Division of Advanced Applied Physics, Institute of Engineering Tokyo University of Agriculture and Technology Maehashi Laboratory

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Paper

2020

“Selective Detection of Cu2+ Ions by Immobilizing Thiacalix[4]arene on Graphene Field-Effect Transistors”
Yuki Takagiri, Takashi Ikuta, and Kenzo Maehashi
ACS Omega 5 (2020) 877-881. https://pubs.acs.org/doi/10.1021/acsomega.9b03821
“Ethanol Detection at the Parts per Billion Level with Single-Stranded-DNA-Modified Graphene Field-Effect Transistors”
Ryo Nozaki, Takashi Ikuta, Kinuko Ueno, Kaori Tsukakoshi, Kazunori Ikebukuro, and Kenzo Maehashi
Phys. Status Solidi B 257 (2020) 1900376/1-6. https://doi.org/10.1002/pssb.201900376

2019

“High-responsivity turbostratic stacked graphene photodetectors using enhanced photogating”
Masaaki Shimatani, Naoki Yamada, Shoichiro Fukushima, Satoshi Okuda, Takashi Ikuta, and Kenzo Maehashi
Appl. Phys. Express 12 (2019) 122010/1-5. https://doi.org/10.7567/1882-0786/ab5096
“Photosensing System Using Photosystem I and Gold Nanoparticle on Graphene Field-Effect Transistor”
Daiki Nishiori,Wenchao Zhu, Rapha?l Salles, Mariko Miyachi, Yoshinori Yamanoi, Takashi Ikuta, Kenzo Maehashi, Tatsuya Tomo, and Hiroshi Nishihara
ACS Appl. Mater. Interfaces 11 (2019) 42773-42779. https://doi.org/10.7567/1882-0786/aaf90a
“Effective binding of sugar chains to influenza virus on the surface by bovine serum albumin localization”
Toshio Kawahara, Hiroaki Hiramatsu, Yuhsuke Ohmi, Nongluk Sriwilaijaroen, Yasuo Suzuki, Shin-ichi Nakakita, Yohei Watanabe, Yasuhide Ohno, Kenzo Maehashi, Takao Ono, Yasushi Kanai, and Kazuhiko Matsumoto
Jpn. J. Appl. Phys. 58 (2019) SIID03/1-5. https://doi.org/10.1021/acsami.9b14771
“Effect of Clustering on the Fluctuation in Binding Activity of Sugar Chains to Influenza Viruses”
Toshio Kawahara, S. K. Rupesh, Yasuhide Ohno, Kenzo Maehashi, Kazuhiko Matsumoto, Kazumasa Okamoto, Risa Utsunomiya, Teruaki Matsuba
Proc. 25th International Conference on Noise and Fluctuations (2019) 248-251.
“Large deformation and rapid response of spatial light modulators fabricated with suspended polymer”
Yuki Hanabusa, Takashi Ikuta, and Kenzo Maehashi
Jpn. J. Appl. Phys. 58 (2019) SDDL04/1-4. https://doi.org/10.7567/1347-4065/ab0892
“Enhanced photogating via pyroelectric effect induced by insulator layer for high-responsivity long-wavelength infrared graphene-based photodetectors operating at room temperature”
Masaaki Shimatani, Shinpei Ogawa, Shoichiro Fukushima, Satoshi Okuda, Yasushi Kanai, Takao Ono, and Kazuhiko Matsumotoi
Appl. Phys. Express 12 (2019) 025001/1-5. https://doi.org/10.7567/1882-0786/aaf90a

2018

“Effects of low temperature buffer on carbon nano wall's growth”
Rupesh Singh, Toshio Kawahara, Yuhsuke Ohmi, Yasuhide Ohno, Kenzo Maehashi,Kazuhiko Matsumoto, Kazumasa Okamoto, Risa Utsunomiya, Masamichi Yoshimura
Materials Today Communications 17 (2018) 94–99. https://doi.org/10.1016/j.mtcomm.2018.08.012
“Development of glutamate biosensor based on the integration on network SWCNT-FET and glutamate-binding protein”
Nguyen T. Tung, Trisha D. Farha, Hidekazu Tsutsui, Truong T.N. Lien, Yasuhide Ohno, Kenzo Maehashi, Kazuhiko Matsumoto, Manish Biyani, Phan T. Tue, Yuzuru Takamura
Micro-TAS 2018 (2018), p795-797.
“High-sensitive and selective detection of human-infectious influenza virus using biomimetic graphene field-effect transistor”
Takao Ono, Takuya Kawata, Yasushi Kanai, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, Yohei Watanabe, Shin-ichi Nakakita, Yasuo Suzuki, Toshio Kawahara, and Kazuhiko Matsumoto
Device Research Conference - Conference Digest, (2018), Article number 8442255.
“Improved sensitivity of a graphene FET biosensor using porphyrin linkers”
Takuya Kawata, Takao Ono, Yasushi Kanai, Yasuhide Ohno, Kenzo Maehashi, and Kazuhiko Matsumoto
Jpn. J. Appl. Phys. 57 (2018) 065103/1-4. https://doi.org/10.7567/JJAP.57.065103
“Palladium configuration dependence of hydrogen detection sensitivity based on graphene FET for breath analysis”
Yuri Sakamoto, Kohei Uemura, Takashi Ikuta, and Kenzo Maehashi
Jpn. J. Appl. Phys. 57 (2018) 04FP05/1-4. https://doi.org/10.7567/JJAP.57.04FP05
“Turbostratic stacked CVD graphene for high-performance devices”
Kohei Uemura, Takashi Ikuta, and Kenzo Maehashi
Jpn. J. Appl. Phys. 57 (2018) 030311/1-4. https://doi.org/10.7567/JJAP.56.075102
“Graphene Surface Acoustic Wave Sensor for Simultaneous Detection of Charge and Mass”
Satoshi Okuda, Takao Ono, Yasushi Kanai, Takashi Ikuta, Masaaki Shimatani, Shinpei Ogawa, Kenzo Maehashi, Koichi Inoue, and Kazuhiko Matsumoto
ACS Sensors 3 (2018) 200-204. DOI: 10.1021/acssensors.7b00851

