JP6719582B2 - 標的遺伝子の検出のための微小流動装置 - Google Patents
標的遺伝子の検出のための微小流動装置 Download PDFInfo
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Description
10:流動管
110:サンプルチャンバー
120,120a、120b、120c、120d、120e:負圧チャンバー
130:マイクロチャネル
131:第1の流動チャネル
132a、132b、132c、132d、132e:第2の流動チャネル
30,140,140a、140b、140c、140d、140e:微小ビーズパッキング部
32,141:微小ビーズ
142:メッシュ
33,143:プローブリンカー
144:空隙
31,145:パッキング導管
151:撹拌機
152:マグネット
Claims (14)
- 標的遺伝子の検出のための微小流動装置において、
試料溶液が収容された試料容器に一側が込められて毛細管現象により前記試料溶液が流動する複数の流動管と、
それぞれの前記流動管の一側の内部に前記試料溶液の流動経路上に配置される微小ビーズパッキング部を含み、
それぞれの前記微小ビーズパッキング部は、
前記試料溶液の流動経路の一部を形成するように、前記流動管上に配置されるパッキング導管と、
相互間に空隙が形成されるように前記パッキング導管内に相互密着するように収容される複数の微小ビーズと、
それぞれの前記微小ビーズの表面に形成されるプローブリンカーを含み、
前記プローブリンカーは、前記試料溶液内の標的遺伝子との相補的結合を介して増幅され、前記標的遺伝子を検出して、
前記標的遺伝子が前記プローブリンカーと相補的結合を介して増幅され、前記空隙が詰まったり前記空隙のサイズが減少して前記標的遺伝子の検出かどうかが確認可能であることを特徴とする標的遺伝子の検出のための微小流動装置。 - 前記試料容器に収容される前記試料溶液の初期容量は、毛細管現象により前記試料溶液が前記流動管を通して前記微小ビーズパッキング部まで到達することができる量に設定され、
前記微小ビーズパッキング部まで到達した前記試料溶液内の前記標的遺伝子と前記プローブリンカーとの間の相補的結合を介した増幅により前記空隙が詰まったり、前記空隙のサイズが減少され、
前記試料容器に試料溶液をさらに投入するときに、前記試料溶液が、前記微小ビーズパッキング部の反対側への流動の可否と、前記試料溶液の最終到達距離のうち少なくとも一つにより前記標的遺伝子を検出することを特徴とする請求項1に記載の標的遺伝子の検出のための微小流動装置。 - それぞれの前記微小ビーズパッキング部の前記プローブリンカーは、互いに相異なる標的遺伝子を検出するように備わることを特徴とする請求項1に記載の標的遺伝子の検出のための微小流動装置。
- 標的遺伝子の検出のための微小流動装置において、
試料溶液を貯留するサンプルチャンバーと、
前記サンプルチャンバーと連通して前記試料溶液が流動するマイクロチャネルと、
前記マイクロチャネルの前記試料溶液の流動経路上に配置される微小ビーズパッキング
部を含み、
前記微小ビーズパッキング部は、
前記試料溶液の流動経路の一部を形成するように、前記マイクロチャネル上に配置されるパッキング導管と、
相互間に空隙が形成されるように前記パッキング導管内に相互密着するように収容される複数の微小ビーズと、
それぞれの前記微小ビーズの表面に形成されるプローブリンカーを含み、
前記プローブリンカーは、前記試料溶液内の標的遺伝子との相補的結合を介して増幅され、前記標的遺伝子を検出して、
前記標的遺伝子が前記プローブリンカーと相補的結合を介して増幅され、前記空隙が詰まったり前記空隙のサイズが減少して前記標的遺伝子の検出かどうかが確認可能であることを特徴とする標的遺伝子の検出のための微小流動装置。 - 前記プローブリンカーと前記標的遺伝子との間の相補的結合を介した増幅により前記空隙が詰まったり、前記空隙のサイズが減少され、前記試料溶液の最終到達距離、前記最終到達距離までの到達時間、前記試料溶液の流動速度が可変され、前記最終到達距離、前記到達時間及び前記流動速度の中の少なくとも一つにより前記標的遺伝子を検出することを特徴とする請求項4に記載の標的遺伝子の検出のための微小流動装置。
- 前記マイクロチャネルと連通するように前記サンプルチャンバーの反対側に形成され、
前記マイクロチャネルを通して前記試料溶液が流動するように、外部からの負圧が印加される負圧チャンバーをさらに含み、
