JP2017217617A - 流路デバイス - Google Patents
流路デバイス Download PDFInfo
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- JP2017217617A JP2017217617A JP2016114704A JP2016114704A JP2017217617A JP 2017217617 A JP2017217617 A JP 2017217617A JP 2016114704 A JP2016114704 A JP 2016114704A JP 2016114704 A JP2016114704 A JP 2016114704A JP 2017217617 A JP2017217617 A JP 2017217617A
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Abstract
【解決手段】流路デバイス1は、溝23を有する基材2と、溝23を覆うように基材2に一体化される被覆材3とを備える。被覆材3における溝23に対向する部分の純水に対する接触角(θ1)と、基材2の溝部分の純水に対する接触角(θ2)との差(θ1−θ2)が、−30°以上30°以下である。
【選択図】図2
Description
溝を有する基材と、
前記溝を覆うように前記基材に一体化される被覆材と、を備え、
前記被覆材における前記溝に対向する部分の純水に対する接触角(θ1)と、前記基材の溝部分の純水に対する接触角(θ2)との差(θ1−θ2)が、−30°以上30°以下である。
前記被覆材が、流体非透過性のフィルム材と当該フィルム材に積層された接着層とを含み、前記基材と前記フィルム材とが前記接着層を介して一体化されていることが挙げられる。
前記接着層が粘着性を有することが挙げられる。
前記接着層が(メタ)アクリル系樹脂を含むことが挙げられる。
前記被覆材が、単層の流体非透過性のフィルム材からなり、前記基材と前記フィルム材とが直接一体化されていることが挙げられる。
前記基材が、(メタ)アクリル系樹脂、スチレン系樹脂、ポリカーボネート系樹脂、及びポリオレフィン系樹脂からなる群から選択される1種以上の樹脂を含むことが挙げられる。
以下の手順に従い、流路デバイス1を作製した。まず、アクリル系樹脂(デルペット70NH、旭化成株式会社製)を用いて50mm×50mm×1.5mm厚のアクリル製基板を作製し、切削機を用いて幅100μm、深さ30μmの複数本の溝23を形成して基材2とした。この基材2に純水を滴下し、自動接触角計(品番CA−Vシリーズ、協和界面科学株式会社製)を用いて接触角を測定したところ、70°であった。メタクリル酸メチル99.0重量部とアクリル酸ブチル1.0重量部とを含む樹脂を厚さ125μmのフィルム状に成型して、アクリルフィルムを得た。このアクリルフィルムの一方の主面に粘着剤(6LQ−002、大成ファインケミカル株式会社製)を塗布し、オーブンで乾燥させた。続いて、24℃の環境下で1週間静置してエイジングさせ、フィルム材31と接着層32との積層体からなる被覆材3を得た。この被覆材3の接着層32側の面に純水を滴下し、上記自動接触角計を用いて接触角を測定したところ、96°であった。その後、基材2の溝23が形成された面と被覆材3の接着層32の露出面とが対向するように両者を積層し、25℃、1MPaで3秒間加圧して接着一体化させ、マルチチャンネルの流路デバイス1を得た。
メタクリル酸メチル90.0重量部とアクリル酸ブチル10.0重量部とを含む樹脂からなるアクリルフィルムを用い、粘着剤を除いた被覆材と実施例1記載の基材を77度、4MPa、40秒間加圧して一体化させたマルチチャンネルの流路デバイス1を得た。なお、基材2に対する純水の接触角は70°であり、フィルム材31に対する純水の接触角は85°であった。
アクリルフィルムをメタクリル酸メチル99.5重量部とアクリル酸ブチル0.5重量部に変更した以外は実施例2と同様にして流路デバイス1を得た。なお、基材2に対する純水の接触角は70°であり、フィルム材31に対する純水の接触角は66°であった。
粘着剤を変更(5296、トーヨーケム株式会社製)し、エイジング後に120秒間のエキシマ処理を施した点以外は実施例1と同様にして流路デバイス1を得た。なお、基材2に対する純水の接触角は70°であり、接着層32に対する純水の接触角は69°であった。
粘着剤を変更(5296、トーヨーケム株式会社製)し、粘着剤100wt%に対して、親水化剤(1SX−1096A、大成ファインケミカル株式会社製)を2.5wt%添加した以外は実施例1と同様にして流路デバイス1を得た。なお、基材2に対する純水の接触角は70°であり、接着層32に対する純水の接触角は60°であった。
