dr. Shinnosuke Kawasaki

1. Modeling and Characterization of Pre-Charged Collapse-Mode CMUTs
   M. Saccher; S. Kawasaki; J. H. Klootwijk; R. Van Schaijk; R. Dekker;
   IEEE Open Journal of Ultrasonics, Ferroelectrics, and Frequency Control,
   Volume 3, pp. 14-28, 2023. DOI: 10.1109/OJUFFC.2023.3240699

2. A Comparative Study of Si3N4 and Al2O3 as Dielectric Materials for Pre-Charged Collapse-Mode CMUTs
   Marta Saccher; Rob van Schaijk; Shinnosuke Kawasaki; Johan H. Klootwijk and Amin Rashidi; Vasiliki Giagka; Alessandro Stuart Savoia; Ronald Dekker;
   In in Proc. IEEE Int. Ultrasonics Symposium (IUS) 2023,
   2023.
   document

3. Focused ultrasound neuromodulation on a multiwell MEA
   M. Saccher; S. Kawasaki; Proietti Onori, M.; van Woerden, G. M.; V. Giagka; R. Dekker;
   Bioelectronic Medicine,
   Volume 8, Issue 2, pp. 1-10, January 2022. DOI: 10.1186/s42234-021-00083-7
   document

4. Focused ultrasound neuromodulation on a multiwell MEA
   Marta Saccher; Shinnosuke Kawasaki; Martina Proietti Onori; Geeske M. van Woerden; Vasiliki Giagka; Ronald Dekker;
   Bioelectronic Medicine,
   Volume 8, 2022. DOI: 10.1186/s42234-021-00083-7

5. Bulk Acoustic Wave Based Microfluidic Particle Sorting With Capacitive Micromachined Ultrasonic Transducers
   Shinnosuke Kawasaki; Jia-Jun Yeh; Marta Saccher; Jian Li; Ronald Dekker;
   In 35th Intl. Conf. on Micro Electro Mechanical Systems (MEMS 2022),
   2022. DOI: 10.1109/MEMS51670.2022.9699807

6. Time-efficient low power time/phase-reversal beamforming for the tracking of ultrasound implantable devices
   M. Saccher; S.S. Lolla; S. Kawasaki; R. Dekker;
   In IEEE International Ultrasonics Symposium (IUS),
   2022. DOI: 10.1109/IUS54386.2022.9957652

7. A microwatt telemetry protocol for targeting deep implants
   S. Kawasaki; I. Subramaniam; M. Saccher; R. Dekker;
   In Proc. IEEE International Ultrasonics Symposium,
   2021. DOI: 10.1109/IUS52206.2021.9593603

8. Schlieren Visualization of Focused Ultrasound Beam Steering for Spatially Specific Stimulation of the Vagus Nerve In Proc. 2021 10th , Online, IEEE, May 4-6 2021.
   Shinnosuke Kawasaki; Eric Dijkema; Marta Saccher; Vasiliki Giagka; Jean Schleipen; Ronald Dekker;
   In 10th International IEEE/EMBS Conference on Neural Engineering (NER),
   Online, May 4-6 2021. 2021.
   document

9. The long-term reliability of pre-charged CMUTs for the powering of deep implanted devices
   M. Saccher; S. Kawasaki; R. Dekker;
   In Proc. IEEE International Ultrasonics Symposium,
   2021. DOI: 10.1109/IUS52206.2021.9593683

10. Pre-charged collapse-mode capacitive micromachined ultrasonic transducer (CMUT) for broadband ultrasound power transfer
    S. Kawasaki; Y. Westhoek; I. Subramaniam; M. Saccher; R. Dekker;
    In Proc. IEEE Wireless Power Transfer Conference,
    2021. DOI: 10.1109/WPTC51349.2021.9458104

11. Pressure measurement of geometrically curved ultrasound transducer array for spatially specific stimulation of the vagus nerve
    S. Kawasaki; V. Giagka; M. de Haas; M. Louwerse; V. Henneken; C. van Heesch; R. Dekker;
    In Proc. IEEE Conf. on Neural Eng. (NER) 2019,
    San Francisco, CA, USA, March 2019.
    
    Abstract: ...

    Vagus nerve stimulators currently on the market can treat epilepsy and depression. Recent clinical trials show the potential for vagus nerve stimulation (VNS) to treat epilepsy, autoimmune disease, and traumatic brain injury. As we explore the benefits of VNS, it is expected that more possibilities for a new treatment will emerge in the future. However, existing VNS relies on electrical stimulation, whose limited selectivity (due to its poor spatial resolution) does not allow for any control over which therapeutic effect to induce. We hypothesize that by localizing the stimulation to fascicular level within the vagus nerve with focused ultrasound (US), it is possible to induce selective therapeutic effects with less side effects. A geometrically curve US transducer array that is small enough to wrap around the vagus nerve was fabricated. An experiment was conducted in water, with 48 US elements curved in a 1 mm radius and excited at 15 MHz to test the focusing capabilities of the device. The results show that the geometrical curvature focused the US to an area with a width and height of 110 μm and 550 μm. This will be equivalent to only 2.1% of the cross section of the vagus nerve, showing the potential of focused US to stimulate individual neuronal fibers within the vagus nerve selectively.
    
    document

12. Pressure measurement of geometrically curved ultrasound transducer array for spatially specific stimulation of the vagus nerve
    Kawasaki, S.; Giagka, V.; de Haas, M.; Louwerse, M.; Henneken, V.; van Heesch, C.; Dekker, R.;
    In 9th International IEEE/EMBS Conference on Neural Engineering. IEEE,
    2019. DOI: 10.1109/NER.2019.8717064

13. Silicon based microfluidic device with integrated electrodes for the assessment of cellular stiffness
    S. Kawasaki; M. Kluba; R.Dekker;
    In Design of Medical Devices Conference (DMD Europe),
    2017.

14. A low-cost electrical read-out system for cell stiffness measurement using silicon based microfluidic device
    S. Kawasaki; M. M. Kluba; R. Dekker;
    In ICT.OPEN,
    2017.

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