2017

“Peptide aptamer-modified single-walled carbon nanotube-based transistors for high-performance biosensors”
Nguyen Thanh Tung, Phan Trong Tue, Truong Thi Ngoc Lien, Yasuhide Ohno, Kenzo Maehashi, Kazuhiko Matsumoto, Koichi Nishigaki, Manish Biyani, Yuzuru Takamura
Scientific Reports 7 (2017) 17881/1-9. DOI:10.1038/s41598-017-18169-1
“Lab-on-a-Graphene: Functionalized Graphene Transistors and Their Application for Biosensing”
Takao Ono, Yasushi Kanai, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, and Kazuhiko Matsumoto
Carbon-related Materials in Recognition of Nobel Lectures by Prof. Akira Suzuki in ICCE Springer 10 September (2017) 79-90. https://doi.org/10.1007/978-3-319-61651-3_4
“Room-temperature discrete-charge-fluctuation dynamics of a single molecule adsorbed on a carbon nanotube”
Agung Setiadi, Hayato Fujii, Seiya Kasai, Ken-ichi Yamashita, Takuji Ogawa, Takashi Ikuta, Yasushi Kanai, Kazuhiko Matsumoto, Yuji Kuwaharaa and Megumi Akai-Kasaya
Nanoscale 9 (2017) 10674-10683. http://dx.doi.org/10.1039/C7NR02534C
“Dynamical thermodiffusion model of graphene synthesis on polymer films by laser irradiation and application to strain sensors”
Yasushi Kanai, Yusuke Ishibashi, Takao Ono, Kouichi Inoue, Yasuhide Ohno, Kenzo Maehashi, and Kazuhiko Matsumoto
Jpn. J. Appl. Phys. 56 (2017) 075102/1-6. https://doi.org/10.7567/JJAP.56.075102
“Zero-bias conductance anomaly in graphene dots”
Yasushi Kanai, Mohamed Almokhtar, Takao Ono, Yasuhide Ohno, Kenzo Maehashi, Kouichi Inoue, and Kazuhiko Matsumoto
Jpn. J. Appl. Phys. 56 (2017) 06GE07/1-3. https://doi.org/10.7567/JJAP.56.06GE07
“The effects of the plasma process for the self-aligned nano-carbon field effect transistors”
Toshio Kawahara, S. K. Rupesh, Yasuhide Ohno, Kenzo Maehashi, Kazuhiko Matsumoto, Kazumasa Okamoto, Risa Utsunomiya, Teruaki Matsuba
Proc. 24th International Conference on Noise and Fluctuations (2017).
“Glycan-functionalized graphene-FETs toward selective detection of human-infectious avian influenza virus”
Takao Ono, Takeshi Oe, Yasushi Kanai, Takashi Ikuta, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, Yohei Watanabe, Shin-ichi Nakakita, Yasuo Suzuki, Toshio Kawahara, and Kazuhiko Matsumoto
Jpn. J. Appl. Phys. 56 (2017) 030302/1-4.

2016

“Development of Nano-Carbon Biosensors Using Glycan for Host Range Detection of Influenza Virus”
Toshio Kawahara, Hiroaki Hiramatsu, Yasuo Suzuki, Shin-ichi Nakakita, Yasuhide Ohno, Kenzo Maehashi, Kazuhiko Matsumoto, Kazumasa Okamoto, Teruaki Matsuba, and Risa Utsunomiya
Condens. Matter 1 (2016) 7.
“Graphene device array using transfer-free patterned growth on insulator for an electrolyte-gated sensor”
Takashi Ikuta, Takeshi Oe, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, Kazuhiko Matsumoto
Thin Solid Films 612 (2016) 87-90.
“Acoustic carrier transportation induced by surface acoustic waves in graphene in solution”
Satoshi Okuda, Takashi Ikuta, Yasushi Kanai, Takao Ono, Shinpei Ogawa, Daisuke Fujisawa, Masaaki Shimatani, Koichi Inoue, Kenzo Maehashi, and Kazuhiko Matsumoto
Appl. Phys. Express 9 (2016) 045104.
“Utilizing research into electrical double layers as a basis for the development of label-free biosensors based on nanomaterial transistors”
Kenzo Maehashi, Yasuhide Ohno, and Kazuhiko Matsumoto
Nanobiosensors in Disease Diagnosis 5 (2016) 1–13.

