JP4150673B2 - 疎水性表面チップ - Google Patents
疎水性表面チップ Download PDFInfo
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- JP4150673B2 JP4150673B2 JP2003542905A JP2003542905A JP4150673B2 JP 4150673 B2 JP4150673 B2 JP 4150673B2 JP 2003542905 A JP2003542905 A JP 2003542905A JP 2003542905 A JP2003542905 A JP 2003542905A JP 4150673 B2 JP4150673 B2 JP 4150673B2
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Description
本願は、2001年11月8日に出願された、米国仮特許出願番号60/350,110の非仮出願であり、この出願の開示は、その全体が全ての目的で本明細書中に参考として援用される。
バイオアッセイは、生物学的サンプル中の標的材料の存在および/または量に関してプローブするために使用される。表面ベースのアッセイにおいて、標的の量は、固体支持体上にこの標的を捕捉し、次いでそれを検出することによって、定量される。表面ベースのアッセイの1つの例は、DNAマイクロアレイである。DNAマイクロアレイの使用は、多数の遺伝子を同時にモニタリングする能力に起因して、遺伝子発現および遺伝子型決定の研究において、広範に利用されている(Schenaら、Science 270:467−470(1995);Pollackら、Nat.Genet.23:41−46(1999))。100,000より多くの異なるプローブ配列が、マイクロアレイ表面にわたる別個の空間的位置に結合され得、各スポットが、単一の遺伝子に対応する(Schenaら、Tibtech 16:301−306(1998))。蛍光標識されたDNA標的サンプルが、アレイの表面にわたって配置される場合、個々のDNA鎖は、各アレイスポット内の相補鎖にハイブリダイズする。検出される蛍光のレベルが、アレイ表面に結合したコピーの数、および従って、各遺伝子の相対的存在を定量し、一方で、各スポットの位置は、遺伝子の同定を決定する。アレイを使用して、ヒトゲノムにおける全ての遺伝子の発現を同時にモニタリングすることが、理論的には可能である。これは、遺伝学の全ての領域にわたる応用を有する、非常に強力な技術である。(いくつかの例については、Chipping Forecast supplement to Nature Genetics 21(1999)を参照のこと。)アレイはまた、アレイ形式における広範な種々のバイオアッセイを容易にするために、他の結合部分(例えば、抗体、タンパク質、ハプテンまたはアプタマー)を使用して作製され得る。
水膨潤性疎水性ヒドロゲルは、疎水性モノマー、親水性モノマーおよび架橋剤の組み合わせから、または疎水性と親水性との両方の官能基を含むモノマーおよび架橋剤から、組み立てられ得ることが、ここで発見された。本発明の疎水性ヒドロゲルは、分析方法のために使用されるチップの基材上の吸着剤層として、特に有用である。これらの疎水性部分は、分析物(例えば、ポリペプチド)を、吸着剤層上に固定するために有用である。親水性部分は、ヒドロゲルが水中で膨潤することを可能にし、これは次に、このヒドロゲルの表面積の大部分に分析物を接近させることによって、分析物を固定するヒドロゲルの能力を増加させる。さらに、このヒドロゲルは、疎水性部分および親水性部分の組み合わせを含み、疎水性(分析物に対する親和)および水膨潤性(分析物の容量)の程度は、ヒドロゲル中の親水性部分および疎水性部分の比を変化させることによって、操作され得る。
(略号)
「H4」とは、本明細書中で使用される場合、適切には水膨潤性ではない直鎖C16ポリマーをいい、そしてより具体的には、C16ポリマーを組み込むチップをいう。
