Kyushu University Academic Staff Educational and Research Activities Database
List of Presentations
Yoko Yamanishi Last modified date:2018.06.20

Professor / 流体医工学 / Department of Mechanical Engineering / Faculty of Engineering


Presentations
1. @Yoko Yamanishi, Emerging Functions of Plasma-induced Bubbles, The 15th International Conference of Advanced Materials (IUMRS-ICAM 2017), 2017.09.
2. @Yoko Yamanishi, Emerging Functions of Electrically-induced bubbles, 九州大学-OISTシンポジウム, 2018.01.
3. Yoko Yamanishi, Daisuke Matsumura, Yuya Fujiwara, Takashi Ohgawara and Yoshikazu Haramoto, Local Magnetization and Sensing of Flexible Magnetic Tag for Long-Term Monitoring under Wet Environment, Transducers 2017, 2017.06.
4. Yoko Yamanishi, Emerging Functions of Plasma-induced Bubbles, The 15th International Conference of Advanced Materials (IUMRS-ICAM 2017), 2017.09.
5. Keita Ichikawa, Yudai Fukuyama, Shigo Maeda and Yoko Yamanishi, Direct Etching and Implanted Metalization in Soft Matter, 21st Int. Conf. on Miniaturized Systems for Chemistry and Life Sciences (micro-TAS 2017), 2017.10.
6. Yudai Fukuyama and Yoko Yamanishi, Implantable Drug Delivery Systems (IDDS) with Release-on-demand by Electrically Induced Bubbles, 21st Int. Conf. on Miniaturized Systems for Chemistry and Life Sciences (micro-TAS 2017), 2017.10.
7. Yudai Fukuyama, Keita Ichikawa, Shingo Maeda, Yoko Yamanishi, Fundamental Study on Electrically-Induced Bubble Catalytic Plating Technology, 2017 International Symposium on Micro-NanoMechatronics and Human Science (MHS2017), 2017.12.
8. 山西 陽子, 田中亮太郎, Yuta Arakawa, Gene transfer by circulating plasma-bubble flow, The 28th International Conference on Micro Electro Mechanical Systems (MEMS2017),, 2017.01.
9. Yoko Yamanishi, Emerging Functions of Plasma-Induced Bubbles, 2016 MRS Fall Meeting&Exhibit, 2016.11.
10. Yoko Yamanishi, Emerging Functions of Electrically-induced Bubble Injector, 11th IEEE Annual International Conference on Nano/Micro Engineered and Molecular Systems (NEMS), 2016.10.
11. 山西 陽子, Yuta Arakawa, Keishi Ohtonari, Gene transfer by circulating plasma-bubble flow, 6th International Conference on Plasma Medicine (ICPM-6), 2016.09.
12. Takuya Kambayashi, 山西 陽子, Fabrication of 3D-Electrode as Injector of Reagent-laden Bubbles, Asia-Pacific Conference of Transducers and Micro-NanoTechnology 2016 (APCOT2016), 2016.06.
13. Sohei Itabashi, Takuya Kambayashi, Takatoshi Shimamura, Kazuki Takahashi, 山西 陽子, In-Situ Cellular-Scale Injection for Alive Plants by Micro-Bubble Injector, Proceedings of the 11th IEEE Annual International Conference on Nano/Micro Engineered and Molecular Systems (NEMS), 2016.04.
14. So Takasawa, 山西 陽子, High-Speed and Simple Nanoscale Lithography by Local Heating for Micro-nanoscale Fluidic Channel, Proceedings of the 11th IEEE Annual International Conference on Nano/Micro Engineered and Molecular Systems (NEMS), 2016.04.
15. Keishi Ohtonari, Yuta Arakawa, Hiroki Ogata, Daisuke Tsujimoto, 山西 陽子, High-throughput Injection by Circulating Plasma-Bubbles Laden Flows, Proceedings of the 11th IEEE Annual International Conference on Nano/Micro Engineered and Molecular Systems (NEMS), 2016.04.
16. Katsuyuki Hayashi, Takudo Shu, So Takasawa, Yoko Yamanishi, High-speed and High-throughput Protein Crystallization and Ablation by Electrically-induced Bubbles, Proceedings of the 11th IEEE Annual International Conference on Nano/Micro Engineered and Molecular Systems (NEMS), 2016.04.
