Publications

Low-invasive neural recording in mouse models with diabetes via an ultrasmall needle-electrode. Rioki Sanda*, Koji Yamashita*, Hirohito Sawahata, Kensei Sakamoto, Shota Yamagiwa, Shohei Yokoyama, Rika Numano, Kowa Koida and Takeshi Kawano. Biosensors and Bioelectronics, Vol. 240, 115605, November 2023.  pdf SI (*These authors contributed equally to this work)

Nanoneedle-electrode devices for in vivo recording of extracellular action potentials. Tomoaki Banno, Shuhei Tsuruhara, Yu Seikoba, Ryohei Tonai, Koji Yamashita, Shinnosuke Idogawa, Yuto Kita, Ko Suzuki, Yuki Yagi, Yuki Kondo, Rika Numano, Kowa Koida and Takeshi Kawano. ACS Nano, Vol. 16, No. 7, pp. 10692-10700, July 2022.  pdf SI

Nanoscale-tipped wire array injections transfer DNA directly into brain cells ex vivo and in vivo. Rika Numano, Akihiro Goryu, Yoshihiro Kubota, Hirohito Sawahata, Shota Yamagiwa, Minako Matsuo, Tadahiro Iimura, Hajime Tei, Makoto Ishida and Takeshi Kawano. FEBS Open Bio, pp. 835-851, April 2022. pdf Open Access [Also highlighted on EurekAlert!(AAAS)]

A floating 5 μm-diameter needle electrode on the tissue for damage-reduced chronic neuronal recording in mice. Koji Yamashita, Hirohito Sawahata, Shota Yamagiwa, Shohei Yokoyama, Rika Numano, Kowa Koida  and  Takeshi Kawano. Lab on a Chip, Vol. 22, No. 4, pp. 747-756, January 2022. pdf SI

Three-micrometer-diameter needle electrode with an amplifier for extracellular in vivo recordings. Yuto Kita, Shuhei Tsuruhara, Hiroshi Kubo, Hirohito Sawahata, Shota Yamagiwa, Koji Yamashita, Shinnosuke Idogawa, Yu Seikoba, Xian Long Angela Leong, Rika Numano, Kowa Koida and Takeshi Kawano. Proceedings of the National Academy of Sciences USA, Vol. 118, No. 16, e2008233118, April 2021. pdf SI [Also highlighted on EurekAlert!(AAAS)]

A lightweight, wireless Bluetooth-low-energy neuronal recording system for mice. Shinnosuke Idogawa, Koji Yamashita, Rioki Sanda, Rika Numano, Kowa Koida and Takeshi Kawano, Sensors and Actuators B, Vol. 331, 129423, March 2021. pdf SI [Also highlighted on EurekAlert!(AAAS)]

Coaxial microneedle-electrode for multichannel and local-differential recordings of neuronal activity. Shinnosuke Idogawa, Koji Yamashita, Yoshihiro Kubota, Hirohito Sawahata, Rioki Sanda, Shota Yamagiwa, Rika Numano, Kowa Koida and Takeshi Kawano. Sensors and Actuators B, Vol. 320, 128442, October 2020. pdf SI [Also highlighted on EurekAlert!(AAAS)]

Flexible parylene-thread bioprobe and the sewing method for in vivo neuronal recordings. Koji Yamashita, Hirohito Sawahata, Shota Yamagiwa, Yusuke Morikawa, Rika Numano, Kowa Koida and Takeshi Kawano. Sensors and Actuators B, Vol. 316, 127835, August 2020. pdf SI

Donut-shaped stretchable Kirigami: enabling electronics to integrate with the deformable muscle. Yusuke Morikawa, Shota Yamagiwa, Hirohito Sawahata, Rika Numano, Kowa Koida and Takeshi Kawano. Advanced Healthcare Materials, Vol. 8, No. 23, 1900939, December 2019. pdf SI [Also selected as inside back cover page article pdf] [Also highlighted on EurekAlert!(AAAS)]

Self-supporting tetrahedral amorphous carbon films consisting of multilayered structure prepared using filtered arc deposition. Toru Harigai, Yu Miyamoto, Masafumi Yamano, Tsuyoshi Tanimoto, Yoshiyuki Suda, Hirofumi Takikawa, Takeshi Kawano, Mamiko Nishiuchi, Hironao Sakaki, Kiminori Kondo, Satoru Kaneko, Shinsuke Kunitsugu. Thin Solid Films, Vol. 675, pp. 123-127, April 2019. pdf

