Development of a microfluidic design for an automatic lab-on-chip operation

Nitipon Puttaraksa, Harry J. Whitlow, Mari Napari, Leena Meriläinen, Leona Gilbert

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


Simple and easy to use are the keys for developing lab-on-chip technology. Here, a new microfluidic circuit has been designed for an automatic lab-on-chip operation (ALOCO) device. This chip used capillary forces for controlled and precise manipulation of liquids, which were loaded in sequence from different flowing directions towards the analysis area. Using the ALOCO design, a non-expert user is able to operate the chip by pipetting liquids into suitable inlet reservoirs. To test this design, microfluidic devices were fabricated using the programmable proximity aperture lithography technique. The operation of the ALOCO chip was characterized from the flow of red-, blue- and un-dyed deionized water. Experimental result indicated that red water, which filled first the analysis area, was substituted entirely with blue water. Controlled sequential flows of these water in the ALOCO device are demonstrated in this paper.

Original languageEnglish
Article number142
JournalMicrofluidics and Nanofluidics
Issue number10
Publication statusPublished - 2016 Oct 1
Externally publishedYes


  • Capillary flow
  • Lab-on-chip
  • MeV ion beam lithography
  • Microfluidics

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Materials Chemistry


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