“Drop-slip” bulk sample flow on fully inkjet-printed microfluidic paper-based analytical device

Terence G. Henares, Kentaro Yamada, Shunsuke Takaki, Koji Suzuki, Daniel Citterio

研究成果: Article査読

25 被引用数 (Scopus)

抄録

With “drop-slip” (DS) bulk liquid flow on a fully inkjet-printed microfluidic paper-based analytical device (μPAD), a new method for the rapid transport of sample liquid is presented. The main driving force for DS flow is the slip flow of fluid on wetted porous cellulose acting as a lubricated surface, which is predominantly influenced by the width of the hydrophilic channel and the surface tension of the sample liquid. The application of DS flow is demonstrated by a model colorimetric metal assay (Zn2+, Cu2+, Fe2+) with inkjet-deposited indicators on a μPAD with optimized channel dimensions of 2 mm width and 110 μm height. The presence of bulk liquid on the entire device does not result in any mixing of assay components across adjacent sensing regions connected by microfluidic channels. DS flow is a useful alternative sample liquid transport method for μPADs, allowing to perform multiple fully independent assays with enlarged sample volumes without requiring any significant variation in device design and fabrication.

本文言語English
ページ(範囲)1129-1137
ページ数9
ジャーナルSensors and Actuators, B: Chemical
244
DOI
出版ステータスPublished - 2017

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 器械工学
  • 凝縮系物理学
  • 表面、皮膜および薄膜
  • 金属および合金
  • 電子工学および電気工学
  • 材料化学

フィンガープリント

「“Drop-slip” bulk sample flow on fully inkjet-printed microfluidic paper-based analytical device」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル