JP4694889B2 - バイオチップ用基板及びバイオチップ - Google Patents
バイオチップ用基板及びバイオチップ Download PDFInfo
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- JP4694889B2 JP4694889B2 JP2005150330A JP2005150330A JP4694889B2 JP 4694889 B2 JP4694889 B2 JP 4694889B2 JP 2005150330 A JP2005150330 A JP 2005150330A JP 2005150330 A JP2005150330 A JP 2005150330A JP 4694889 B2 JP4694889 B2 JP 4694889B2
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31678—Of metal
Description
板厚1.2mmの高純度Al-Mg合金板(Mg含有量4重量%)を26x76mm角にプレスで打ち抜いた後に、340℃の雰囲気下で複数枚を積み重ねて加圧焼鈍を行い、歪みを取り去ると共に平坦度を5μm以下にした。その後、端面とチャンファの加工(具体的には、角度45°、a寸法0.2mm)を行い、25x75mmの平板を作製した。次いで、スポンジ砥石を貼ったスピードファム社製の両面研削機16Bを用いて研削加工を行い、板厚0.98mm、平行度1μm以下とした。続いて、この平板に順に脱脂、エッチング、酸活性処理、ジンケート処理を施した。具体的には、上村製アルカリ脱脂液AD-68F(50℃)に5分間、硫酸・リン酸系エッチング液AD-101F(80℃)に2分間、硝酸活性液(20℃)に1分間、ジンケート液AD-301F3X(20℃)に30秒間、順次、浸セキ処理を行って前処理を施した。さらにその後に、メルテック社製無電解NiP液NI-422(90℃)に2時間、浸セキして両面に各12μm厚のめっき膜を形成した。更に、これをスピードファム社製の両面研磨機16Bにコロイダルシリカ砥粒を用いて両面を各2μm研磨し、超平滑基板とした。基板は板厚1.00mm、表面粗さRaが0.35nmであった。なお、平坦度、平行度及びRaは、それぞれ、溝尻製平坦時計FT-50LD、ランクテーラーホブソン製真円度測定機タリロンド、ランクテーラーホブソン製触針式粗さ計タリステップを用いて測定した。
バイオチップに固定化するペプチドとして、次の配列を有する蛍光標識ペプチドを化学合成した。Ac-Cys-Gly-Lys(FAM)-Gly-Leu-Lys-Lys-Leu-Leu-Lys-Leu-Leu-Lys-Lys-Leu-Leu-Lys-Leu-Lys(TAMRA)-Gly-NH2
ここで、FAM及びTAMRAは、いずれも蛍光色素である。FAMを光励起すると、FAMとTAMRA間の距離に応じて、FAMの励起エネルギーがTAMRAに移動し、TAMRAの蛍光が発する(蛍光共鳴エネルギー移動、FRET、蛍光という)。タンパク質が結合するとペプチドのへリックス構造が固定され、FRET蛍光が増大する。FRETは励起状態にある供与体分子(この場合FAM)から基底状態にある受容体分子(この場合TAMRA)へのエネルギー移動により受容体からの蛍光が観測される現象である。このペプチドは、タンパク質であるカルモジュリン(CaM)と特異的に結合することが知られているが、結合するとFAMとTAMRAの距離が小さくなる。CaMの量が多いほど測定されるTAMRAからの蛍光強度が大きくなり結合の定量が可能である。
Claims (4)
- アルミニウム又はアルミニウム合金製の基板本体と、該基板本体上に積層され、表面が研磨された無電解NiPめっき層と、該NiPめっき層上に積層された、活性基を有する炭素層とを具備するバイオチップ用基板。
- 前記活性基が、前記炭素に共有結合された、アミノ基、アルデヒド基、カルボキシル基、スルフヒドリル基若しくはエポキシ基又は前記炭素層に非共有結合的に結合されたポリリジンである請求項1記載の基板。
- 前記炭素層が、グラファイト、ダイヤモンド、ダイヤモンドライク炭素又はアモルファス炭素から成る請求項1又は2記載の基板。
- 請求項1〜3のいずれか1項に記載の基板上に、生体関連物質を固定化したバイオチップ。
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JP2005150330A JP4694889B2 (ja) | 2005-05-24 | 2005-05-24 | バイオチップ用基板及びバイオチップ |
EP20060756519 EP1887364B1 (en) | 2005-05-24 | 2006-05-24 | Substrate for biochip and biochip |
US11/915,366 US8455400B2 (en) | 2005-05-24 | 2006-05-24 | Substrate for biochip and biochip |
PCT/JP2006/310313 WO2006126568A1 (ja) | 2005-05-24 | 2006-05-24 | バイオチップ用基板及びバイオチップ |
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WO2010100729A1 (ja) * | 2009-03-04 | 2010-09-10 | 三菱電機株式会社 | 内燃機関の制御装置 |
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EP2749884B1 (en) | 2011-08-23 | 2017-07-12 | Toyo Aluminium Kabushiki Kaisha | Biochip substrate and method for producing same |
JP6127520B2 (ja) | 2013-01-09 | 2017-05-17 | 日本軽金属株式会社 | バイオチップ用基板及びその製造方法 |
JP6432052B2 (ja) * | 2013-08-28 | 2018-12-05 | 国立大学法人九州大学 | 生体分子親和性含フッ素高分岐ポリマー及び生体分子認識表面 |
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US11014088B2 (en) * | 2016-03-09 | 2021-05-25 | The Board Of Regents Of The University Of Texas System | Sensitive ELISA for disease diagnosis on surface modified poly(methyl methacrylate) (PMMA) microfluidic microplates |
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US8455400B2 (en) | 2013-06-04 |
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WO2006126568A1 (ja) | 2006-11-30 |
EP1887364A4 (en) | 2012-04-04 |
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