Developing a method of fabricating microchannels using plant root structure

Shota Nakashima, Kazuki Tokumaru, Fujio Tsumori

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


Complicated three-dimensional (3D) microchannels are expected to be applied to a lab-on-a-chip, especially an organ-on-a-chip. There are fine microchannel networks such as blood vessels in a living organ. However, it is difficult to recreate the complicated 3D microchannels of real living structures. Plant roots have a similar structure to blood vessels. They spread radially and three-dimensionally, and become thinner as they branch. In this research, we propose a method of fabricating microchannels using a live plant root as a template to mimic a blood vessel structure. We grew a plant in ceramic slurry instead of soil. The slurry consists of ceramic powder, binder and water, so it plays a similar role to soil consisting of fine particles in water. After growing the plant, the roots inside the slurry were burned and a sintered ceramic body with channel structures was obtained by heating. We used two types of slurry with different composition ratios, and compared the internal channel structures before and after sintering.

Original languageEnglish
Article number06HJ07
JournalJapanese journal of applied physics
Issue number6
Publication statusPublished - Jun 2018

All Science Journal Classification (ASJC) codes

  • General Engineering
  • General Physics and Astronomy


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