Zobrazeno 1 - 10
of 152
pro vyhledávání: '"Eiji Tokunaga"'
Publikováno v:
Micro, Vol 4, Iss 3, Pp 412-425 (2024)
Understanding the spatial distribution (SD) of unicellular organisms is crucial for comprehending population dynamics and adaptive strategies at the microbial scale. These behaviors include the formation of ordered structures through intercellular in
Externí odkaz:
https://doaj.org/article/c50bb9870fd6415bbf449e280fa63f3f
Publikováno v:
Photonics, Vol 11, Iss 6, p 556 (2024)
In absorption spectroscopy, it is challenging to detect absorption peaks with significant differences in their intensity in a single measurement. We enable high-dynamic-range measurements by dispersing scatterers within a sample to create a broad dis
Externí odkaz:
https://doaj.org/article/5d8bc23484fc42609693366f82f80ed4
Autor:
Kyohei Yamashita, Tomoka Yamaguchi, Shigehiro Ikeno, Asuka Koyama, Tetsuo Aono, Ayaka Mori, Shoto Serizawa, Yuji Ishikawa, Eiji Tokunaga
Publikováno v:
Micromachines, Vol 15, Iss 3, p 410 (2024)
Previous studies of motility at low temperatures in Chlamydomonas reinhardtii have been conducted at temperatures of up to 15 °C. In this study, we report that C. reinhardtii exhibits unique motility at a lower temperature range (−8.7 to 1.7 °C).
Externí odkaz:
https://doaj.org/article/8c8cd07fbbeb4d6d99f790c9a969fde8
Autor:
Kairi Morozumi, Hironori Kanemaru, Akihiro Okada, Tomonari Ichimiya, Takayoshi Kobayashi, Eiji Tokunaga
Publikováno v:
Applied Sciences, Vol 14, Iss 5, p 2076 (2024)
When an electric field is applied between two electrodes facing each other immersed in a liquid, the interfacial Pockels effect, a refractive index change proportional to the electric field, occurs in the electric double layer at the liquid–electro
Externí odkaz:
https://doaj.org/article/4146e1ea09724ce2bba85889414a85b4
Publikováno v:
Plants, Vol 13, Iss 4, p 510 (2024)
This study confirms for the first time that the significant red coloration of Euglena gracilis is induced by bonito stock (BS), a traditional Japanese food, and intense red light exposure (605~660 nm, 1000~1300 µmol photons/m2/s). Under the conditio
Externí odkaz:
https://doaj.org/article/9bf3c43a19454188bf96593ebe82add1
Publikováno v:
Applied Sciences, Vol 13, Iss 18, p 10284 (2023)
The Pockels coefficient of interfacial water between bulk water and a Ti electrode was estimated from the electroreflectance spectra (ΔR/R) to be r13≈−150 pm/V as the maximum value of magnitude, which is comparable in magnitude to the largest co
Externí odkaz:
https://doaj.org/article/22001a3ddc70480fb833a2af066a34f1
Publikováno v:
Photonics, Vol 10, Iss 7, p 754 (2023)
It is important to avoid the overestimation of absorption due to scattering when using absorption spectroscopy to measure scattering samples. We approached this issue by placing the sample inside an integrating sphere (IS) to collect the scattered li
Externí odkaz:
https://doaj.org/article/f17eb8f78b574e24bc2328db3b074883
Autor:
Tetsuo Aono, Kyohei Yamashita, Masafumi Hashimoto, Yuji Ishikawa, Kentaro Aizawa, Eiji Tokunaga
Publikováno v:
Micromachines, Vol 14, Iss 4, p 813 (2023)
Although the phenomenon of collective order formation by cell–cell interactions in motile cells, microswimmers, has been a topic of interest, most studies have been conducted under conditions of high cell density, where the space occupancy of a cel
Externí odkaz:
https://doaj.org/article/d1c39dda88f447a992d49a22ca2e1504
Autor:
Nathalie Vermeulen, Daniel Espinosa, Adam Ball, John Ballato, Philippe Boucaud, Georges Boudebs, Cecília L A V Campos, Peter Dragic, Anderson S L Gomes, Mikko J Huttunen, Nathaniel Kinsey, Rich Mildren, Dragomir Neshev, Lázaro A Padilha, Minhao Pu, Ray Secondo, Eiji Tokunaga, Dmitry Turchinovich, Jingshi Yan, Kresten Yvind, Ksenia Dolgaleva, Eric W Van Stryland
Publikováno v:
JPhys Photonics, Vol 5, Iss 3, p 035001 (2023)
In its 60 years of existence, the field of nonlinear optics has gained momentum especially over the past two decades thanks to major breakthroughs in material science and technology. In this article, we present a new set of data tables listing nonlin
Externí odkaz:
https://doaj.org/article/a1e4e644807b4350bccc5290ddbdc5be
Publikováno v:
Micromachines, Vol 13, Iss 11, p 1842 (2022)
A magnetic micro stirrer bar (MMSB) is used in the mixing operation of microfluidic devices. We have established a low-cost and easy method to make MMSBs using magnetic (neodymium magnets, magnet sheets) or non-magnetic powders (SUS304) as materials.
Externí odkaz:
https://doaj.org/article/24f9e808f930442fafb9981e022047c4