A magnetically assembled high-aspect-ratio needle electrode for recording neuronal activity. Taiki Yasui, Shota Yamagiwa, Hirohito Sawahata, Shinnosuke Idogawa, Yoshihiro Kubota, Yuto Kita, Koji Yamashita, Rika Numano, Kowa Koida and Takeshi Kawano. Advanced Healthcare Materials, Vol. 8, No. 5, 1801081, March 2019. pdf SI

Two-step poly-Si through-silicon via for high-temperature process of bioprobe. Taiki Yasui, Shota Yamagiwa, Hiroshi Kubo, Shinnosuke Idogawa, Yoshihiro Kubota and Takeshi Kawano. IEEJ Transactions on Sensors and Micromachines, Vol. 138, No. 12, pp. 533-538, December 2018. pdf

Fiber bundle endomicroscopy with multi-illumination for three-dimensional reflectance image reconstruction. Yoriko Ando, Hirohito Sawahata, Takeshi Kawano, Kowa Koida and Rika Numano. Journal of Biomedical Optics, Vol. 23, No. 2, 020502, February 2018. pdf

Ultrastretchable Kirigami bioprobes. Yusuke Morikawa*, Shota Yamagiwa*, Hirohito Sawahata*, Rika Numano, Kowa Koida, Makoto Ishida and Takeshi Kawano. Advanced Healthcare Materials, Vol. 7, No. 3, 1701100, February 2018. pdf SI (*These authors contributed equally to this work) [Also selected as back cover page article pdf] [Also highlighted on Advanced Science News] [Also highlighted on EurekAlert!(AAAS)]

Long nanoneedle-electrode devices for extracellular and intracellular recording in vivo. Yoshihiro Kubota, Shota Yamagiwa, Hirohito Sawahata, Shinnosuke Idogawa, Shuhei Tsuruhara, Rika Numano, Kowa Koida, Makoto Ishida and Takeshi Kawano. Sensors and Actuators B, Vol. 258, pp. 1287-1294, April 2018. pdf SI

Single 5 μm diameter needle-electrode block modules for unit recordings in vivo. Hirohito Sawahata, Shota Yamagiwa, Airi Moriya, Dong Sheng Teo, Hideo Oi, Yoriko Ando, Rika Numano, Makoto Ishida, Kowa Koida and Takeshi Kawano. Scientific Reports, Vol. 6, 35806, September 2016. pdf SI [Also highlighted on EurekAlert!(AAAS)]

Preparation of self-supporting Au thin films on perforated substrate by releasing from water-soluble sacrificial layer. Yu Miyamoto, Yuma Fujii, Masafumi Yamano, Toru Harigai, Yoshiyuki Suda, Hirofumi Takikawa, Takeshi Kawano, Mamiko Nishiuchi, Hironao Sakaki and Kiminori Kondo. Japanese Journal of Applied Physics, Vol. 55, No. 7S2, 07LE05, June 2016. pdf

Nanoscale-tipped high-aspect-ratio vertical microneedle electrodes for intracellular recordings. Yoshihiro Kubota, Hideo Oi, Hirohito Sawahata, Akihiro Goryu, Yoriko Ando, Rika Numano, Makoto Ishida and Takeshi Kawano. Small, Vol. 12, pp. 2846-2853, June 2016. pdf SI [Also selected as front cover page article pdf] [Also highlighted on EurekAlert!(AAAS)]

Reflectance imaging by fiber bundle endoscope: vertical reconstruction by multipositional illumination. Yoriko Ando, Kowa Koida, Hirohito Sawahata, Takashi Sakurai, Mitsuo Natsume, Takeshi Kawano and Rika Numano. AIP Conference Proceedings, Vol. 1709, 020009, February 2016. pdf

Microscale temperature sensing using novel reliable silicon vertical microprobe array: computation and experiment. M. A. Matin, Akihito Ikedo, Takeshi Kawano, Kazuaki Sawada and Makoto Ishida. Microelectronics Reliability, Vol. 55, No. 12, pp. 2689-2697, December 2015. pdf

Co-design method and wafer-level packaging technique of thin-film flexible antenna and silicon CMOS rectifier chips for wireless-powered neural interface systems. Kenji Okabe, Horagodage Prabhath Jeewan, Shota Yamagiwa, Takeshi Kawano, Makoto Ishida and Ippei Akita. Sensors, Vol. 15, No. 12, pp. 31821-31832, December 2015. pdf
[Also highlighted on EurekAlert!(AAAS)]

