JP4630345B2 - 表面増強ラマン分光法(sers)による増強された多重信号の検出 - Google Patents
表面増強ラマン分光法(sers)による増強された多重信号の検出 Download PDFInfo
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Description
Claims (26)
- 生物学的ターゲット複合体であって、
a)第1の特異結合部材に関連付けられるターゲット分析物と、
b)前記第1の特異結合部材に結合し、ターゲット複合体を形成する第2の特異結合部材であって、該第2の特異結合部材は、金属コロイド溶液からのナノ微粒子の形成を促すことによって表面増強ラマン散乱(SERS)基質の形成を触媒するのに適したシード粒子を含みSERS効果を与えるように、該SERS基質を活性化することができる、第2の特異結合部材と、
c)固体基質に結合される捕捉試薬であって、該捕捉試薬はラマン標識を含む、捕捉試薬と
を備え、前記ターゲット分析物は前記捕捉試薬に結合し、生物学的ターゲット複合体を形成する、生物学的ターゲット複合体。 - 前記ターゲット分析物は、DNA,RNA、ポリペプチド、抗体、抗原、又は炭水化物である、請求項1に記載の試薬。
- 前記捕捉試薬は、DNA,RNA、ポリペプチド、抗体、抗原、又は炭水化物である、請求項1に記載の試薬。
- 前記第1の特異結合部材又は前記第2の特異結合部材は、DNA,RNA、抗体、抗原、ポリペプチド又は炭水化物である、請求項1に記載の試薬。
- 前記第1の特異結合部材又は前記第2の特異結合部材はビオチンである、請求項4に記載の試薬。
- 前記第1の特異結合部材又は前記第2の特異結合部材はアビジンである、請求項4に記載の試薬。
- 前記ラマン標識は、400未満の分子量を有する分子である、請求項1に記載の試薬。
- 前記シード粒子は、金、Ag、Cu、Pt、Ag/Au、Pt/Au、Cu/Auコアシェル及び合金粒子から成るグループから選択される、請求項1に記載の試薬。
- 前記ターゲット分析物はさらに、補助的な特異結合部材を含む、請求項1に記載の試薬。
- 前記ターゲット分析物及び前記第1の特異結合部材は直に結合することによって関連付けられる、請求項1に記載の試薬。
- 前記ターゲット分析物及び前記第1の特異結合部材は間接的に結合することによって関連付けられる、請求項1に記載の試薬。
- 前記間接的な結合は、媒介分子を通して結合することによる、請求項10に記載の試薬。
- 前記媒介分子は、前記第1の特異結合部材に機能的に関連付けられる抗体である、請求項12に記載の試薬。
- 前記SERS基質は、照射されるときにSERS効果を達成するための銀、金又は銅染色剤を含む、請求項1から13のいずれかに記載の試薬。
- 方法であって、
a)第1の特異結合部材と関連付けられるターゲット分析物を配設すること、
b)固体基質に結合される捕捉試薬を配設することであって、該捕捉試薬はラマン標識を含む、配設すること、
c)前記a)の前記ターゲット分析物を、前記b)の前記捕捉試薬に、ターゲット分析物−捕捉試薬複合体を形成するのに適した条件下で接触させること、
d)前記c)の前に、又は同時に、又は後に、金属コロイド溶液からのナノ微粒子の形成を促すことによってSERS基質を関連付けるのに適したシード粒子と機能的に関連付けられる第2の特異結合部材を前記ターゲット分析物−捕捉試薬複合体に接触させることであって、前記第1の特異結合部材は前記第2の特異結合部材に結合する、接触させること、及び
e)前記ターゲット分析物−捕捉試薬複合体を、ラマン分光法によって前記分析物−捕捉試薬複合体に関連付けられる特異性を検出するのに適した電磁放射と接触させること
を含む方法。 - 前記シード粒子は、金、Ag、Cu、Pt、Ag/Au、Pt/Au、Cu/Auコアシェル及び合金粒子から成るグループから選択される、請求項15に記載の方法。
- 前記ターゲット分析物及び前記第1の特異結合部材は間接的に結合することによって関連付けられる、請求項15に記載の方法。
- 方法であって、
a)第1の特異結合部材と関連付けられるターゲット分析物を配設することと、
b)固体基質に結合される捕捉試薬を配設すること、
c)前記a)の前記ターゲット分析物を、前記b)の前記捕捉試薬に、ターゲット分析物−捕捉試薬複合体を形成するのに適した条件下で接触させること、
d)前記c)の前に、又は同時に、又は後に、金属コロイド溶液からのナノ微粒子の形成を促すことによってSERS基質を関連付けるのに適したシード粒子と機能的に関連付けられる第2の特異結合部材を前記ターゲット分析物−捕捉試薬複合体に接触させることであって、前記第1の特異結合部材は前記第2の特異結合部材に結合する、接触させること、及び
e)前記SERS基質をラマン標識と接触させること、及び
f)前記ターゲット分析物−捕捉試薬複合体を、ラマン分光法によって前記分析物−捕捉試薬複合体に関連付けられる特異性を検出するのに適した電磁放射と接触させること
を含む方法。 - 前記シード粒子は、金、Ag、Cu、Pt、Ag/Au、Pt/Au、Cu/Auコアシェル及び合金粒子から成るグループから選択される、請求項18に記載の方法。
- 前記ターゲット分析物及び前記第1の特異結合部材は間接的に結合することによって関連付けられる、請求項18に記載の方法。
- 試験キットであって、
a)ターゲット分析物に付着させるのに適した少なくとも1つの第1の特異結合部材を含む容器と、
b)前記第1の特異結合部材に結合する少なくとも1つの第2の特異結合部材を含む容器であって、該第2の特異結合部材は、金属コロイド溶液からのナノ微粒子の形成を促すことによって表面増強ラマン散乱(SERS)基質の形成を触媒するのに適したシード粒子を含み、SERS効果を与えるように該SERS基質を活性化することができる、容器と、
c)一連の捕捉試薬を含む固体基質を含む組成物であって、該複数の試薬はラマン標識を含む、組成物と、及び
d)銀、金又は銅染色剤から成るグループから選択されるSERS基質を含む容器と
を備える、試験キット。 - 前記第1の特異結合部材又は前記第2の特異結合部材は、DNA,RNA、抗体、抗原、ポリペプチド又は炭水化物である、請求項21に記載の試験キット。
- 前記第1の特異結合部材又は前記第2の特異結合部材はビオチンである、請求項21に記載の試験キット。
- 前記第1の特異結合部材又は前記第2の特異結合部材はアビジンである、請求項21に記載の試験キット。
- 前記ラマン標識は、400未満の分子量を有する分子である、請求項21に記載の試験キット。
- 前記シード粒子は、金、Ag、Cu、Pt、Ag/Au、Pt/Au、Cu/Auコアシェル及び合金粒子から成るグループから選択される、請求項21に記載の試験キット。
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