前記プローブリンカーと前記標的遺伝子との間の相補的結合を介した増幅により前記空隙が詰まったり、前記空隙のサイズが減少され、前記負圧チャンバーを通して印加される負圧の変化に応じて前記標的遺伝子を検出することを特徴とする請求項4に記載の標的遺伝子の検出のための微小流動装置。 - 前記サンプルチャンバー、前記マイクロチャネル及び前記微小ビーズパッキング部は複数個が並列に形成され、
前記微小ビーズパッキング部のいずれかに収容された前記微小ビーズには、前記プローブリンカーが備わらないことを特徴とする請求項4に記載の標的遺伝子の検出のための微小流動装置。 - 前記サンプルチャンバー、前記マイクロチャネル及び前記微小ビーズパッキング部は複数個が並列に形成され、
それぞれの前記微小ビーズパッキング部の前記プローブリンカーは、互いに相異なる標的遺伝子を検出するように備わることを特徴とする請求項4に記載の標的遺伝子の検出のための微小流動装置。 - 前記マイクロチャネルは、
前記サンプルチャンバーと接続される第1の流動チャネルと、
前記第1の流動チャネルから分岐される複数の第2の流動チャネルを含み、
前記微小ビーズパッキング部は複数個備わって、それぞれの前記第2の流動チャネルに配置され、
それぞれの前記微小ビーズパッキング部に収容される前記微小ビーズは、互いに相異なる直径を有するように備わることを特徴とする請求項4に記載の標的遺伝子の検出のための微小流動装置。 - 前記微小ビーズの直径は、0.1μm乃至100μmの範囲内で、前記標的遺伝子の種類に応じて前記標的遺伝子が前記空隙の通過可能なサイズに設定されることを特徴とする請求項4に記載の標的遺伝子の検出のための微小流動装置。
- 前記微小ビーズパッキング部は、
前記パッキング導管の両側にそれぞれ設けられ、前記微小ビーズの損失を防止するメッシュをさらに含むことを特徴とする請求項4に記載の標的遺伝子の検出のための微小流動装置。 - 前記プローブリンカーは、
前記微小ビーズの表面にコーティングされるコーティング部と、
前記コーティング部に結合されるプライマーと、
前記プライマーと相補的に結合するテンプレートを含み、
前記テンプレートは、
前記標的遺伝子と相補的に結合する第1の結合部位と、
前記プライマーと相補的に結合する第2の結合部位と、
ダンベル形状を形成するためのテンプレート内の相補的な第3の結合部位を含み、
前記第1の結合部位は、前記テンプレートの両端に分離して形成され、前記第2の結合部位は分離して形成された前記第3の結合部位の間に形成されることを特徴とする請求項1又は請求項4に記載の標的遺伝子の検出のための微小流動装置。 - 前記コーティング部は5−ヒドロキシドーパミン塩酸、ノルエピネフリン、エピネフリン、パイロガルロルアミン、DOPA(3,4−Dihydroxyphenylalanine)、カテキン、タンニン類、パイロガルロル、パイロカテコール、ヘパリン−カテコール、キトサン−カテコール、ポリエチレングリコール−カテコール、ポリエチレンイミン−カテコール、ポリメチルメタクリレート−カテコール、ヒアルロン酸−カテコール、ポリリシン−カテコール(polylysine−catechol)、およびポリリシン(polylysine)からなる群から選択された一つ以上を含むことを特徴とする請求項12に記載の標的遺伝子の検出のための微小流動装置。
- 前記プライマーは、チオール(thiol)、アミン(amine)、ヒドロキシル(hydroxyl)、カルボキシル(carboxyl)、イソチオシアネート(isothiocyanate)、NHSエステル、アルデヒド(aldehyde)、エポキシド(epoxide)、カルボナート(Carbonate)、HOBtエステル、グルタルアルデヒド(Glutaraldehyde)、カルバメート(carbamate)、イミダゾールカルバメート(imidazole carbamate)、マレイミド(maleimide)、アジリジン(aziridine)、スルホン(sulfone)、ビニールスルホン(vinylsulfone)、ヒドラジン(hydrazine)、フェニルアジド(phenyl azide)、ベンゾフェノン(benzophenone)、アントラキノン(anthraquinone)、およびジエン(Diene)基からなる群から選択された一つ以上に末端が変形されたことを特徴とする請求項12に記載の標的遺伝子の検出のための微小流動装置。
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