Dissolvable base scaffolds allow tissue penetration of high-aspect-ratio flexible microneedles. Satoshi Yagi, Shota Yamagiwa, Yoshihiro Kubota, Hirohito Sawahata, Rika Numano, Tatsuya Imashioya, Hideo Oi, Makoto Ishida and Takeshi Kawano. Advanced Healthcare Materials, Vol. 4, pp. 1949-1955, September 2015. pdf [Also selected as inside cover page article pdf] [Also highlighted on EurekAlert!(AAAS)]

Flexible parylene-film optical waveguide arrays. Shota Yamagiwa, Makoto Ishida and Takeshi Kawano. Applied Physics Letters, Vol. 107, 083502, August 2015. pdf SI and Movie

Layer-by-layer assembled nanorough iridium-oxide/platinum-black for low-voltage microscale electrode neurostimulation. Shota Yamagiwa, Akifumi Fujishiro, Hirohito Sawahata, Rika Numano, Makoto Ishida and Takeshi Kawano. Sensors and Actuators B, Vol. 206, pp. 205-211, January 2015. pdf

In vivo neuronal action potential recordings via three-dimensional microscale needle-electrode arrays. Akifumi Fujishiro, Hidekazu Kaneko, Takahiro Kawashima, Makoto Ishida and Takeshi Kawano. Scientific Reports, Vol. 4, No. 4868, May 2014. pdf SI

Vertically integrated metal-clad/silicon dioxide-shell microtube arrays for high-spatial-resolution light stimuli in saline. Masahiro Sakata, Tomohiko Nakamura, Tomoyuki Matsuo, Akihiro Goryu, Makoto Ishida and Takeshi Kawano. Applied Physics Letters, Vol. 104, 164101, April 2014. pdf

Flexible neural electrode arrays with switch-matrix based on a planar silicon Process. Akifumi Fujishiro, Sou Takahashi, Kazuaki Sawada, Makoto Ishida and Takeshi Kawano. IEEE Electron Device Letters, Vol. 35, No. 2, pp. 253-255, February 2014. pdf

Nanoscale tipped Microwire arrays enhance electrical trap and depth injection of nanoparticles. Akihiro Goryu, Rika Numano, Akihito Ikedo, Makoto Ishida and Takeshi Kawano. Nanotechnology, Vol. 23, No. 41, 415301, September 2012. pdf SI

An overhanging carbon nanotube/parylene core-shell nanoprobe electrode. Takeshi Kawano, Chung Yeung Cho and Liwei Lin. Sensors and Actuators A, Vol. 187, pp. 79-83, November 2012. pdf

Heterogeneously integrated vapor-liquid-solid grown silicon probes/(111) and silicon MOSFETs/(100). Akihiro Okugawa, Kotaro Mayumi, Akihito Ikedo, Makoto Ishida and Takeshi Kawano. IEEE Electron Device Letters, Vol. 32, No. 5, pp. 683-685, May 2011. pdf

Out-of-plane high-density piezoresistive silicon microwire/p-n diode array for force and temperature sensitive artificial whisker sensors. Akihito Ikedo, Makoto Ishida and Takeshi Kawano. Journal of Micromechanics and Microengineering, Vol. 21, No. 3, 035007, March 2011. pdf SI

Enlarged gold-tipped silicon microprobe arrays and signal compensation for multi-site electroretinogram recordings in the isolated carp retina. Tetsuhiro Harimoto, Kuniharu Takei, Takeshi Kawano, Akito Ishihara, Takahiro Kawashima, Hidekazu Kaneko, Makoto Ishida and Shiro Usui. Biosensors and Bioelectronics, Vol. 26, No. 5, pp. 2368-2375, January 2011. pdf SI

Nanoscale sharpening tips of vapor-liquid-solid grown silicon microwire arrays. Akihiro Goryu, Akihito Ikedo, Makoto Ishida and Takeshi Kawano. Nanotechnology, Vol. 21, No. 12, 125302, March 2010. pdf

Electrical interfacing between neurons and electronics via vertically-integrated sub-4 micron-diameter silicon probe arrays fabricated by vapor-liquid-solid growth. Takeshi Kawano, Tetsuhiro Harimoto, Akito Ishihara, Kuniharu Takei, Takahiro Kawashima, Shiro Usui and Makoto Ishida. Biosensors and Bioelectronics, Vol. 25, No. 7, pp. 1809-1815, March 2010. pdf

