Takehiko Kitamori

Extended-nanofluidic systems for chemistry and biotechnology

Introduction (Microfluidics to Nanofluidics) Nanofabrication Technologies Fluidic Control Methods Detection Technologies Liquid Properties in Extended-Nano Space Applications Future Perspectives.

Application of flowing thermal lens to flow sensors for microchemical chips

A flowing thermal lens microflow velocimeter, in which a photothermally produced local refractive index change (a thermal lens) was used as a tracer, was developed for microchemical chips made of glass. A laser pulse was focused with a microlens on a liquid flow inside a microchannel, and a thermal lens was produced. The thermal lens drifted downstream and was detected using another beam. The velocity was calculated from the time required for the thermal lens to travel between the two points. The microflow velocimeters enabled non-contact measurement with only slight disturbance to the microfluid possible and were suitable for microchemical systems.

Stress-free Cell Culture inside Microchip

細胞を用いたマイクロチップ研究が注目されているが,マイクロチップ内の良好な細胞培養についての研究はほとんど行われていない。そこで,細胞培養条件に着目し,細胞へのストレスを低減して細胞の健全な培養を達成した。本稿では,マイクロチップ内細胞培養と培養した細胞を利用したマイクロ化学システムを紹介し,医療や産業への応用について述べる。田中有希