JP6713601B2 - 分析デバイス - Google Patents
分析デバイス Download PDFInfo
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- JP6713601B2 JP6713601B2 JP2017508280A JP2017508280A JP6713601B2 JP 6713601 B2 JP6713601 B2 JP 6713601B2 JP 2017508280 A JP2017508280 A JP 2017508280A JP 2017508280 A JP2017508280 A JP 2017508280A JP 6713601 B2 JP6713601 B2 JP 6713601B2
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- microfluidic device
- antibody
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Classifications
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- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
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Description
(1)基板には少なくとも1つ以上の流路が設けられ、
個々の流路内には、
光硬化した親水性樹脂中に混合された一種類の特異的結合試薬又は一種類の検体が架橋により保持された微小構造物が少なくとも一つ以上配置されているマイクロ流体デバイス。
(2)前記(1)のマイクロ流体デバイスであって、
前記複数の微小構造物には夫々異なる特異的結合試薬及び/又は検体が架橋により保持されているマイクロ流体デバイス。
(3)前記(1)又は(2)記載のマイクロ流体デバイスであって、
前記特異的結合試薬が、抗体、抗原、アビジン、ストレプトアビジン、ビオチンのいずれか1つ以上であるマイクロ流体デバイス。
(4)前記(1)〜(3)のいずれか1記載のマイクロ流体デバイスであって、
前記検体が、細胞、細胞塊、細胞膜、オルガネラ、エクソソームを含むものであるマイクロ流体デバイス。
(5)前記(1)〜(4)のいずれか1記載のマイクロ流体デバイスと
検出対象に特異的に結合する標識された試薬を含む分析キット。
(6)前記(5)記載の分析キットであって、
前記標識された試薬が単一の光学系によって検出可能である分析キット。
(7)前記(1)〜(4)のいずれか1記載のマイクロ流体デバイスの分析に用いるシステムであって、
測定を実行するための測定開始手段と、
マイクロ流体デバイス上をスキャンしながら蛍光強度を測定する単一の蛍光を検出するための検出手段と、
蛍光強度を数値として表示する表示手段とを備えるマイクロ流体デバイス用分析システム。
(8)マイクロ流体デバイスを製造する方法であって、
流路を少なくとも1つ含む基板を準備する基板準備工程、
一種類の特異的結合試薬又は一種類の検体と親水性光硬化性樹脂を混合した溶液を前記流路内に充填する充填工程、
前記流路内に充填された前記親水性光硬化性樹脂の一部に対してフォトマスクを用いて露光を行い樹脂を光硬化させる露光工程、
未硬化の樹脂を前記流路から洗浄除去する洗浄工程、
を含むマイクロ流体デバイス製造方法。
(9)前記(8)記載のマイクロ流体デバイスを製造する方法であって、
前記洗浄工程の後に、
前記特異的結合試薬又は検体とは異なる特異的結合試薬又は検体を親水性光硬化性樹脂と混合した溶液を前記流路内に充填する再充填工程、
前記流路内に充填された前記親水性光硬化性樹脂に対して、未硬化の光硬化性樹脂の存在する部位を露光可能なフォトマスクを用いて露光を行う再露光工程、
未硬化の樹脂を前記流路から洗浄除去する再洗浄工程、
再充填工程から再洗浄工程を繰り返し、複数の異なる特異的結合試薬及び/又は検体を流路内に固定するマイクロ流体デバイス製造方法。
(1)分子量400〜6000のポリエチレングリコール1モルの両末端水酸基を(メタ)アクリル酸2モルでエステル化したポリエチレングリコールジ(メタ)アクリレート類
(2)分子量200〜4000のポリプロピレングリコール1モルの両末端水酸基を(メタ)アクリル酸2モルでエステル化したポリプロピレングリコールジ(メタ)アクリレート類
(3)分子量400〜6000のポリエチレングリコール1モルの両末端水酸基をトリレンジイソシアネート、キシリレンジイソシアネート、イソホロンジイソシアネートなどのジイソシアネート化合物2モルでウレタン化し、次いで(メタ)アクリル酸2−ヒドロキシエチルなどの不飽和モノヒドロキシエチル化合物2モルを付加した不飽和ポリエチレングリコールウレタン化物
(4)分子量200〜4000のポリプロピレングリコール1モルの両末端水酸基をトリレンジイソシアネート、キシリレンジイソシアネート、イソホロンジイソシアネートなどのジイソシアネート化合物2モルでウレタン化し、次いで(メタ)アクリル酸2−ヒドロキシエチルなどの不飽和モノヒドロキシエチル化合物2モルを付加した不飽和ポリプロピレングリコールウレタン化物。