Microtube-based electrode arrays for low invasive extracellular recording with a high signal-to-noise ratio. Kuniharu Takei, Takeshi Kawano, Takahiro Kawashima, Kazuaki Sawada, Hidekazu Kaneko and Makoto Ishida. Biomedical Microdevices, Vol. 12, No. 1, pp. 41-48, February 2010. pdf

Vertically aligned silicon microwire arrays of various lengths by repeated selective vapor-liquid-solid growth of n-type silicon/n-type silicon. Akihito Ikedo, Takahiro Kawashima, Takeshi Kawano and Makoto Ishida. Applied Physics Letters, Vol. 95, 033502, July 2009. pdf [Also selected as cover page article pdf]

Out-of-plane microtube arrays for drug delivery - liquid flow properties and an application to the nerve block test -. Kuniharu Takei, Takahiro Kawashima, Takeshi Kawano, Hidekazu Kaneko, Kazuaki Sawada and Makoto Ishida. Biomedical Microdevices, Vol. 11, No. 3, pp. 539-545, June 2009. pdf

Integration of out-of-plane silicon dioxide microtubes, silicon microprobes, and on-chip NMOSFETs by selective vapor-liquid-solid growth. Kuniharu Takei, Takahiro Kawashima, Takeshi Kawano, Hidekuni Takao, Kazuaki Sawada and Makoto Ishida. Journal of Micromechanics and Microengineering, Vol. 18, No. 3, 035033, March 2008. pdf [Also selected for 2008 Highlights Collection (JMM)] [Also selected for the February 2008 issue of IOP Select] 

An electrothermal carbon nanotube gas sensor. Takeshi Kawano, Heather Chiamori, Marcel Suter, Zhou Qin, Brian Sosnowchik and Liwei Lin. Nano Letters, Vol. 7, No. 12, pp. 3686-3690, December 2007. pdf SI

Formation and characterization of silicon/carbon nanotube/silicon heterojunctions by local synthesis and assembly. Takeshi Kawano, Dane Christensen, Supin Chen, Chung Yeung Cho and Liwei Lin. Applied Physics Letters, Vol. 89, 163510, October 2006. pdf [Also selected for the October 30, 2006 issue of Virtual Journal of Nanoscale Science & Technology]

Realization of in situ doped n-type and p-type Si-microprobe array by selective vapor-liquid-solid (VLS) growth method. Md. Shofiqul Islam, Hiroshi Ishino, Takeshi Kawano, Hidekuni Takao, Kazuaki Sawada and Makoto Ishida. Japanese Journal of Applied Physics, Vol. 44, No. 4B, pp. 2161-2165, April 2005. pdf

Selective vapor-liquid-solid epitaxial growth of micro-Si probe electrode arrays with on-chip MOSFETs on Si (111) substrates. Takeshi Kawano, Yoshiko Kato, Ryoji Tani, Hidekuni Takao, Kazuaki Sawada and Makoto Ishida. IEEE Transactions on Electron Devices, Vol. 51, No. 3, pp. 415-420, March 2004. pdf

A Si nano-micro-wire array on a Si (111) substrate and field emission device applications. Makoto Ishida, Takeshi Kawano, Masato Futagawa, Yuji Arai, Hidekuni Takao and Kazuaki Sawada. Superlattices and Microstructures, Vol. 34, No. 3-6, pp. 567-575, September-December 2003. pdf

Signal conditioning CMOS circuits integrated on Si (111) for image-recording sensor of neural activity. Yoshiko Kato, Takeshi Kawano, Yoshiaki Ito, Hidekuni Takao, Kazuaki Sawada and Makoto Ishida. IEEJ Transactions on Sensors and Micromachines, Vol. 123, No. 9, pp. 363-367, September 2003. pdf

Multichannel 5 x 5-site 3-dimensional Si micro-probe electrode array for neural activity recording. Takeshi Kawano, Hidekuni Takao, Kazuaki Sawada and Makoto Ishida. Japanese Journal of Applied Physics, Vol. 42 part 1, No. 4B, pp. 2473-2477, April 2003. pdf

Fabrication and properties of ultra small Si wire arrays with circuits by vapor-liquid-solid growth. Takeshi Kawano, Yoshiko Kato, Masato Futagawa, Ryoji Tani, Hidekuni Takao, Kazuaki Sawada and Makoto Ishida. Sensors and Actuators A, Vol. 97-98, pp. 709-715, April 2002. pdf