Zobrazeno 1 - 10
of 108
pro vyhledávání: '"Hironari Takehara"'
Autor:
Ryoma Okada, Maya Mizuno, Tomoaki Nagaoka, Hironari Takehara, Makito Haruta, Hiroyuki Tashiro, Jun Ohta, Kiyotaka Sasagawa
Publikováno v:
Sensors, Vol 24, Iss 13, p 4138 (2024)
In this study, we developed and demonstrated a millimeter-wave electric field imaging system using an electro-optic crystal and a highly sensitive polarization measurement technique using a polarization image sensor, which was fabricated using a 0.35
Externí odkaz:
https://doaj.org/article/467d3a586bca4100bef5309d6e7078f1
Autor:
Kiyotaka Sasagawa, Ryoma Okada, Yoshihiro Akamatsu, Maya Mizuno, Hironari Takehara, Makito Haruta, Hiroyuki Tashiro, Jun Ohta
Publikováno v:
Sensors, Vol 24, Iss 4, p 1249 (2024)
We propose and demonstrate a method for equivalent time sampling using image sensors to selectively detect only the target frequency. Shortening the exposure time of the image sensor and using equivalent time sampling allows for the detection of freq
Externí odkaz:
https://doaj.org/article/fe9d3c884a964e568f8acb9474280112
Autor:
Nicha Sato, Yasumi Ohta, Makito Haruta, Hironari Takehara, Hiroyuki Tashiro, Kiyotaka Sasagawa, Oratai Jongprateep, Jun Ohta
Publikováno v:
AIP Advances, Vol 13, Iss 2, Pp 025026-025026-8 (2023)
Dopamine (DA) is the most important neurotransmitter involved in motor control. Abnormalities in neurotransmitter levels may indicate brain disorders, such as Parkinson’s disease and depression. Herein, electrochemical sensors containing metal oxid
Externí odkaz:
https://doaj.org/article/049a2f7ab131402cb536a33643492e92
Autor:
Latiful Akbar, Virgil Christian Garcia Castillo, Joshua Philippe Olorocisimo, Yasumi Ohta, Mamiko Kawahara, Hironari Takehara, Makito Haruta, Hiroyuki Tashiro, Kiyotaka Sasagawa, Masahiro Ohsawa, Yasemin M. Akay, Metin Akay, Jun Ohta
Publikováno v:
International Journal of Molecular Sciences, Vol 24, Iss 7, p 6654 (2023)
In this research, we combined our ultralight micro-imaging device for calcium imaging with microdialysis to simultaneously visualize neural activity in the dorsal raphe nucleus (DRN) and measure serotonin release in the central nucleus of the amygdal
Externí odkaz:
https://doaj.org/article/60370974ea7b4bc39a9a59d87c280544
Autor:
Erus Rustami, Kiyotaka Sasagawa, Kenji Sugie, Yasumi Ohta, Hironari Takehara, Makito Haruta, Hiroyuki Tashiro, Jun Ohta
Publikováno v:
Sensors, Vol 23, Iss 7, p 3695 (2023)
Hybrid emission filters, comprising an interference filter and an absorption filter, exhibit high excitation light rejection performance and can act as lensless fluorescent devices. However, it has been challenging to produce them in large batches ov
Externí odkaz:
https://doaj.org/article/57574d92acea471397c13a8b1a609fff
Autor:
Yasumi Ohta, Mark Christian Guinto, Takashi Tokuda, Mamiko Kawahara, Makito Haruta, Hironari Takehara, Hiroyuki Tashiro, Kiyotaka Sasagawa, Hirotaka Onoe, Reona Yamaguchi, Yoshinori Koshimizu, Kaoru Isa, Tadashi Isa, Kenta Kobayashi, Yasemin M. Akay, Metin Akay, Jun Ohta
Publikováno v:
IEEE Access, Vol 9, Pp 127937-127949 (2021)
Optogenetics is a powerful tool for controlling biological functions using light. Optical fibers have been extensively utilized in optical stimulation devices for optogenetics. However, the use of optical fibers results in a small photo-stimulation r
Externí odkaz:
https://doaj.org/article/c817aae2c6ff4211a1a582b24ada8946
Autor:
Kuang-Chih Tso, Yuki Fukunari, Mizuki Hagita, Makito Haruta, Hironari Takehara, Hiroyuki Tashiro, Kiyotaka Sasagawa, Pu-Wei Wu, Jun Ohta
Publikováno v:
AIP Advances, Vol 11, Iss 9, Pp 095305-095305-9 (2021)
Long-term operational stability and high-efficiency neuron stimulation are key to the development of retinal prostheses. In this research, a retinal device with a chemically inert and flexible substrate is introduced, which satisfies these requiremen
Externí odkaz:
https://doaj.org/article/ddd1ff82afd24d12a379018d994bccbc
Autor:
Thanet Pakpuwadon, Kiyotaka Sasagawa, Mark Christian Guinto, Yasumi Ohta, Makito Haruta, Hironari Takehara, Hiroyuki Tashiro, Jun Ohta
Publikováno v:
Frontiers in Neuroscience, Vol 15 (2021)
In this study, we propose a complementary-metal-oxide-semiconductor (CMOS) image sensor with a self-resetting system demonstrating a high signal-to-noise ratio (SNR) to detect small intrinsic signals such as a hemodynamic reaction or neural activity
Externí odkaz:
https://doaj.org/article/08f828e76a4e46fd9c4441fe1d3d4982
Autor:
Romeo Rebusi, Joshua Philippe Olorocisimo, Jeric Briones, Yasumi Ohta, Makito Haruta, Hironari Takehara, Hiroyuki Tashiro, Kiyotaka Sasagawa, Jun Ohta
Publikováno v:
Frontiers in Neuroscience, Vol 15 (2021)
Fluorescence imaging devices have been indispensable in elucidating the workings of the brain in living animals, including unrestrained, active ones. Various devices are available, each with their own strengths and weaknesses in terms of many factors
Externí odkaz:
https://doaj.org/article/b469898d726d42219a19765361015143
Autor:
Yasumi Ohta, Takaaki E. Murakami, Mamiko Kawahara, Makito Haruta, Hironari Takehara, Hiroyuki Tashiro, Kiyotaka Sasagawa, Jun Ohta, Metin Akay, Yasemin M. Akay
Publikováno v:
International Journal of Molecular Sciences, Vol 23, Iss 3, p 1114 (2022)
Dopamine (DA) is the key regulator of reward behavior. The DA neurons in the ventral tegmental area (VTA) and their projection areas, which include the prefrontal cortex (PFC), nucleus accumbens (NAc), and amygdala, play a primary role in the process
Externí odkaz:
https://doaj.org/article/c33d9cac70ef4760a17ebae3e3be96c0