2015

“Graphene-FET-based gas sensor properties depending on substrate surface conditions”
Masatoshi Nakamura, Yasushi Kanai, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, and Kazuhiko Matsumoto
Jpn. J. Appl. Phys. 54 (2015) 06FF11/1-4.
“Carbon nanotube single-electron transistors with single-electron charge storages”
Kohei Seike, Yasushi Kanai, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, and Kazuhiko Matsumoto
Jpn. J. Appl. Phys. 54 (2015) 06FF05/1-4.
“Noise spectroscopy of self-aligned carbon nanowalls”
Toshio Kawahara, Yasuhide Ohno, Kenzo Maehashi, Kazuhiko Matsumoto, Kazumasa Okamoto, Risa Utsunomiya, and Teruaki Matsuba
Proc. 23rd International Conference on Noise and Fluctuations (2015) 108–111.

2014

“Direct graphene synthesis on a Si/SiO2 substrate by a simple annealing process”
Takashi Ikuta, Kenta Gumi, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue and Kazuhiko Matsumoto
Materials Research Express 1 (2014) 025028/1-8
“Carbon Nanowall Field Effect Transistors Using a Self-Aligned Growth Process”
Toshio Kawahara, Satarou Yamaguchi, Yasuhide Ohno, Kenzo Maehashi, Kazuhiko Matsumoto, Kazumasa Okamoto, Risa Utsunomiya, Teruaki Matsuba, and Yuki Matsuoka
e-J. Surf. Sci. Nanotech. 12 (2014) 225-229.
“Characterization of reduced graphene oxide field-effect transistor and its application to biosensor”
Masaki Hasegawa, Yuki Hirayama, Yasuhide Ohno, Kenzo Maehashi, and Kazuhiko Matsumoto
Jpn. J. Appl. Phys. 53 (2014) 05FD05/1-4.
“Raman Spectra Mapping of Self-aligned Carbon Nanowalls”
Toshio Kawahara, Satarou Yamaguchi, Yasuhide Ohno, Kenzo Maehashi, Kazuhiko Matsumoto, Kazumasa Okamoto, Risa Utsunomiya, Teruaki Matsuba, Yuki Matsuoka, and Masamichi Yoshimura
Jpn. J. Appl. Phys. 53 (2014) 05FD10/1-6.
“Floating-Gated Memory Based on Carbon Nanotube Field-Effect Transistors with Si Floating Dots”
Kohei Seike, Yusuke Fujii, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue and Kazuhiko Matsumoto
Jpn. J. Appl. Phys. 53 (2014) 04EN07/1-5.
“Electric field-dependence of optical phonons in Raman scattering spectra of bilayer graphene”
Yusuke Yamashiro, Koichi Inoue, Yasuhide Ohno, Kenzo Maehashi, and Kazuhiko Matsumoto
J. Phys. Soc. Jpn. 83 (2014) 034703/1-5.
“Recent advances in functional graphene biosensors”
Kazuhiko Matsumoto, Kenzo Maehashi, Yasuhide Ohno, and and Koichi Inoue
J. Phys. D: Appl. Phys. 47 (2014) 094005/1-6.

2013

“Direct Electrical Detection of DNA Hybridization Based on Electrolyte-Gated Graphene Field-Effect Transistor”
Yasuhide Ohno, Shogo Okamoto, Kenzo Maehashi, and Kazuhiko Matsumoto
Jpn. J. Appl. Phys. 52 (2013) 110107.
“Silicon-Nitride-Passivated Bottom-up Single-Electron Transistors”
Guillaume Hackenberger, Yasuo Azuma, Shinya Kano, Daisuke Tanaka, Masanori Sakamoto, Toshiharu Teranishi, Yasuhide Ohno, Kenzo Maehashi, Kazuhiko Matsumoto, Yutaka Majima
Jpn. J. Appl. Phys. 52 (2013) 110101.
“Floating-bridge structure of graphene with ionic-liquid gate”
Yusuke Yamashiro, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, and Kazuhiko Matsumoto
Physica Status Solidi C 10 (2013) 1604-1607.
“Position-Controlled Direct Graphene Synthesis on Silicon Oxide Surfaces Using Laser Irradiation”
Keisuke Koshida, Kenta Gumi, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, and Kazuhiko Matsumoto
Appl. Phys. Express 6 (2013) 105101.
“Selective ion sensors based on ionophore-modified graphene field-effect transistors”
Kenzo Maehashi, Yasuyuki Sofue, Shogo Okamoto, Yasuhide Ohno, Koichi Inoue and Kazuhiko Matsumoto
Sensors and Actuators B 187 (2013) 45-49.
“pH Sensor Based on Chemical-Vapor-Deposition-Synthesized Graphene Transistor Array”
Nursakinah Binti Mohd Zaifuddin, Shogo Okamoto, Takashi Ikuta, Yasuhide Ohno, Kenzo Maehashi, Masato Miyake, Paul Greenwood, Kenneth B. K. Teo, and Kazuhiko Matsumoto
Jpn. J. Appl. Phys. 52 (2013) 06GK04.
“Gold-linked electrochemical immunoassay on single-walled carbon nanotube for high sensitive detection of human chorionic gonadotropin hormone”
Nguyen Xuan Vieta, Miyuki Chikae, Yoshiaki Ukita, Kenzo Maehashi, Kazuhiko Matsumoto, Eiichi Tamiya, Pham Hung Viet and Yuzuru Takamura
Biosens. Bioelectron. 42 (2013) 592-597.
“Diameter dependence of 1/f noise in carbon nanotube field effect transistors using noise spectroscopy”
Toshio Kawahara, Satarou Yamaguchi, Yasuhide Ohno, Kenzo Maehashi, Kazuhiko Matsumoto, Shin Mizutani, and Kenji Itaka
Appl. Surf. Sci. 267 (2013) 101-105.
“Gate voltage dependence of 1/f noise in carbon nanotubes with the different metal contacts”
Toshio Kawahara, Satarou Yamaguchi, Yasuhide Ohno, Kenzo Maehashi, Kazuhiko Matsumoto, Shin Mizutani, and Kenji Itaka
Proc. 22nd International Conference on Noise and Fluctuations (2013) 6578970.