置換基がその従来の化学式によって、左から右へと書かれて特定される場合、これらは、その構造を右から左へと書くことによって生じる、化学的に同一な置換基を等しく包含する。例えば、−CH2O−は、−OCH2−をもまた表すことが意図され;−NHS(O)2−はまた、−S(O)2HN−を表すことを意図する、などである。
水溶液中の親水性ゲルは、広く研究されているが、多くのポリマーは、ゲルを形成するために架橋され得る。ゲルの三次元ネットワークは、架橋によって安定化される。架橋は、共有結合、物理的もつれ、クリスタライト、電荷複合体、水素結合、ファンデルワールス相互作用または疎水性相互作用によって提供される。ゲルは、化学的分離、生物医学的デバイスおよび吸着剤生成物における、多くの技術的に重要な役割を有し、小さな領域を示す。ゲルを有用にする特徴としては、これらの収着能力、膨潤動力学、溶解された溶質に対する透過率、表面特性(例えば、粘着性)、機械的特性、および光学的特性(S.H.Gehrke,p85、ADVANCES IN POLYMER SCIENCE,K.Dusek編、第110巻(Springer−Verlag New York 1993))が挙げられる。
本発明のヒドロゲルは、減少した塩の条件下での広い範囲の疎水性度にわたって、水膨潤性であり、分子を結合し得るという点で特有である。すなわち、ゲルの疎水性特性は、塩依存性ではない。この特徴は、塩の存在が、生体分子分析物を脱着し、そして検出する能力と干渉するSELDIの改善された能力を提供する。ヒドロゲルの塩非依存性特性は、大きな疎水性部分(例えば、少なくとも4の連続した炭素原子(例えば、ブチル)およびより好ましくは、少なくとも8の連続した炭素原子(例えば、オクチル)または他の非極性原子を有する部分)を使用することによって達成される。水膨潤性は、ポリマー中に十分な良の親水性部分を提供することによって達成される。
不飽和モノマーの水溶液重合は、連続法またはバッチ法のいずれかによって実施され得るか、または吸引、圧力、または大気圧下で実施され得る。重合は、好ましくは、不活性気体(例えば、窒素、ヘリウム、アルゴン、または炭酸ガス)の流れにおいて実施される。
第2の局面において、本発明は、本発明の疎水性ヒドロゲルが固定化される表面を有する基材を備えるチップを提供する。本明細書中に開示される本発明はまた、ヒドロゲル上への標的種の捕捉に基づくアッセイ系の、感度、特異性および動的範囲を増加させるための、本発明のチップを使用する方法を包含する。これらのアッセイは、表面基準である。
本発明のチップにおいて、標的のための吸着剤フィルムが、直接的にかまたは基材とこの吸着剤フィルムとの間に挿入された可変性リンカーアームを介してかのいずれかによって、この基材上に固定化される。この可変性リンカーは、この基材表面の平面に結合されるか、またはこの可変性リンカーは、この基材表面の特性(例えば、隆起特性(例えば、島)または陥没特性(例えば、ウェル、トラフなど))に結合される。本発明を実施する際に有用な基材は、任意の適切な材料、または材料の組み合わせから製造され得る。さらに、有用な基材は、任意の簡便な幾何学または構造特性の組み合わせを有するように構成され得る。これらの基材は、剛性であるかまたは可撓性であるかのいずれかであり得、かつ光学的に透明であるかまたは光学的に不透明であるかのいずれかであり得る。これらの基材はまた、電気絶縁体、導体、または半導体であり得る。さらに、これらの基材は、液体、蒸気および/または気体に実質的に不透過性であり得るか、あるいは、これらの基材は、これらのクラスの材料のうちの1種以上に実質的に透過性であり得る。