環状オレフィンポリマー(BS−X2194、住友ベークライト社製)のマイクロチップ基板(70mm×30mm×1.25mm)を用いた(図2C、写真参照。)。基板には直方体(1000μm×6500μm×50μm)のマイクロ流路が40か所設けられている。マイクロ流路の入り口、及び出口の直径は1.0mmである。
一次抗体: 抗PSA抗体(アブカム社製、ab10189、2mg/ml)
抗原: ヒトPSA(Acris Antibodies社製、P117−7)
二次抗体: 抗PSA抗体(Cell Signaling Technology社製、5365)
三次抗体: DyLight650(商標)標識ヤギ抗ウサギIgG(アブカム社製、ab96902)
一次抗体:抗CRP抗体(アブカム社製、ab136176,2mg/ml)
抗原:CRP(Acris Antibodies社製、P100−0)
二次抗体:抗CRP抗体(アブカム社製、ab31156)
三次抗体:DyLight650(商標)標識ヤギ抗ウサギIgG(アブカム社製、ab96902)
一次抗体:抗CEA抗体(アブカム社製、ab4451、2mg/ml)
抗原:ヒトCEA(R&D社製、4128-CM―050)
二次抗体:抗CEACAM5抗体(ウサギ)(アブカム社製、ab131070)
三次抗体:DyLight650(商標)標識ヤギ抗ウサギIgG(アブカム社製、ab96902)
次に、複数項目を同時に検出するデバイスを作製し検討を行った。抗CEA抗体、抗CRP抗体を1つの流路内に配置したマイクロ流体デバイスを作製した。固相化に用いた抗体、検出に用いた抗体、抗原は実施例1と同じものを用いている。
Claims (10)
- 基板には少なくとも1つ以上の流路が設けられ、
個々の流路内には、
光硬化したアジド系感光基を有する親水性樹脂中に混合されたアミノ基を含む一種類の特異的結合試薬又は一種類の検体が架橋により直接親水性樹脂に保持された微小構造物が流路側壁と間隙を設けて複数配置されているマイクロ流体デバイス。 - 請求項1記載のマイクロ流体デバイスであって、
前記微小構造物には夫々異なる特異的結合試薬及び/又は検体が直接親水性樹脂に架橋により保持されているマイクロ流体デバイス。 - 請求項1又は2記載のマイクロ流体デバイスであって、
前記特異的結合試薬が、抗体、抗原、アビジン、ストレプトアビジン、ビオチンのいずれか1つ以上であるマイクロ流体デバイス。 - 請求項1〜3のいずれか1項記載のマイクロ流体デバイスであって、
前記検体が、細胞、細胞塊、細胞膜、オルガネラ、エクソソームを含むものであるマイクロ流体デバイス。 - 請求項1〜4のいずれか1項記載のマイクロ流体デバイスと
検出対象に特異的に結合する標識された試薬を含む分析キット。 - 請求項5記載の分析キットであって、
前記標識された試薬が単一の光学系によって検出可能である分析キット。 - マイクロ流体デバイスを製造する方法であって、
流路を少なくとも1つ含む基板を準備する基板準備工程、
アミノ基を含む一種類の特異的結合試薬又はアミノ基を含む一種類の検体とアジド系感光基を有する親水性光硬化性樹脂を混合した溶液を前記流路内に充填する充填工程、
前記流路内に充填された前記親水性光硬化性樹脂の一部に流路側壁と間隙を設けて構造物が形成されるフォトマスクを用いて露光を行い、前記特異的結合試薬又は検体を直接樹脂に架橋し光硬化させる露光工程、
未硬化の樹脂を前記流路から洗浄除去する洗浄工程、
前記特異的結合試薬又は検体とは異なる特異的結合試薬又は検体を親水性光硬化性樹脂と混合した溶液を前記流路内に充填する再充填工程、
前記流路内に充填された前記親水性光硬化性樹脂に対して、未硬化の光硬化性樹脂の存在する部位に、流路側壁と間隙を設けて構造物が形成されるフォトマスクを用いて露光を行う再露光工程、
未硬化の樹脂を前記流路から洗浄除去する再洗浄工程、
再充填工程から再洗浄工程を繰り返し、複数の異なる特異的結合試薬及び/又は検体を流路内に固定するマイクロ流体デバイス製造方法。 - 基板には少なくとも1つ以上の流路が設けられ、
個々の流路内には、
光硬化したアジド系感光基を有する親水性樹脂中に混合されたアミノ基を含む一種類の特異的結合試薬又はアミノ基を含む一種類の検体が架橋により直接親水性樹脂に保持された微小構造物が流路側壁と間隙を設けて少なくとも1つ以上配置されているマイクロ流体デバイス。 - 請求項1〜4、10のいずれか1項記載のマイクロ流体デバイスであって、
前記親水性樹脂がAzide−unit Pendant Water−soluble Photopolymerであることを特徴とするマイクロ流体デバイス。 - 請求項1〜4、10、11いずれか1項記載のマイクロ流体デバイスを用いる検査方法であって、
前記マイクロ流体デバイスの流路に検体又は特異的結合試薬を満たすインキュベーション工程と、
検体又は特異的結合試薬を洗浄する洗浄工程と、
検出対象に特異的に結合する蛍光標識された標識試薬により標識する標識工程と、
前記標識試薬を洗浄する洗浄工程と、
単一の蛍光のみを検出する手段を備えた検出手段により検出する工程とを備えている検査方法。
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