Publications by authors named "Keita Funayama"
Modified solid surfaces exhibit unique wetting behavior, such as hydrophobicity and hydrophilicity. Such behavior can passively control the fluid flow. In this study, we experimentally demonstrated a wettability-designable cell array consisting of unetched and physically etched surfaces by reactive ion etching on a silicon substrate.
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- Nanoscale cantilevers made from carbon nanotubes (CNTs) are advantageous for sensing and electromagnetic uses, but traditional fabrication methods are time-consuming and require careful manual processes.
- An AI-assisted approach allows for quicker and more efficient production of CNT-based nanocantilevers, completing recognition and measurement tasks in 2 seconds compared to 12 hours manually, with high accuracy in positioning.
- The resulting nanocantilevers have potential applications in neuromorphic computing and can effectively recognize handwritten images, paving the way for further advances in CNT technology.
Acoustic radiation force plays a key role in microfluidic systems for particle and cell manipulation. In this study, we investigate the acoustic radiation force resulting from synthesized ultrasounds that are emitted from multiple sound sources with slightly different oscillation frequencies. Due to the synthesized field, the acoustic radiation force is expressed as the sum of a dc component and harmonics of fundamental frequencies of a few hertz.
View Article and Find Full Text PDFThis work studies the enhancement factor associated with a current emitted from a multi-wall carbon nanotube to an extremely small counter electrode. The experimental data show that the field enhancement factor increases by 1.15 times when the width of the counter electrode increases from 50 to 200 nm.
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