好ましい実施形態において、本発明のチップの吸着剤層は、固定化された分析物の検出が、その標的分析物の溶出も、回収も、増幅も、標識も必要としないように構成される。さらに、別の実施形態において、アドレス可能な吸着剤フィルム内の1つ以上の位置での、1以上の分子認識事象の検出は、総吸着剤−分析物複合体の小画分ほどの除去も消費も必要としない。従って、使用されない部分は、構造および機能の解明(さらなるアセンブリ、ディスアセンブリ、改変、または増幅(直接的または間接的)を含む)の目的のために、インサイチュで(すなわち、アドレス可能な位置の境界内で)直接行われる1以上の「二次プロセシング」事象の後に、さらに問い合わせされ(interrogate)得る。
多くの反応型が、基材表面の、アンカー部分との官能基化のために利用可能である。例えば、プラスチック(例えば、ポリプロピレン)から構成される基材は、クロム酸の酸化によって誘導体化され、続いてヒドロキシル化表面またはアミノメチル化表面に変換された、表面であり得る。高度に架橋されたジビニルベンゼンから作製される基材は、クロロメチル化、続いて官能基操作によって誘導体化された表面であり得る。さらに、官能基化された基材は、エッチングされた還元ポリテトラフルオロエチレンから作製され得る。ポリマー基材を誘導体化する他の方法は、当業者に公知である。
1.ヒドロキシアルキルシロキサン(表面をシリル化し、ジボランで官能基化し、そしてH2O2をアルコールで酸化する)
a.アリルトリクロロシラン →→ 3−ヒドロキシプロピル、
b.7−オクト−1−エンイルトリクロルクロロシラン →→ 8−ヒドロキシオクチル;
2.ジオール(ジヒドロキシアルキル)シロキサン(表面のシリル化、およびジオールへの加水分解)
a.(グリシルトリメトキシシラン →→ (2,3−ジヒドロキシプロピルオキシ)プロピル;
3.アミノアルキルシロキサン(中間の官能基化工程を必要としないアミン)
a.3−アミノプロピルトリメトキシシラン → アミノプロピル;
4.二量体の第二級アミノアルキルシロキサン
a.ビス(3−トリメトキシシリルプロピル)アミン → ビス(シリルオキシプロピル)アミン;および、
不飽和種(例えば、アクリロイル、メタクリロイル、スチリルなど)。
(RO)3−Si−R1−X1 (III)
式中、Rは、アルキル基(例えば、メチルまたはエチル)であり、R1は、ケイ素とX1との間の連結基であり、そしてXlは、反応性基または保護反応性基である。この反応性基はまた、以下で議論されるような吸着剤層のメンバーであり得る。示されたアルコキシ基のそばにハロゲンまたは他の脱離基を有するシラン誘導体もまた、本発明において有用である。
Y−S−R2−X2 (IV)
ここで、R2は、イオウとX2との間の連結基であり、そしてX2は、反応性基または保護された反応性基である。X2はまた、吸着剤フィルムのメンバーであり得る。Yは、H、R3およびR3−S−からなる群から選択されるメンバーであり、ここで、R2およびR3は、独立して選択される。
Y−S−R2−(X2)n (VI)
ここで、記号R2、X2、Y、R3は、実質的に上記と同じ意味を有する。
反応性官能基は、アンカー部分へ吸着剤層を連結するための、結合部位として働く。本発明の好ましい実施形態において、この反応性官能基は、吸着剤層の成分上の反応性基に相補的である。相補的官能基を使用する例示的な実施形態において、1つ以上のモノマーまたは架橋基が、反応性官能基を介してアンカー部分に共有結合される。次いで、重合反応が行われ、基材に結合されたヒドロゲルが生成する。さらに好ましい実施形態において、この反応性基は、吸着剤層の1つ以上の成分との重合反応に関与し得る。
(a)カルボキシル基およびその種々の誘導体(N−ヒドロキシスクシンイミドエステル、N−ヒドロキシベンズトリアゾールエステル、酸ハライド、アシルイミダゾール、チオエステル、p−ニトロフェニルエステル、アルキル、アルケニル、アルキニルおよび芳香族エステルが挙げられるが、これらに限定されない);
(b)エステル、エーテル、アルデヒドなどに変換され得るヒドロキシル基;
(c)ハロアルキル基であって、ここでハライドが、後に求核基(例えば、アミン、カルボン酸アニオン、チオールアニオン、カルボアニオンまたはアルコキシドイオン)で置換され得、それによってハロゲン原子の部位に新たな基の共有結合を生じる、ハロアルキル基;