2012

“Horizontally Aligned Carbon Nanotubes on Quartz Substrate for Chemical and Biological Sensing”
Satoshi Okuda, Shogo Okamoto, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, and Kazuhiko Matsumoto
J. Phys. Chem. C 116 (2012) 19490-19495.
“Electric-field-induced band gap of bilayer graphene in ionic liquid.”
Yusuke Yamashiro, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, and Kazuhiko Matsumoto
J. Vac. Soc. Technol. B 30 (2012) 03D111.
“Complementary voltage inverters with large noise margin based on carbon nanotube field-effect transistors with SiNx top-gate insulators”
Kenzo Maehashi, Takaomi Kishimoto, Yasuhide Ohno, Koichi Inoue, and Kazuhiko Matsumoto
J. Vac. Sci. Technol. B 30 (2012) 03D108.
“Direct Synthesis of Graphene on SiO2 Substrates Using Transfer-Free Processes”
Kenta Gumi, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, and Kazuhiko Matsumoto
Jpn. J. Appl. Phys. 51 (2012) 06FD12.
“Carbon Nanotube-Based Floating Gate Memory with High-k Dielectrics”
Yusuke Fujii, Takahiro Ohori, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, and Kazuhiko Matsumoto
Jpn. J. Appl. Phys. 51 (2012) 06FD11.
“Immunosensors Based on Graphene Field-Effect Transistors using Antigen-Binding Fragment”
Shogo Okamoto, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, and Kazuhiko Matsumoto
Jpn. J. Appl. Phys. 51 (2012) 06FD08.
“Carrier Transport Properties of the Field Effect Transistors with Graphene Channel Prepared by Chemical Vapor Deposition”
Ryota Negishi, Yasuhide Ohno, Kenzo Maehashi, Kazuhiko Matsumoto, and Yoshihiro Kobayashi
Jpn. J. Appl. Phys. 51 (2012) 06FD03.
“Fabrication of new single walled carbon nanotubes microelectrode for electrochemical sensors application”
Nguyen Xuan Vieta, Yoshiaki Ukita, Miyuki Chikae, Yasuhide Ohno, Kenzo Maehashi, Kazuhiko Matsumoto, Pham Hung Viet and Yuzuru Takamura
Talanta 91 (2012) 88-94.
“Selective ion sensors based on ionophore-modified graphene field-effect transistors”
Kenzo Maehashi, Yasuyuki Sofue, Shogo Okamoto, Yasuhide Ohno, Koichi Inoue and Kazuhiko Matsumoto
Proc. The 14th International Meeting on Chemical Sensors (2012) 305-308.
“Fragment-Modified Graphene FET for Highly Sensitive Detection of Antigen-Antibody Reaction
Shogo Okamoto, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue and Kazuhiko Matsumoto
Proc. The 14th International Meeting on Chemical Sensors (2012) 519-522.

International Conference

2018

Nanotech Malaysia 2018 (2018) May. 7 - 8, Universiti Teknologi Malaysia, Kuala Lumpur, Malaysia
“High-performance graphene devices and applications” (Invited)
Kenzo Maehashi and Takashi Ikuta

2017

30th Int. Microprocesses and Nanotechnology Conference (2017) Nov. 6 - 9, Ramada Plaza JeJu Hotel, JeJu, Korea
“Electrical and Magnetic Characteristics of Randomly Stacked CVD Graphene” 7B-2-2
Kohei Uemura, Takashi Ikuta, Takao Ono, Yasushi Kanai, Koichi Inoue, Kazuhiko Matsumoto, Takehiko Hihara and Kenzo Maehashi
“Evaluation of carrier transport mechanism in long P3HT molecular wire using graphene nanogap electrodes” 9P-12-26
Takashi Ikuta, Shunsuke Tamba, Koichi Inoue, Yutaka Ie, Yoshio Aso,Kazuhiko Matsumoto, and Kenzo Maehashi

2017 Int. Conf. Solid State Devices and Materials (2017) Sept. 19-22, Sendai International Center, Sendai, Miyagi, Japan
“Chemical Sensing using Graphene-based Surface-Acoustic-Wave Sensor” J-4-05
Satoshi Okuda, Takao Ono, Yasushi Kanai, Masaaki Shimatani, Shinpei Ogawa, Takashi Ikuta, Koichi Inoue, Kenzo Maehashi, and Kazuhiko Matsumoto
“Pd-dot-size dependence of hydrogen sensors based on graphene FET for breath analysis” H-1-04
Yuri Sakamoto, Kohei Uemura, Takashi Ikuta, and Kenzo Maehashi

59th Electronic Materials Conference (2017) Jun. 28-30, University of Notre Dame, South Bend, Indiana, USA
“Reaction of Viral Proteins and Sialoglycan on Biomimetic Graphene Surface Measured by Liquid Atomic Force Microscope and Graphene Field-Effect Transistor” I1 Jun. 28”
Kaho Kamada, Takao Ono, Ryota Hayashi, Yasushi Kanai, Koichi Inoue, Yasuhide Ohno, Kenzo Maehashi, Yohei Watanabe, Shin-ichi Nakakita, Yasuo Suzuki, Toshio Kawahara, Sonia. A. Contera and Kazuhiko Matsumoto
“Measurement of Enzymatic Reaction Using Graphene Field-Effect Transistor and Microwell for Detection of Helicobacter Pylori” I2 Jun. 28”
Takao Ono, Yasushi Kanai, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue and Kazuhiko Matsumoto
9th International Conference on Molecular Electronics and Bioelectronics (2017) Jun. 26-28, Ishikawa Ongakudo and ANA Crowne Plaza Kanazawa, Kanazawa, Ishikawa, Japan
“Optimization of peptide aptamer immobilization onto single-walled carbon nanotube field-effect transistor for aptasensor” P-T2-007, Jun. 26”
Nguyen Thanh Tung, Phan Trong Tue, Truong Thi Ngoc Lien, Yasuhide Ohno, Kenzo Maehashi, Kazuhiko Matsumoto, Manish Biyani, Yuzuru Takamura
24th International Conference on Noise and Fluctuations (2017) Jun. 20-23, Vilnius University, Vilnius, Lithuania
“The effects of the plasma process for the self-aligned nano-carbon field effect transistors” B8.2, Jun. 22”
Toshio Kawahara, S. K. Rupesh, Yasuhide Ohno, Kenzo Maehashi, Kazuhiko Matsumoto, Kazumasa Okamoto, Risa Utsunomiya, Teruaki Matsuba
5th International Conference on Bio-Sensing Technology (2017) May 7-10, Riva Del Garda Congress Centre, Riva del Garda, Italy
“Peptide aptamer-modified single-walled carbon nanotube field-effect-transistor-based biosensor for ultrasensitive cancer diagnostics” P193, May 8”
Nguyen Thanh Tung, Phan Trong Tue, Truong Thi Ngoc Lien, Yasuhide Ohno, Kenzo Maehashi, Kazuhiko Matsumoto, Manish Biyani, Yuzuru Takamura
Global Innovation Research Organization Int. Symp. (2017) Mar. 20, TUAT, Tokyo, Japan
“Nanocarbon-based Biosensors” (Invited)
Kenzo Maehashi

2016

99th International Conference on Nanoscience, Nanotechnology and Advanced Materials (2016) Dec. 27-28, Ramses Hilton, Cairo, Egypt
“Zero-Bias Conductance Anomaly in Graphene dots”
Yasushi Kanai, M. Almokhtar, Takao Ono, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue and Kazuhiko Matsumoto
24th International Colloquium on Scanning Probe Microscopy (2016) Dec. 14-16, Hawaii Convention Center, Hawaii, USA
“Comparison of Sugar Chains of Sialylglycopeptide and Sialyllactose for the Application of Influenza Bio Sensor” S4-3
Toshio Kawahara, Hiroaki Hiramatsu, Y. Ohmi, Yasuo Suzuki, Shin-ichi Nakakita, Yasuhide Ohno, Kenzo Maehashi, and Kazuhiko Matsumoto
38th International Symposium on Dry Process (2016) Nov. 21-22, Hokkaido Univ., Sapporo, Hokkaido, Japan
“Plasma process for the improvements of device characteristics for self-aligned nano-carbon FETs”
Toshio Kawahara, S. K. Rupesh, asuhide Ohno, Kenzo Maehashi, Kazuhiko Matsumoto, Kazumasa Okamoto, Risa Utsunomiya and Teruaki Matsuba
Global Innovation Research Organization International Symposium (2016) Nov. 15, TUAT, Tokyo, Japan
“Development of Innovative Biodevices Employing Autonomous Sensing Actuator”
Kenzo Maehashi
29th Int. Microprocesses and Nanotechnology Conference (2016) Nov. 8-11, ANA Crowne Plaza, Kyoto, Japan
“Kondo Effect in Graphene Quantum Dots” 11P-11-25
Yasushi Kanai, Takao Ono, Yasushide Ohno, Kenzo Maehashi, Koichi Inoue, and Kazuhiko Matsumoto
“Platform for Electrical Measurement of π-Conjugated Polymer Wire with Graphene Nanogap Electrodes” 11P-11-25
Takashi Ikuta, Shunsuke Tamba, Yasushi. Kanai, Yasushide Ohno, Kenzo Maehashi, Koichi Inoue, Yutaka Ie, Yoshio Aso, and Kazuhiko Matsumoto
AVS 63rd International Symposium and Exhibition (2016) Nov. 6-11, Music City Center, Nashville, Tennessee, USA
“Neuraminidase Assay using Glycan-Functionalized Graphene Field-Effect Transistors
Kaho Kamada, Takao Ono, Yasushi Kanai, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, Yohei Watanabe, Toshio Kawahara, Yasuo Suzuki, Shinichi Nakakita, Kazuhiko Matsumoto
13th International Conference on Atomically Controlled Surfaces, Interfaces and Nanostructures (2016) Oct. 9-15, Laboratori Nazionali di Frascati, Rome, Italy
“Developments of the nano-carbon bio sensors using glycan for influenza virus”
Toshio Kawahara, Hiroaki Hiramatsu, Yasuo Suzuki, Shinichi Nakakita, Yasuhide Ohno, Kenzo Maehashi, Kazuhiko Matsumoto, Kazumasa Okamoto, Teruaki Matsuba, and Risa Utsunomiya
PRiME (2016) Oct. 2-7, Hawaii Convention Center, Hawaii, USA
“Electrical detection of biomolecules using graphene-based devices” (Invited)
Kenzo Maehashi

