Communication—Evaporation Driven Micro/Nanofluidic Pumping Device. Issue 5 (1st January 2018)

• Record Type: Journal Article
• Authors: Wang, Chenxi; Wang, Te; Mawatari, Kazuma; Kitamori, Takehiko
• Is Part Of: Journal of the Electrochemical Society. Volume 165:Issue 5(2018)
• Page Start: B184
• Page End: B186
• Publication Date: 2018-01-01
• Subjects: Microfluidics -- Miniaturization -- Nanofluidics; Electrochemistry -- Periodicals; 541.3705
• DOI: 10.1149/2.0101805jes
• Languages: English
• ISSNs: 0013-4651

Abstract

Abstract : A compact portable nanofluidic pump that enables precise manipulation of ultra-small amount of liquid is highly desirable for the trend in miniaturization. Here we develop an integrated micro/nanofluidic pumping device utilizing nanopillar structures with diminishing intervals and locally controlled evaporation. A continuous and steady flow rate of 2.7 pL/s was achieved for more than 12 h without external mechanical power source. The liquid transports in the nanofluidic channels were controllable by adjusting the temperature of evaporation surface. The picoliter-scale flow rates meet the demands for performing nanofluidic immunoassays and other interdisciplinary applications.