(d)Diels−Alder反応に関与し得るジエノフィル基(例えば、マレイミド基);
(e)アルデヒドまたはケトン基(後の誘導体化が、カルボニル誘導体(例えば、イミン、ヒドラゾン、セミカルバゾンまたはオキシム)の形成によって、またはGrignard付加またはアルキルリチウム付加のような機構によって、可能となるような);
(f)例えば、スルホンアミドを形成する、アミンとの後の反応のためのスルホニルハライド基;
(g)ジスルフィドに変換され得るか、またはアシルハライドと反応され得る、チオール基;
(h)例えば、アシル化またはアルキル化され得る、アミン基またはスルフヒドリル基;
(i)例えば、付加環化、ラジカル重合、アシル化、Michael付加などを受け得る、アルケン;ならびに
(j)例えば、アミンおよびヒドロキシル化合物と反応し得るエポキシド。
本発明の方法は、検出可能な様式で結合官能基と相互作用する任意の標的または標的のクラスを検出するために使用され得る。標的と結合官能基との間の相互作用は、任意の物理化学的相互作用(共有結合、イオン結合、水素結合、van der Waals相互作用、吸引性電子相互作用および疎水性/親水性相互作用を含む)であり得る。
本発明のチップは、実質的に任意の様式のアッセイ(クロマトグラフ捕獲、イムノアッセイ、競合アッセイ、DNAまたはRNA結合アッセイ、蛍光インサイチュハイブリダイゼーション(FISH)、タンパク質および核酸プロファイリングアッセイ、サンドイッチアッセイなどが挙げられるが、これらに限定されない)の実施に有用である。以下の考察は、例示的なアッセイの実施における本発明の方法の使用に焦点を当てる。この焦点は、例示を明確にするためのみであり、本発明の範囲を規定も限定もしないことが意図される。当業者は、本発明の方法が、標的の存在および/または量の検出のための任意のアッセイ技術に広く適用可能であることを理解する。
吸着剤フィルム上に固定された分析物の存在および分析物の結合における吸着剤フィルム中の変化が、顕微鏡、分光測定法、電気的技術などの使用によって検出され得る。例えば、特定の実施形態において、可視領域のスペクトルにおける光が、吸着剤フィルムの詳細(例えば、反射率、透過率、複屈折、回折など)を明らかにするのに用いられる。あるいは、光が、吸着剤フィルムを介して通り得、透過された光の量、吸収された光の量または反射された光の量が、測定され得る。このデバイスは、米国特許第5,739,879号に記載されるような逆光照明デバイスを利用し得る。紫外領域および赤外領域の光がまた、本発明において用いられる。
診断学の分野において分析物の低濃度の検出のために、化学発光および電気化学発光の方法の使用が広がりつつある。化学発光および電気化学発光の方法は、発光分子または光子の数を増幅することによって低濃度の分析物を検出する方法を提供し、何倍もの、生じる「シグナル増幅」の事象を生じ、続いて低濃度分析物の検出を可能にする。
(情報科学)
本発明の方法を用いて得られる高分解、高感度のデータセットが当該分野で利用可能となったために、診断、治療、薬物発達、バイオセンサー発達および他の関連する領域における有意な進歩が生じるだろう。例えば、疾患マーカーが、疾患状態または疾患段階のより良い確認のために同定され、利用され得る(米国特許第5,672,480号;同第5,599,677号;同第5,939,533号;および同第5,710,007号を参照のこと)。亜細胞毒物学情報が、より良い直接の薬物構造と活性相関を生じ得る(Anderson,L.,「Pharmaceutical Proteomics:Targets,Mechanism,and Function」,paper presented at the IBC Proteomics conference,Coronado,CA(June 11−12,1998)を参照のこと)。亜細胞毒物学情報はまた、科学的汚染の毒物学効果の見込みおよび耐え得る汚染の許容限界の見込みを予測するための生物学的センサーデバイスにおいて利用され得る(米国特許第5,811,231号を参照のこと)。同様な利点が、他の生物分子および生物活性剤に関してデータベースから生じる(例えば、核酸、糖類、脂質、薬物など)
