JP7377301B2 - フォトニック結晶ベースのセンサ、試験装置、センサの形成方法、センサを使用する方法 - Google Patents
フォトニック結晶ベースのセンサ、試験装置、センサの形成方法、センサを使用する方法 Download PDFInfo
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- JP7377301B2 JP7377301B2 JP2022041028A JP2022041028A JP7377301B2 JP 7377301 B2 JP7377301 B2 JP 7377301B2 JP 2022041028 A JP2022041028 A JP 2022041028A JP 2022041028 A JP2022041028 A JP 2022041028A JP 7377301 B2 JP7377301 B2 JP 7377301B2
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- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
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- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
- G01N21/7703—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator using reagent-clad optical fibres or optical waveguides
- G01N21/7746—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator using reagent-clad optical fibres or optical waveguides the waveguide coupled to a cavity resonator
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- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B6/12007—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer
- G02B6/12009—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer comprising arrayed waveguide grating [AWG] devices, i.e. with a phased array of waveguides
- G02B6/12011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer comprising arrayed waveguide grating [AWG] devices, i.e. with a phased array of waveguides characterised by the arrayed waveguides, e.g. comprising a filled groove in the array section
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- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/50—Containers for the purpose of retaining a material to be analysed, e.g. test tubes
- B01L3/502—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures
- B01L3/5027—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures by integrated microfluidic structures, i.e. dimensions of channels and chambers are such that surface tension forces are important, e.g. lab-on-a-chip
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- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
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- G02B6/29346—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by wave or beam interference
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- Investigating Or Analysing Materials By Optical Means (AREA)
Description
導波路は、第1のフォトニック結晶導波路に沿って異なる幅(例えば、導波路のいずれかの側の穴の内縁間の距離)を有し得る。
図7A、7Bおよび7Cを参照すると、スロットなしフォトニック導波路29の第1、第2および第3の空洞モード分布311、312、313が示されている。
第1の多重化バイオセンサ50は、スロット付きフォトニック導波路52を含む第1の部分51を備える。スロット付きフォトニック導波路52は、前述のスロット付きフォトニック結晶導波路9(図1)と同様の構造を有する。スロット付きフォトニック結晶導波路52は、誘電体層55内の空気穴54を含むフォトニック結晶53を含み、これは、クラッド層56上に支持され、次に、基板(図示せず)上に支持され、フォトニック中の導波路57は、結晶53、および導波路57の中央に沿って走る緩やかに先細りの細長いスロット58を有する。第1の部分51はまた、それぞれの生体分子材料の一連の重なるストリップ591、592、593を含み、前述の方法と同様の方法で、それぞれの空洞601、602、603を形成するスロット付きフォトニック導波路52である。