2016 Int. Conf. Solid State Devices and Materials (2016) Sept. 26-29, Tsukuba International Congress Center, Tsukuba, Japan
“Measurement of Enzyme Molecules and Their Reactions Using Graphene-FET Equipped with Microwells” J-3-04
Takao Ono, Yasushi Kanai, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, and Kazuhiko Matsumoto
The 43rd International Symposium on Compound Semiconductor (2016) Jun. 23-30, Toyama International Conference Center, Toyama, Japan
“Detection Kondo effect in Graphene Quantum Dots” MoB3-5
Yasushi Kanai, Takashi Ikuta, Takao Ono, Yasushide Ohno, Kenzo Maehashi, Koichi Inoue, and Kazuhiko Matsumoto
“An Application of Graphene Field Effect Transistor to Enzymatic Assay” ThC2-3
Takao Ono, Yasushi Kanai, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, and Kazuhiko Matsumoto
Tech Scouting Japan (2016) Apr. 25, Shinagawa, Tokyo, Japan
“Development of highly sensitive sensors based on graphene devices” (Invited)
Kenzo Maehashi
The 11th Annual IEEE International Conference on Nano/Micro Engineered and Molecular Systems (2016) Apr. 17-20, Matsushima, Miyagi, Japan
“Position-Controlled graphene Synthesis and Development of Biological Sensors and Molecular Devices” (Invited)
Kenzo Maehashi
Global Innovation Research Organization Int. Symp. “Development of Innovative Biodevices Employing Autonomous Sensing Actuator” (2016) Mar. 23, Tokyo, Japan
“Development of biological sensors based on graphene transistors”
Kenzo Maehashi

2015

28th Int. Microprocesses and Nanotechnology Conference (2015) Nov. 10 - 13, Toyama, Japan
“Polythiophene-Molecular-Based Transistor with Graphene Nanogap Electrodes”
Takashi Ikuta, Shunsuke Tamba, Yasushi Kanai, Takao Ono, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, Yutaka Ie, Yoshio Aso, and Kazuhiko Matsumoto
“Position-Controlled Graphene Growth Using Micropatterning on Catalytic Copper Surface”
Yuki Mori, Takashi Ikuta, Takao Ono, Yasushi Kanai, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue and Kazuhiko Matsumoto
“Electrical Detection of Polymerase Chain Reaction Using Graphene Field-Effect Transistors”
Masayuki Okano, Saban Norhayati, Verm Rajiv, Takao Ono, Yasushi Kanai, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, Fumie Takei, Kazuhiko Nakatani, and Kazuhiko Matsumoto
11th Topical Workshop on Heterostructure Microelectronics (2015) Aug. 23-26, Takayama, Gifu, Japan
“Graphen synthesis and development of graphene-based biological sensors” (Invited)
Kenzo Maehashi
International Workshop on Molecular Architectonics (2015) Aug. 3-6, Shiretoko, Hokkaido, Japan
“Memory effect of redox state on graphene/Al2O3 bilayer”
Kaho Kamada, Takashi Ikuta, Takao Ono, Yasushi Kanai, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, Nana Kawaguchi, Yutaka Ie, Yoshio Aso, and Kazuhiko Matsumoto
73rd Device Research Conference (2015) Jun. 21-24, Ohio, USA
“Direct Graphene Synthesis on Polymer Films and its Application to Flexible Devices”
Yusuke Ishibashi, Yasushi Kanai, Takao Ono, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, and Kazuhiko Matsumoto

2014

Energy Materials Technology Fall Meeting (2014) Nov. 22-25, Orland, USA
“Graphene-based biosensors and graphene synthesis” (Invited)
Kenzo Maehashi
27th Int. Microprocesses and Nanotechnology Conference (2014) Nov. 5- 7, Fukuoka, Japan
“Memory Operation of Carbon Nanotube Single-Electron Transistors with Charge Storage Structure”
Kohei Seike, Yasushi Kanai, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue and Kazuhiko Matsumoto
“Graphene-FET-Based Gas-Sensor Properties Depending on Substrate Surface Conditions”
Masatoshi Nakamura, Yasushi Kanai, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue and Kazuhiko Matsumoto
“Electrical Detection of Lectin Using Glycan-Modified Graphene Field-Effect Transistors for Highly Sensitive Influenza Virus Sensor”
Takeshi Oe, Yasushi Kanai, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, Kazuhiko Matsumoto, Yuhei Watanabe, Toshio Kawahara, Yasuo Suzuki, and Shinichi Nakakita
“Reduction of Sheet Resistance in Graphene Conductive Film with Carbon Nanotubes”
Takashi Ikuta, Yasushi Kanai, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue and Kazuhiko Matsumoto
“Detection of Fluorescence Molecule-DNA Binding Based on a Graphene FET”
Masayuki Okano, Saban Norhayati, Verm Rajiv, Yasushi Kanai, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, Fumie Takei, Kazuhiko Nakatani, and Kazuhiko Matsumoto
The 6th Int. Conf. Recent Progress in Graphene Research (2014) Sept. 22-25, Taipei, Taiwan
“Graphene Synthesis by Laser-Annealing Technique and Device Applications”
Yusuke Ishibashi, Keisuke Koshida, Yasushi Kanai, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, and Kazuhiko Matsumoto
“pH Detection Based on Direct Graphene Growth on Si/SiO2 Substrate”
Takashi Ikuta, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, and Kazuhiko Matsumoto
2014 Int. Conf. Solid State Devices and Materials (2014) Sept. 9-11, Tsukuba, Japan
“Graphene Synthesis by Laser-Annealing Technique Using Co Catalyst”
Yusuke Ishibashi, Keisuke Koshida, Yasushi Kanai, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue and Kazuhiko Matsumoto