従って、別の好ましい実施形態において、本発明は、少なくとも1セットのデータアッセイデータを含むデータベースを提供する。データベース中に含まれるデータは、発明の方法および/または単一もしくはライブラリフォーマットにおけるいずれかの本発明のQD標識種を用いて得られる。データベースは、データが、保存し、伝え得る実質的に任意の形態で良いが、好ましくは電子データベースである。本発明の電子データベースは、パーソナルコンピューターのようなデータベースの保存および利用を可能にする任意の電子デバイス上で保存し得、しかし好ましくはワールドワイドウェブのような広範な領域のネットワークに配信される。
さらなる局面において、本発明は、本発明のチップの作製を可能にするキットを提供する。このキットは、代表的には、吸着チップの1以上の構成要素およびチップを作製するための説明書を含む。一般的に、このキットは、組み合わされて本発明で有用なヒドロゲルを形成し得る、1つ以上のモノマーおよび1つ以上の架橋剤を含む。このキットはまた、ヒドロゲルが接着するチップ基材を含み得る。このキットはまた、一般的に、キットに含まれる構成要素から本発明のチップを作製するための説明書または説明書へのアクセス(例えば、World Wide Webページリンク)を提供する。
(1.1 材料および方法)
酢酸エタノール、2−ヒドロキシ−4−ヒドロキシエトキシフェニル−2−メチルプロパノール、シナピン酸(sinnapinic acid)、トリフルオロ酢酸およびアセトニトリルを、Aldrichから購入した。メトキシプロピルトリメトキシシランをGelestから購入した。ポリ(エチレングリコール)ジメタクリレートをPolysciencesから購入した。ノニルフェノキシ−ポリ(エチレングリコール)メタクリレートをMonomer−Polymer & Dajac Labから購入した。
9mm×78mmの寸法を有する平らなアルミニウム(6463−T6)基材ブランクの表面をスパッタリングにより、二酸化ケイ素で誘導体化した。過フッ素置換されたポリマーでコーティングすることによって、アドレスできる位置(「スポット」)を基材表面に作製し、スポットを規定するために、コーティングに「穴」を残した。
二酸化ケイ素でコーティングした基材を、オービタルシェイカー(orbital shaker)のポリ(プロピレン)ボックスに配置した。エタノール(93mL)、脱イオン水(5mL)およびメタクリルオキシプロピルトリメトキシシラン(2mL)を添加した。混合物を2分間攪拌した後、1N酢酸(50μL)を添加した。基材を反応混合物から取り出し、表面をエタノールで洗浄し、80℃まで30分間加熱した。
2−ヒドロキシ−(4−ヒドロキシエトキシフェニル)−2−メチルプロノパン(50mg)、ノニルフェノキシ−ポリ(エチレングリコール)メタクリレート(1.9g)およびポリ(エチレングリコール)ジメタクリレート(PEG約1000)(0.1g)を脱イオン水(10mL)に溶解させた。上記の溶液を、エタノール(90mL)を加えて10倍に希釈する。得られた溶液を、実施例1.2からのシラン化基材に堆積し(スポットあたり1.5μL)、そして、近UV曝露システムで10分間照射する。照射の後、表面を脱イオン水で2度洗浄し、そして、アセトンで1度洗浄する。
結合緩衝液(水中、5μLの1% TFA)を、実施例1で作製したチップの各スポットにロードした。このチップおよび緩衝液を、室温で5分間インキュベートし、その後、過剰の緩衝液をスポットから除去した。サンプルを、結合緩衝液(2〜3μL)に溶解し、各スポットにロードした。このチップおよびサンプルを30分間インキュベートし、その後、各スポットを緩衝液(5μL)で2度洗浄し、次いで、水で洗浄した。各スポットに飽和EAM(1μLシナピン酸)を添加し、そして、サンプルを質量分析法で分析した。分析の結果を図1に示す。
