JP6782218B2 - 検出装置および検出方法 - Google Patents
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Description
図3は、インフルエンザウイルスの感染機序を示す図である。
図4は、(a)はヒトの上気道に発現している糖鎖の分子構造を示す図であり、(b)はトリの上気道に発現している糖鎖の分子構造を示す図である。
図8は、実施形態の検出装置を用いてヒト感染型インフルエンザウイルスを捕捉する様子を示す模式図である。
図9は、実施形態の検出装置を用いて強毒性インフルエンザウイルスを検出する様子を示す模式図である。
図10は、実施形態の検出装置を用いてウイルスのHAが開裂したことを検出する様子を示す模式図である。
図11は、実施形態の検出装置を用いてウイルスのHAの開劣後の膜融合を検出する様子を示す模式図である。
上記手順を用いて、プローブ分子(α2,6型糖鎖)21でウイルスが固定されたことが検出されていて、かつ、FURINとTMPRSS13/MSPLとのいずれかで開裂が認められた場合には、ヒト感染型の強毒性インフルエンザ、すなわち、極めて危険な新型インフルエンザであるものと判断できる。
図18(a)は、グラフェン膜13近傍の拡大模式図である。
Claims (20)
- センサ素子と、
前記センサ素子に固定されたプローブ分子であって、検出ターゲットの表面に露出した受容体と会合するプローブ分子と、
を具備し、
前記センサ素子は、前記プローブ分子と会合し前記プローブ分子に捕捉された前記受容体が、特定のプロテアーゼによって開裂したことを検出する検出装置。 - 前記センサ素子は、電荷検出素子、表面プラズモン共鳴素子、SAW(Surface Acoustic Wave)素子、FBAR(Film Bulk Acoustic Resonator)素子、QCM(Quartz Crystal Microbalance)素子、IS-FET(Ion sensitive FET)素子、または、MEMS(Micro Electro Mechanical System)カンチレバー素子であって、
前記センサ素子は、前記受容体の開裂による前記検出ターゲットの位置の変化と、動きやすさの変化と、前記受容体の形状の変化とのいずれかを検出する請求項1記載の検出装置。 - 前記電荷検出素子は、グラフェンまたはカーボンナノチューブを含む請求項2記載の検出装置。
- 前記センサ素子の表面にリン脂質膜が被覆され、
前記センサ素子は、開裂した前記受容体の前記リン脂質膜への侵入と、前記検出ターゲットの表面膜と前記リン脂質膜との融合と、のいずれかを検出する請求項1〜3のいずれか1つに記載の検出装置。 - 前記プローブ分子が糖鎖である請求項1〜4のいずれか1つに記載の検出装置。
- 前記検出ターゲットはウイルスであり、前記受容体はスパイクタンパク質である請求項1〜5のいずれか1つに記載の検出装置。
- 前記ウイルスはインフルエンザウイルスであり、前記スパイクタンパク質はヘマグルチニンである請求項6記載の検出装置。
- 前記スパイクタンパク質を開裂させるための第1のプロテアーゼと、
前記スパイクタンパク質が、前記検出ターゲットとともに混入した第2のプロテアーゼによって開裂することを阻害するためのプロテアーゼ阻害剤と、
前記スパイクタンパク質の開裂後の膜融合を促進するためのpH調整液と、
の少なくともいずれかを前記センサ素子上に供給するための注入口を具備した請求項6記載の検出装置。 - 前記第1のプロテアーゼが、ヒトの気道以外にも存在するプロテアーゼであり、
前記プロテアーゼ阻害剤が、トリプシン阻害剤である請求項8記載の検出装置。 - 前記第1のプロテアーゼが、FURINとTMPRSS13/MSPLの少なくともいずれかを含む請求項8記載の検出装置。
- 前記第1のプロテアーゼが、トリプシンとTMPRSS2の少なくともいずれかを含む請求項8記載の検出装置。
- 前記プローブ分子が、α2,6型糖鎖とα2,3型糖鎖のいずれかである請求項1〜11のいずれか1つに記載の検出装置。
- 前記センサ素子は、前記プローブ分子が固定されたターゲット検出素子と、前記プローブ分子が固定されていない参照素子とを有する請求項1〜12のいずれか1つに記載の検出装置。
- 前記スパイクタンパク質を開裂させるための第1のプロテアーゼと、
前記スパイクタンパク質が、前記検出ターゲットとともに混入した第2のプロテアーゼによって開裂することを阻害するためのプロテアーゼ阻害剤と、
前記スパイクタンパク質の開劣後の膜融合を促進するためのpH調整液と、
の少なくともいずれかを含むゲルが前記センサ素子上に固定され、前記ゲルが水溶性である請求項6記載の検出装置。 - 前記ゲルがハイドロゲルを含む請求項14記載の検出装置。
- 前記ゲルが親水性のイオン液体を含む請求項14記載の検出装置。
- 前記イオン液体がアニオンとしてホスホネート系化合物を含む請求項16記載の検出装置。
- センサ素子に固定されたプローブ分子と会合し前記プローブ分子に捕捉された検出ターゲットの表面に露出した受容体が、特定のプロテアーゼによって開裂したことを前記センサ素子で検出する検出方法。
- 前記検出ターゲットはウイルスであり、前記受容体はスパイクタンパク質である請求項18記載の検出方法。
- 前記スパイクタンパク質を開裂させるための第1のプロテアーゼと、
前記スパイクタンパク質が、前記検出ターゲットとともに混入した第2のプロテアーゼによって開裂することを阻害するためのプロテアーゼ阻害剤と、
前記スパイクタンパク質の開裂後の膜融合を促進するためのpH調整液と、
の少なくともいずれかを前記センサ素子上に供給する請求項19記載の検出方法。
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- 2018-02-19 KR KR1020180019268A patent/KR20190056938A/ko not_active Application Discontinuation
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Cited By (2)
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JP2021036869A (ja) * | 2020-10-09 | 2021-03-11 | 株式会社東芝 | 検出装置および検出方法 |
JP7050878B2 (ja) | 2020-10-09 | 2022-04-08 | 株式会社東芝 | 検出装置および検出方法 |
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US11169151B2 (en) | 2021-11-09 |
CN109799339A (zh) | 2019-05-24 |
KR20190056938A (ko) | 2019-05-27 |
JP2019095204A (ja) | 2019-06-20 |
US20190154687A1 (en) | 2019-05-23 |
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