17. 山西 陽子, Emerging Functions of Electrically-induced Bubble Injector, Proceedings of the 11th IEEE Annual International Conference on Nano/Micro Engineered and Molecular Systems (NEMS), 2016.04.
18. Y. Arakawa, M. Ohmura, D. Tsujimoto, Yoko Yamanishi, Plasma-cavitation pencil cutter for powerful micro-processing, 18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015, 2015.08, We have successfully developed novel processing equipment based on the combined of cavitation and plasma irradiation. This technique uses the strong points of the powerful ablation of cavitation as well as plasma irradiation. The novelty of the technique enable to process not only conductive material but also non-conductive material such as polymer, CFRP (carbon fiber reinforced plastic) and silicon, which is unlike conventional wire electric discharge machine. Also, the directional transportation of bubbles provides positioning accuracy of micro-processing. The structure of the plasma-cavitation pencil cutter is low cost and very simple structure. This technology contributes to effective processing of wide range of materials such as metal plate, polymer, carbon-fiber and biomaterials..
19. T. Kobayashi, Yoko Yamanishi, Radical induced protein crystallization by radical amplification microfluidic chip, 18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015, 2015.08, The paper reports plasma induced radical concentration microfluidic chip and radical induced protein crystallization. The novelty of our work is collection and concentration of radical species and which is confirmed by ESR (Electron Spin Resonance) measurement. Formation of bubbles which has a relatively large surface area accelerates the production of radical species at air-liquid interface and these bubbles are concentrated by the circulating flow in the microfluidic chip. It was also confirmed that the radical-induced protein crystal are produced with increasing of the circulation time. This microfluidic chip contributes to the protein crystal production and bio-medical applications..
20. Akifumi Takada, Shingo Nakamura, Yoko Yamanishi, Shinji Hashimura, Sumito Nagasawa, Takanobu Kogure, Shingo Maeda, Design of electrostatic adhesion device using the flexible electrodes, 2014 International Symposium on Micro-NanoMechatronics and Human Science, MHS 2014, 2015.01, This paper presents a fabrication method of electrostatic adhesion device using flexible electrodes. When an electric charge is stored in the bipolar plate of a capacitor, an electrostatic force acts. We perform adhesion to a wall surface using this electrostatic force. Using the electrostatic force, electrostatic adhesion force is controlled by the electricity. The flexible electrodes are created by spraying a solution containing dispersed carbon black onto a silicon rubber. Flexibility of the device can avoid damage to its own and adapt to a variety of wall surface shapes. In experiments, two kinds of device surface structures were created. One is just flat and the other is pillar arrays. The pillar arrays structure was adopted from the viewpoint of biomimetic. Electrostatic adhesion force of these structures was measured with shear and tensile testing machines..
21. Kazuki Takahashi, Shun Omi, Yoko Yamanishi, Minimally-invasive local injection by electrically-driven narrow orifice channel, 2014 International Symposium on Micro-NanoMechatronics and Human Science, MHS 2014, 2015.01, We have successfully developed minimally-invasive needle-free bubble injector designed for the usage in air. The novelty is that the minimally-invasiveness of injection whose resolution is less than 10 μm, and hence cellular-scale injection can be possible without any pain. The novelty of the present techniques are (1) unique robust thick structure at the tip of the narrowed glass capillary for operation in air, (2) damper structure produce closed space to fill in reagent which enabled the injector to be used in air and (3) construction part to support inner probe to make self-aligned coaxial positioning for accurate injection. The injector can be used for any kind of materials with various hardness, owing to the strong impact of cavitation phenomenon when the high-speed micro-bubbles are collapsed. The fine adjustment of injection can be controlled by the number of applied electric pulses. The developed injector can be used for wide range of biomedical study, especially in gene therapy. This technique has advantages over the conventional electroporation or ultrasound operation in terms of localization of injection and ability of transportation of material..
