム塩が調合される)と、0.3664gのEuCl3・6H2O(又は0.37730gのTbCl3・6H2O、又は0.1832gのEuCl3・6H2O及び0.1865gのTbCl3・6H2Oの混合錯体)(1mmol)が、少しの量のDMFに溶解され、リガンド溶液が付加される。生成された沈殿物は濾過され、エタノールで洗浄され、50℃の真空下で1時間乾燥される。
錯体NaEuxTb(1-x)(Pic)3(Pic-Y)(例えば緑色発光錯体のみを有する標識ではx=0;赤色発光錯体のみを有する標識ではx=1;緑色及び赤色発光錯体を有する標識ではx=0.5;Pic=ピコリネート;Pic−Y=3−アミノピコリネート又は3−ヒドロキシピコリネート)は、110℃の真空(2・10−2mbar)下で3時間乾燥され、DMSOに溶解され、乾燥されたDMSO(Pic−Y:NCOのモル比1:1)に、適当な量のDNA溶液が不活性ガス環境下で付加される。その反応は、アルゴンガスの存在において。90℃で24時間(又は3−ヒドロキシピコリネートの反応では70時間)実行される。必要に応じて、DMSOは、真空下同じ温度で蒸留される。
錯体NaEuxTb(1-x)(Pic)3(Pic-Y)(例えば緑色発光錯体のみを有する標識ではx=0;赤色発光錯体のみを有する標識ではx=1;緑色及び赤色発光錯体を有する標識ではx=0.5;Pic=ピコリネート;Pic−Y=3−アミノピコリネート又は3−ヒドロキシピコリネート)は、DMSOに溶解され、適当な量のDNA水溶液、DMSO又はDMSO/水の溶液(Pic−Y:NCSのモル比1:1)が付加される。その反応は、24時間(又は3−ヒドロキシピコリネートの反応では70時間)実行される。必要に応じて、DMSO又は水が、真空下同じ温度で蒸留される。
Claims (1)
- ドナーフルオロフォアとしての少なくとも1つの第1のフルオロフォア(A)と、アクセプターフルオロフォアとしての少なくとも1つの第2のフルオロフォア(B)からなる蛍光共鳴エネルギー転移錯体(FRET錯体)であって、前記第1のフルオロフォア(A)及び前記第2のフルオロフォア(B)が、有機ラジカルを介してお互いに結合又は化学結合されると共に、お互いに独立した前記第1のフルオロフォア(A)及び前記第2のフルオロフォア(B)が、それぞれ希土類元素の有機金属錯体に基づいて構成されること、前記第1のフルオロフォア(A)及び前記第2のフルオロフォア(B)がお互いに異なる希土類元素を具備すること、
前記第1のフルオロフォア(A)が、化学式
[Tb x (Pic) y (Pic-Y) z ] (4-3x)-
で示される化合物であり、この化学式において、
・Tbは、テルビウム(III)であり、
・Picは、ピコリネートであり、
・Yは、アミノ酸、カルボン酸塩、イソシアン酸塩、チオイソシアン酸塩、エポキシ、チオール及びヒドロキシル基からなる群から選択された官能基であり、
・xは、1〜4までの整数であり、且つ、
・y及びzは、それぞれy+z=4を満足させる0から4までの整数であること、且つ、
前記第2のフルオロフォア(B)が、化学式
[Eu x’ (Pic’) y’ (Pic’-Y’) z’ ] (4-3x’)-
で示される化合物であり、この化学式において、
・Euはユウロピウム(III)であり、
・Pic’は、ピコリネートであり
・Y’は、カルボキシレート、イソシアネート、チオイソシアネート、エポキシ、チオール及びヒドロキシル基からなる群から選択された官能基であり、
・x’は、1から4までの整数であり、且つ、
・y’及びz’は、それぞれy’+z’=4を満足させる0から4までの整数であることを特徴とする蛍光共鳴エネルギー転移錯体。
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WO2013134342A1 (en) * | 2012-03-09 | 2013-09-12 | New York University | Methods and kits for detecting non-luminescent or weakly luminescent metals |
CN102830101B (zh) * | 2012-08-14 | 2015-11-25 | 中国科学院上海应用物理研究所 | 一种基于荧光共振能量转移的超分辨成像方法 |
CN103901000B (zh) * | 2012-12-26 | 2016-09-28 | 江南大学 | 一种基于荧光共振能量转移检测伏马菌毒素b1的方法 |
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CN107727624B (zh) * | 2017-10-16 | 2020-12-22 | 太原理工大学 | 一种基于适体传感荧光能量共振转移的抗生素检测方法 |
US11726081B2 (en) | 2019-02-15 | 2023-08-15 | Regents Of The University Of Minnesota | Methods to identify modulators of tau protein structure |
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CN102131893A (zh) | 2011-07-20 |
DE202008009713U1 (de) | 2009-08-06 |
ES2394762T3 (es) | 2013-02-05 |
CN102131893B (zh) | 2014-03-26 |
EP2294159B1 (de) | 2012-09-05 |
WO2009156019A1 (de) | 2009-12-30 |
DE102008033871A1 (de) | 2009-12-31 |
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