実施例3は、洗浄緩衝液中の異なるアセトニトリル濃度を使用して、特定の分析物に対するH50の選択性を示す。
実施例4は、H50とH4の比較を提供する。
ウシ血清サンプル:図7、図8および図9(質量範囲による)
これらの結果は、H4チップに吸着された疎水性のより低い特定のタンパク質が、H50チップに吸着されたものよりも、アセトニトリルでの洗浄によって、より容易に除去されることを示す。
Claims (30)
- 前記分析物が生体分子である、請求項1に記載のチップ。
- R 1 は、アルキル置換アリールである、請求項1に記載のチップ。
- 前記架橋剤が、ポリ(エチレングリコール)ジメタクリレートである、請求項1に記載のチップ。
- 前記表面が、前記吸着剤層を共有結合を介して該表面に結合するアンカー部分をさらに含む、請求項1に記載のチップ。
- 前記アンカー部分が、オルガノチオール、オルガノシランおよびこれらの組み合わせからなる群から選択されるメンバーを含む、請求項5に記載のチップ。
- 前記アンカー部分が、スチリルエチルトリメトキシシラン、スチリルエチルメチルジメトキシシラン、スチリルエチルジメチルメトキシシラン、スチリルエチルトリクロロシラン、スチリルエチルメチルジメトキシシラン、スチリルエチルジメチルメトキシシラン、(3−アクリルオキシプロピル)トリメトキシシラン、(3−アクリルオキシプロピル)メチルジメトキシシラン、(3−アクリルオキシプロピル)ジメチルメトキシシラン、(3−アクリルオキシプロピル)トリクロロシラン、(3−アクリルオキシプロピル)メチルジクロロシラン、(3−アクリルオキシプロピル)ジメチルクロロシラン、(3−メタクリルオキシプロピル) トリメトキシシラン、(3−メタクリルオキシプロピル)メチルジメトキシシラン、(3−メタクリルオキシプロピル)ジメチルメトキシシラン、(3−メタクリルオキシプロピル)トリクロロシラン、(3−メタクリルオキシプロピル)メチルジクロロシラン、(3−メタクリルオキシプロピル)ジメチルクロロシランおよびこれらの組み合わせから選択されるシランを含む、請求項6に記載のチップ。
- 前記ヒドロゲルが、ノニルフェノキシ−ポリ(エチレングリコール)メタクリレートとポリ(エチレングリコール)ジメタクリレートとのコポリマーである、請求項1に記載のチップ。
- 単位重量の前記吸着剤層が、該単位重量の約10倍〜約100倍の量の水を吸収する、請求項1に記載のチップ。
- 前記表面が、少なくとも1つのアドレス可能な特徴を含み、該アドレス可能な特徴は、該アドレス可能な特徴に結合する前記吸着剤層を有する、請求項1に記載のチップ。
- 前記基材が、粗い表面、実質的に滑らかな表面、パターン化された表面およびこれらの組み合わせからなる群から選択されるメンバーである、請求項1に記載のチップ。
- 前記パターン化された表面が、溝切り、フォトリソグラフィー、フォトエッチング、化学エッチング、機械エッチング、マイクロコンタクト印刷およびこれらの組み合わせからなる群から選択されるメンバーである方法によって生成される、請求項11に記載のチップ。
- 前記パターンが約1μm〜約5mmのサイズを有する特徴を含む、請求項11に記載のチップ。
- 前記パターンが、ウエル、エンドクロージャー、区画、凹部、入口、出口、チャネル、トラフ、回折格子およびこれらの組み合わせからなる群から選択されるメンバーである、少なくとも1つの特徴を含む、請求項11に記載のチップ。
- 前記吸着剤層と相互作用する分析物をさらに含む、請求項1に記載のチップ。
- 前記分析物がポリペプチドである、請求項15に記載のチップ。
- 分析物を検出する方法であって、該方法は以下:
(a)前記分析物を、請求項1に記載のチップの吸着剤層上に吸着し、それによって該分析物を該チップ上に固定化する工程;および
(b)該チップ上に固定化された該分析物を検出する工程、
を包含する、方法。 - 前記吸着する工程が、前記分析物と前記吸着剤層との間の塩非依存性疎水性引力による、請求項17に記載の方法。