2013

Int. Symp. Advanced Nanodevices and Nanotechnology (2013) Dec. 8-13, Hawaii, USA
“Fragment antibody based biosensors using graphene field-effect transistor" Yasuhide Ohno, Shogo Okamoto, Kenzo Maehashi, and Kazuhiko Matsumoto
26th Int. Microprocesses and Nanotechnology Conference (2013) Nov. 5 - 8, Sapporo, Japan
“Graphene Field-Effect Transistor-Based Influenza-Virus Detection”
Takeshi Oe, Yasuhide Ohno, Kenzo Maehashi, Kazuhiko Matsumoto, Yuhei Watanabe, Kazuyoshi Ikuta, Toshio Kawahara, and Yasuo Suzuki
“Direct Graphene Synthesis on Insulated Substrates Using Ni/Pd Catalytic Layers”
Takashi Ikuta, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, and Kazuhiko Matsumoto
“Floating-Bridge Graphene Devices on Ionic Liquid”
Yusuke Yamashiro, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, and Kazuhiko Matsumoto
2013 Int. Conf. Solid State Devices and Materials (2013) Sept. 24 – 27, Fukuoka, Japan
“Laser-Irradiated Direct Synthesis of Graphene and Device Application”
Keisuke Koshida, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, and Kazuhiko Matsumoto
“Floating-Gated Memory Based on Carbon Nanotube Field-Effect Transistors with Si Floating Dots”
Kohei Seike, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, and Kazuhiko Matsumoto
“Fabrication of graphene devices using resist-free process”
Masatoshi Nakamura, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, and Kazuhiko Matsumoto
2013 JSAP MRS Joint Symposia (2013) Sept. 16 – 20, Kyoto, Japan
“Application of Sensor Array using CVD-Synthesized Graphene”
Mohd Zaifuddin Nursakinah Binti, Yasuhide Ohno, Shogo Okamoto, Kenzo Maehashi, Kenji Kawahara, Hiroki Ago, and Kazuhiko Matsumoto
“Efficient suppression of carrier scattering at the interface between reduced graphene oxide flakes”
Ryota Negishi, Michihiro Matsuzaki, Yasuhide Ohno, Kenzo Maehashi, Kazuhiko Matsumoto, and Yoshihiro Kobayashi
“Transistor Operation of Bilayer Graphene with Ionic Liquid Based Electrolyte”
Yusuke Yamashiro, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, and Kazuhiko Matsumoto
“Horizontally Aligned Carbon Nanotube Field-Effect Transistor for Biosensing Application”
Yasuhide Ohno, Satoshi Okuda, Kenzo Maehashi, and Kazuhiko Matsumoto
“Direct Graphene Growth with Multi Metal Layers without Using Chemical Vapor Deposition”
Takashi Ikuta, Kenta Gumi, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, and Kazuhiko Matsumoto
“Raman Spectra Mapping of Self-aligned Carbon Nanowalls”
Toshio Kawahara, Satarou Yamaguchi, Yasuhide Ohno, Kenzo Maehashi, Kazuhiko Matsumoto, Kazumasa Okamoto, Risa Utsunomiya, Teruaki Matsuba, Yuki Matsuoka, and Masamichi Yoshimura
“Detection of Protein by Reduced Graphene Oxide Field-Effect Transistor”
Masaki Hasegawa, Yuki Hirayama, Yasuhide Ohno, Kenzo Maehashi, and Kazuhiko Matsumoto
“Graphene-Based Devices for Chemical and Biological Sensors” (Invited)
Kenzo Maehashi, Yasuhide Ohno, Koichi Inoue and Kazuhiko Matsumoto

The 20th Int. Workshop on Active-Matrix Flatpanel Displays and Devices (2013) July 2-5, Kyoto, Japan
“Advances in Graphene Device & Bio-Sensor Applications” (Invited)
Kazuhiko Matsumoto, Kenzo Maehashi, Yasuhide Ohno, and Koichi Inoue
NT13 Satellite Symposia (2013) June 29, Tallinn, Estonia
“Nano carbon devices & applications” (Invited)
Kazuhiko Matsumoto, Takafumi Kamimura, Kenzo Maehashi, and Yasuhide Ohno
The 40th Int. Symp. Compound Semiconductors (2013) May 19 – 23, Kobe, Japan
“Improving Electrical Performance of Graphene Oxide Thin Films by Alcohol Vapor Treatment”
Michihiro Matsuzaki, Ryota Negishi, Yasuhide Ohno, Kenzo Maehashi, Kazuhiko Matsumoto, and Yoshihiro Kobayashi
“Ionic-Liquid-Gated Bilayer Graphene Transistor”
Yusuke Yamashiro, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, and Kazuhiko Matsumoto
The 9th International Thin-Film Transistor Conference (2013) March 1 – 2, Tokyo, Japan
“Chemical and Biological Sensing Based on Horizontally Aligned Carbon Nanotube Field-Effect Transistors”
Kenzo Maehashi, Yasuhide Ohno, Satoshi Okuda, Koichi Inoue and Kazuhiko Matsumoto
“Fabrication of Graphene Field-Effect Transistors Using Laser Irradiation”
Keisuke Koshida, Kenta Gumi, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, and Kazuhiko Matsumoto