粘着剤100wt%に対する親水化剤(1SX−1096A、大成ファインケミカル株式会社製)の添加量を3.5wt%とした以外は実施例5と同様にして流路デバイスを得た。なお、基材2に対する純水の接触角は70°であり、接着層32に対する純水の接触角は41°であった。
基材をポリカーボネート樹脂(ユーピロンH−4000、三菱エンジニアリングプラスチック株式会社製)に変更した以外は実施例1と同様にして流路デバイスを得た。なお、基材2に対する純水の接触角は85°であり、接着層32に対する純水の接触角は96°であった。
粘着剤を変更(5296、トーヨーケム株式会社製)した以外は実施例1と同様にして流路デバイスを得た。なお、基材2に対する純水の接触角は70°であり、接着層32に対する純水の接触角は104°であった。
粘着剤を変更(5296、トーヨーケム株式会社製)し、粘着剤100wt%に対して、親水化剤(1SX−1096A、大成ファインケミカル株式会社製)を5.0wt%添加した以外は実施例1と同様にして流路デバイスを得た。なお、基材2に対する純水の接触角は70°であり、接着層32に対する純水の接触角は11°であった。
各試験例において得られた流路デバイス1の各チャンネルについて、毛細管現象によって流路内を純水で満たし、各チャンネルにおける気泡の発生の有無を、光学顕微鏡にて観察した。50μm以上のサイズの気泡の発生がどのチャンネルにおいても確認されなければ「〇」とし、上記サイズの気泡の発生がいずれかのチャンネルにおいて確認されると「×」とした。
各実施例及び各比較例において得られた流路デバイスの各流路形状を、レーザー変位計を用いて測定した。流路デバイスの流路高さが28.5μm以上30.0μm未満である場合は「◎」、24.0μm以上28.5μm未満である場合は「○」(やや変形しているが、製品として使用可能)とした。これらの結果を以下に示す。
2 基材
3 被覆材
23 溝
31 フィルム材
32 接着層
Claims (6)
- 溝を有する基材と、
前記溝を覆うように前記基材に一体化される被覆材と、を備え、
前記被覆材における前記溝に対向する部分の純水に対する接触角(θ1)と、前記基材の溝部分の純水に対する接触角(θ2)との差(θ1−θ2)が、−30°以上30°以下である流路デバイス。 - 前記被覆材が、流体非透過性のフィルム材と当該フィルム材に積層された接着層とを含み、前記基材と前記フィルム材とが前記接着層を介して一体化されている請求項1に記載の流路デバイス。
- 前記接着層が粘着性を有する請求項2に記載の流路デバイス。
- 前記接着層が(メタ)アクリル系樹脂を含む請求項2又は3に記載の流路デバイス。
- 前記被覆材が、単層の流体非透過性のフィルム材からなり、前記基材と前記フィルム材とが直接一体化されている請求項1に記載の流路デバイス。
- 前記基材が、(メタ)アクリル系樹脂、スチレン系樹脂、ポリカーボネート系樹脂、及びポリオレフィン系樹脂からなる群から選択される1種以上の樹脂を含む請求項1から5のいずれか一項に記載の流路デバイス。
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JPWO2020090581A1 (ja) * | 2018-10-30 | 2021-09-24 | アルプスアルパイン株式会社 | 流路プレート、分析装置及び分析方法 |
JP7123160B2 (ja) | 2018-10-30 | 2022-08-22 | アルプスアルパイン株式会社 | 流路プレート、分析装置及び分析方法 |
US11933716B2 (en) | 2018-10-30 | 2024-03-19 | Alps Alpine Co., Ltd. | Flow path plate, analysis apparatus, and analysis method |
WO2020175264A1 (ja) * | 2019-02-27 | 2020-09-03 | 凸版印刷株式会社 | マイクロ流体デバイスおよび試料分析方法 |
JPWO2021006028A1 (ja) * | 2019-07-08 | 2021-01-14 | ||
JP7316286B2 (ja) | 2019-07-08 | 2023-07-27 | 積水化学工業株式会社 | 送液方法 |
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