22. Takuya Kobayashi, Keishi Ohtonari, Yoko Yamanishi, Extract of radical species by circulating reactive interface of microfluidic chip for protein crystallization, 19th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2015, 2015, The paper reports radical-assisted protein crystallization by using circulating reactive interface of microfluidic chip. The novelty of our work is separation and extraction of radical species from plasma irradiation and to produce reactive interface in micro-fluidic chip. It was also confirmed that several radicals species are detected by ESR (Electron Spin Resonance) measurement and the radical-induced protein crystal are produced for low concentration of protein. This microfluidic chip contributes to the protein crystal production and bio-medical applications..
23. So Takasawa, Yuya Fujiwara, Takuya Kobayashi, Mikiko Ohmura, Hiroto Kamegawa, Yoko Yamanishi, Micro-bubble ring genration by electrically-driven high-speed bubble strike under micro-fludic environment, 18th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2014, 2014, We have succeeded in generation of micro-bubble ring in microfluidic environment. High speed ejection of electrically driven mono-dispersed micro-bubbles enables to penetrate mother bubble, which forces to produce circulating motion in the bubble, and bubble rings are successfully produced. This is the new protocol to produce bubble ring in microfluidic environment for the first time. This micro-bubble ring carries a strong vortex characteristic which can contribute to efficient mixing in closed micro-space and also cleaning of micro-channel wall..
24. Kazuki Takahashi, Wataru Kawaguchi, Yohei Hamano, Shunsuke Hosoda, Yuta Arakawa, Yoko Yamanishi, Pelectrically induced bubble capillary-poration, 18th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2014, 2014, Minimally-intrusive ablation of cell has been successfully carried out by using the breakdown of electrically-induced bubble. This novel method of fine ablation method provides non-thermal damage on the surface of biological cell as well as minimally invasiveness because this resolution is depend on the width of capillary bubble. This new method of ablation contributes to cell surgery or precise fabrication of soft materials..
25. H. Kuriki, S. Takasawa, M. Iwabuchi, K. Ohsumi, T. Suzuki, T. Higashiyama, S. Sakuma, F. Arai, Yoko Yamanishi, Multiphase-laden gas-liquid interface injection for the versatile gene transfer, 17th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2013, 2013.01, We have successfully carried out gene transfer using electrically induced bubble knife. The air-liquid interfaces of the dispensed bubbles have novel characteristics which can carry the various kinds of the materials in different phase and viscosity of solution. This technique has advantages in high efficiency of injection of limited amount of valuable samples such as designed m-RNA. In this paper, we demonstrated m-RNA encoding 3xFLAG-GST into xenopus oocyte to be sure that electrically induced bubble knife has ability to injection chemically unstable and biocompatibility. Furthermore, we injected fluorescent beads whose size was 2.1 μm into BY-2 cell as multiphase injection..
26. Imran Azman, D. Tsujimoto, S. Sameshima, F. Arai, Yoko Yamanishi, Disintegration and conveyance of dielectric barrier discharge-generated micro-plasma ball under water, 2013 International Symposium on Micro-NanoMechatronics and Human Science, MHS 2013, 2013, For the present study, we have successfully fabricated a novel cylinder-shaped device that is able to produce mono-dispersed plasma bubbles under atmospheric pressure and water environment. The generated plasma has characteristics of low temperature, which was generated by dielectric discharge barrier. Also, the plasma bubble has been successfully transported downstream with distance of 1.20 [cm]..
27. Hiroki Kuriki, Yoko Yamanishi, Shinya Sakuma, Satoshi Akagi, Fumihito Arai, Dispensing of mono-dispersed micro-bubbles for cell ablation, 2013 IEEE International Conference on Robotics and Automation, ICRA 2013, 2013, We have successfully produced mono-dispersed micro-gas bubbles for less than around 10 μm diameter by micro-bubble knife which produce micro-bubble in an electrically induced ultrasonic field. The discharged output power and conductive area of micro-electrode in micro-bubble knife which cuts the cell by micro-bubble were controlled by glass shell insulation around the copper micro-wire. A small space which is called 'bubble reservoir' between the wire and glass tip contributes to stabilize the electric discharge and directional bubble generation. The directionally dispensed bubbles can be used for processing of soft materials such as biological cells. For the present study the cell membrane has successfully processed with a few μm order resolution..