2012

Oxford University Special Workshop on “Bio-Nanomaterical Devices” (2012) Dec. 21, Osaka, Japan
“Graphene-based chemical and biological sensors” (Invited)
Kenzo Maehashi, Yasuhide Ohno, Koichi Inoue and Kazuhiko Matsumoto
3rd Int. Symp. Graphene Devices (2012) Nov. 5-9, Saint-Aubin, France
“Recent advance in graphene-based nano-biosensors” (Invited)
Kazuhiko Matsumoto, Kenzo Maehashi, Yasuhide Ohno, and Koichi Inoue
25th Int. Microprocesses and Nanotechnology Conference (2012) Oct. 30 - Nov. 2, Kobe, Japan
“Direct Graphene Growth with Multi Metal Layers without using Chemical Vapor Deposition”
Kenta Gumi, Yasuhide Ohno, Koichi Inoue, Kenzo Maehashi and Kazuhiko Matsumoto
“Carbon Nanotube-based Memory with Atomic-Layer-Deposited Dielectrics”
Yusuke Fujii, Takafumi Kamimura, Yasuhide Ohno, Koichi Inoue, Kenzo Maehashi and Kazuhiko Matsumoto
“Highly Sensitive Biosensors based on Fragment-Modified Graphene FET”
Shogo Okamoto, Takeshi Ikuta, Sakinah Zaifuddin, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue and Kazuhiko Matsumoto
“Position-Controlled Direct Graphene Synthesis on SiO2 Surface by Laser Irradiation”
Keisuke Koshida, Kenta Gumi, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue and Kazuhiko Matsumoto
“Sensor application based on CVD-synthesized graphene”
Sakinah Zaifuddin, Shogo Okamoto, Takeshi Ikuta, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue and Kazuhiko Matsumoto
2012 Int. Conf. Solid State Devices and Materials (2012) Sept. 25-27, Kyoto, Japan
“Electric-field dependence of G-band spectra in bilayer graphene”
Yusuke Yamashiro, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, and Kazuhiko Matsumoto
“Efficient Reduction and Restoration of Graphene oxide films as a Channel in Field Effect Transistor: Toward Sensor applications”
Ryota Negishi, Kazuki Kuramoto, Yasuhide Ohno, Takayuki Nishino, Tomohiro. Yamaguchi, Kenzo Maehashi, Kazuhiko Matsumoto, Koji Ishibashi and Yoshihiro Kobayashi
Int. Conf. Nanoscience + Technology (ICN+T2012) (2012) Jul. 23-27, Paris, France
“Electrical-Biosensing Performance of Horizontally Aligned Carbon Nanotube Device on Quartz Substrate”
Kenzo Maehashi, Satoshi Okuda, Keisuke Koshida, Yasuhide Ohno, Koichi Inoue, and Kazuhiko Matsumoto
“Ionic-liquid-Gate Control of Bilayer Graphene”
Yusuke Yamashiro, Takashi Ikuta, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, and Kazuhiko Matsumoto
“Highly Sensitive Biosensors Based on Fragment Antigen-Binding Modified Graphene Field-Effect Transistors”
Yasuhide Ohno, Shogo Okamoto, Kenzo Maehashi, and Kazuhiko Matsumoto
13th Int. Conf. the Science and Application of Nanotubes (2012) Jun. 24-29, Brisbane, Australia
“Carrier transport properties of multilayer graphene with turbostratic structure”
Ryota Negishi, Yasuhide Ohno, Kenzo Maehashi, Kazuhiko Matsumoto, Yoshihiro Kobayashi
Int. Symp. Carbon Nanotube Nanoelectronics (2012) Jun. 11 - 13, Nagoya, Japan
“Electrical Detection of Proteins Based on Carbon Nanotubes Field-Effect Transistors with Aligned Channels”
Keisuke Koshida, Satoshi Okuda, Yasuhie Ohno, Kenzo Maehashi, Koichi Inoue, and Kazuhiko Matsumoto
“Carrier Transport Properties of Turbostratic Multilayer Graphene Grown by Chemical Vapor Deposition”
Ryota Negishi, Yasuhide Ohno, Kenzo Maehashi, Kazuhiko Matsumoto, Yoshihiro Kobayashi
“Carbon Nanotube Bio Sensor”
Kazuhiko Matsumoto, Satoshi Okuda, Yasuhie Ohno, Kenzo Maehashi, and Koichi Inoue
The 14th Int. Meeting on Chemical Sensors (2012) May 20 – 23, Nuremberg, Germany
“Selective ion sensors based on ionophore-modified graphene field-effect transistors”
Kenzo Maehashi, Yasuyuki Sofue, Shogo Okamoto, Yasuhide Ohno, Koichi Inoue, Kazuhiko Matsumoto tion”
Shogo Okamoto, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, Kazuhiko Matsumoto

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