インキュベーション後、サンプルを超音波浴を備えたPBSバッファーで洗浄して、結合していないバイオプローブ(ssDNAなど)を除去し、超純水に5分間放置して、表面に残っているすべてのOH基をブロックする。
図20および21には、第2の多重化バイオセンサ150が示されている。
第2の多重化バイオセン150は、前述の第1の多重化バイオセンサ50(図12)と同様である。特に、第2の多重化バイオセンサ150は、導波路の幅は異なるが、第1の多重化バイオセンサ50(図12)の第2の部分61(図12)と実質的に同じである第2の部分161を有する。
第1に、第1の部分151は、スロットが使用され得るが、スロット化されていないフォトニック導波路152を有する。
用途
本明細書に記載のデバイスは、シリコンベースのフォトニックチップ上の生体分子の検出および定量化を可能にする。ウイルス抗原などの病原体や、がん細胞から分泌される特定の酵素を検出することができる。シリコンは不活性であるため、血液サンプルや尿などの腐食性溶液を分析できる。
前述の実施形態に様々な修正を加えることができることが理解されよう。そのような変更は、フォトニックバイオセンサおよびその構成部品の設計、製造、および使用において既に知られており、本明細書で既に説明した機能の代わりにまたはそれに加えて使用できる同等および他の機能を含み得る。一実施形態の特徴は、別の実施形態の特徴によって置き換えられるか、または補足され得る。
Claims (17)
- 誘電体材料層中に設けられた複数の穴を有するフォトニック結晶と、前記穴の欠如によって前記フォトニック結晶中に形成された導波路と、を有するフォトニック結晶導波路と、
前記フォトニック結晶導波路の間隙を横断するように前記フォトニック結晶導波路上に配置され、ストリップキャビティを形成する少なくとも1つの、生体分子のストリップと、を備え、
前記少なくとも1つのストリップはそれぞれの分析物の存在を感知するための材料のそれぞれの層を含む少なくとも1つを含み、
前記フォトニック結晶導波路の前記導波路に沿って設けられたスロットを備え、
前記ストリップがそれぞれ10から100nmの間の厚さを有することを特徴とするセンサ。 - 前記スロットは、第1のフォトニック結晶導波路に沿って異なる幅を有する、請求項1に記載のセンサ。
- 前記フォトニック結晶導波路は第1のフォトニック結晶導波路であり、少なくとも1つのストリップが一連のストリップであり、
前記センサは、さらに、第1のフォトニック結晶導波路に沿って走り、前記ストリップキャビティが結合されるように配置された第2のフォトニック結晶導波路を含む、請求項1または請求項2に記載のセンサ。 - 誘電体材料層中に設けられた複数の穴を有するフォトニック結晶と、前記穴の欠如によって前記フォトニック結晶中に形成された導波路と、を有するフォトニック結晶導波路と、
第1のフォトニック結晶導波路の間隙を横断するように前記第1のフォトニック結晶導波路上に配置され、ストリップキャビティを形成する少なくとも一連の、生体分子のストリップと、を備え、
前記ストリップのそれぞれは、それぞれの分析物の存在を感知するための材料のそれぞれの層を含む少なくとも1つを含み、
第1のフォトニック結晶導波路に沿って走り、前記ストリップキャビティが結合されるように配置された第2のフォトニック結晶導波路を含み、
前記ストリップがそれぞれ10から100nmの間の厚さを有することを特徴とするセンサ。 - 前記第1のフォトニック結晶導波路がスロットなしのフォトニック結晶導波路である、請求項4に記載のセンサ。
- 前記第2のフォトニック結晶導波路が、前記第1のフォトニック結晶導波路の片側に沿って設けられ、前記第1のフォトニック結晶導波路および前記第2のフォトニック結晶導波路が共通のフォトニック結晶部分を共有する、請求項3から5のいずれか1項に記載のセンサ。
- 外部光源からの光を前記第2のフォトニック結晶導波路に結合するために、前記第2のフォトニック結晶導波路の第1の端部に配置された第1のカプラと、
前記第2のフォトニック結晶導波路からの光を外部検出器に結合するために、前記第2のフォトニック結晶導波路の第2の端部に配置された第2のカプラと、を有する、請求項3から6のいずれか1項に記載のセンサ。 - 前記第1のカプラと前記第2のフォトニック結晶の第1の端部との間に挿入された第1の遷移領域と、
前記第2のフォトニック結晶導波路の第2の端部と前記第2のカプラとの間に挿入された第2の遷移領域と、をさらに有する請求項7に記載のセンサ。 - 前記導波路が、前記第1のフォトニック結晶導波路に沿って異なる幅を有する、請求項3または4に記載のセンサ。
- 前記第1のフォトニック結晶導波路の片側において、フォトニック結晶が少なくとも1つのギャップによって少なくとも2つのセクションに分割される、請求項3または4に記載のセンサ。
- 各ストリップがそれぞれ1から10単層の間の厚さを有する、請求項1、請求項2から10のいずれか1項に記載のセンサ。
- 前記ストリップが、それぞれのキャビティを作るするための第1の層と、その上に配置された第2の層と、を備える、請求項1に記載のセンサ。
- 請求項1、請求項2から12のいずれか1つに記載の前記センサが共通の基板に支持されたアレイと、流体サンプルを前記センサに送るするためのマイクロ流体構造と、を備える試験装置。
- テンプレートデバイスを提供する工程を有し、
前記テンプレートデバイスは、誘電体材料層中に設けられた複数の穴を有するフォトニック結晶と、前記穴の欠如によって前記フォトニック結晶中に形成された導波路と、を有するフォトニック結晶導波路と、前記フォトニック結晶導波路の前記導波路に沿って設けられたスロットと、を有し、
少なくとも1つの、生体分子のストリップを前記フォトニック結晶導波路に印刷する工程を有し、
前記フォトニック結晶導波路の間隙を横断するように前記フォトニック結晶導波路上に配置され、ストリップキャビティを形成する少なくとも1つのストリップと、を備え、前記少なくとも1つのストリップはそれぞれの分析物の存在を感知するための材料のそれぞれの層を含む少なくとも1つを含み、
前記ストリップがそれぞれ10から100nmの間の厚さを有することを特徴とするセンサの形成方法。 - 流体サンプルを、請求項1から12のいずれか1つに記載のセンサ、または請求項13に記載の試験装置に曝す、センサを使用する方法。
- 光の入力側と出力側の両方に複数の同心の半リング形状の導波路を含む、請求項1に記載のセンサ。
- 前記導波路が、異なる波長にそれぞれ設計されている、請求項9に記載のセンサ。
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