- 前記工程(a)と(b)との間に、水性緩衝液、有機溶媒およびこれらの組み合わせから選択されるメンバーで前記チップを洗浄する工程をさらに包含する、請求項17に記載の方法。
- 前記分析物が前記チップ上で直接検出される、請求項17に記載の方法。
- 前記分析物がレーザー脱着/イオン化質量分析によって検出される、請求項17に記載の方法。
- 前記分析物が、蛍光によって検出される、請求項17に記載の方法。
- 分析物を検出する方法であって、該方法は、以下:
(a)請求項1に記載のチップを、分析物を含む分析物混合物と接触させ、それによって該分析物を該チップに固定化する工程;
(b)該固定化した分析物を、水性緩衝液、有機溶媒、およびこれらの組み合わせから選択されるメンバーで洗浄する工程;
(c)マトリクス材料を該固定化した分析物に塗布する工程; および
(d)該分析物をレーザー脱離/イオン化質量分析によって検出する工程、
を包含する、方法。 - 請求項1に記載の吸着剤チップを作製する方法であって、該方法は、以下:
(a)アンカー試薬を、基材表面および該アンカー試薬上の相補的な反応基を介して該表面に共有結合する工程であって、ここで、該アンカー試薬は、該吸着剤層を結合するための場所を含む、工程;
(b)該場所を該モノマーおよび該架橋剤と接触させる工程;
(c)該モノマーおよび該架橋剤を共重合する工程であって、これによって該吸着剤層を形成し、そして該吸着剤層を該場所を介して該表面に固定化する、工程、
を包含する、方法。 - 前記基材が、アルミニウムを含む、請求項24に記載の方法。
- 前記アンカー試薬がシロキサンを含む、請求項24に記載の方法。
- 前記アンカー試薬が前記基材表面上の複数のアドレス可能な位置で共有結合する、請求項24に記載の方法。
- 前記シロキサンが、3−(トリメトキシシリル)プロピルメタクリレートである、請求項26に記載の方法。
- 請求項1に記載の吸着剤チップを形成するためのキットであって、以下:
(a)表面を含む該金属基材;
(b)該モノマーで充填される第1のコンテナ;および
(c)該架橋剤で充填される第2のコンテナ、
を備える、キット。 - 請求項29に記載のキットであって、さらに:
(d)前記モノマーと前記架橋剤とを反応させ、これによって塩非依存性疎水性引力を介して分析物に結合する該水膨潤性ヒドロゲルを形成し、そして該ヒドロゲルを前記表面に結合するための指示書、
を備える、キット。
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2002
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- 2002-11-07 WO PCT/US2002/036171 patent/WO2003040700A1/en active Application Filing
- 2002-11-07 EP EP02791224A patent/EP1451554A4/en not_active Withdrawn
- 2002-11-07 CA CA 2466052 patent/CA2466052A1/en not_active Abandoned
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JP2005509155A (ja) | 2005-04-07 |
WO2003040700A1 (en) | 2003-05-15 |
EP1451554A4 (en) | 2004-12-15 |
US7842498B2 (en) | 2010-11-30 |
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US20030124371A1 (en) | 2003-07-03 |
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