Kyushu University [Satoshi Utsunomiya (Associate Professor) Faculty of Sciences, Department of Chemistry]

Keyword Search

Researcher information

Satoshi Utsunomiya
Associate Professor
Inorganic Reaction Chemistry
Department of Chemistry
Faculty of Sciences
Last modified date：2023.10.03

Graduate School

Department of Chemistry
Graduate School of Sciences

Undergraduate School

Department of Chemistry
School of Sciences

Other Organization

Central Institute of Radioisotope Science and Safety Management

E-Mail

Homepage

Phone

Fax

Academic Degree

Country of degree conferring institution (Overseas)

Field of Specialization

Total Priod of education and research career in the foreign country

Research

Educational

Unauthorized reprint of the contents of this database is prohibited.

1.	Yokoo, Hiroki; Oki, Takumi; Uehara, Motoki; Winarni, Ilma Dwi; Yamaji, Keiko; Fukuyama, Kenjin; Ohara, Yoshiyuki; Ohnuki, Toshihiko; Hochella, Michael F.; Utsunomiya, Satoshi, Geochemistry of barium ions associated with biogenic manganese oxide nanoparticles generated by a fungus strain: Implications for radium sequestration in uranium mill tailings, GONDWANA RESEARCH, 10.1016/j.gr.2021.09.020, 110, 270-282, 2022.10.
2.	A. Ochiai, J. Imoto, M. Suetake, T. Komiya, G. Furuki, R. Ikehara, S. Yamasaki, G. Law, T. Ohnuki, B. Grambow, R. C. Ewing, and S. Utsunomiya, Uranium dioxides and debris fragments released to the environment with cesium-rich microparticles from the Fukushima Daiichi Nuclear Power Plant, Environmental Science & Technology, 10.1021/acs.est.7b06309, 52 (2018) 2586-2594, 2018.02.
3.	J. Imoto, A. Ochiai, G. Furuki, M. Suetake, R. Ikehara, K. Horie, M. Takehara, S. Yamasaki, K. Nanba, T. Ohnuki, G. T. W. Law, B. Grambow, R. C. Ewing, and S. Utsunomiya (Two authors contributed equally), Isotopic signature and nano-texture of cesium-rich micro-particles: Release of uranium and fission products from the Fukushima Daiichi Nuclear Power Plant, Scientific Reports*, 10.1038/s41598-017-05910-z, 7 (2017) 5409, 2017.07.
4.	J. Imoto, G. Furuki, A. Ochiai, S. Yamasaki, K. Nanba, T. Ohnuki, B. Grambow, R. C. Ewing, & S. Utsunomiya, Caesium fallout in Tokyo on 15th March, 2011 is dominated by highly radioactive, caesium-rich microparticles, Scientific Reports, 10.1038/srep42118, 7, (2017) 42118 In press.
5.	S.Masaki, H.Shiotsu, F.Sakamoto, T.Ohnuki, S.Utsunomiya, Effects of CeO2 nanoparticles on microbial metabolism, Chemical Geology, 391, (2015)33-41.
6.	M.Jiang, Y.Nakamatsu, K.A. Jensen, S.Utsunomiya, Multi-scale analysis of the occurrence of Pb, Cr and Mn in the NIST standards: Urban dust (SRM1649a) and indoor dust (SRM2584), Atmospheric Environment , 82, (2014)364-374.
7.	E. Kamiishi and S. Utsunomiya, Nano-scale reaction processes at the interface between apatite and aqueous lead, Chemical Geology, 340, (2013)121-130.
8.	M. Jiang, T. Ohnuki, K. Tanaka, N. Kozai, E. Kamiishi, & S. Utsunomiya, Post-adsorption process of Yb phosphate nano-particle formationby Saccharomyces cerevisiae, GeochimicaetCosmochimicaActa, 93, (2012)30-46.
9.	M. Kogawa, E.B. Watson, R.C. Ewing, & S. Utsunomiya, Pb in zircon at the atomic-scale, American Mineralogist, 97, (2012)1094-1102.
10.	M. Jiang, T. Ohnuki, N. Kozai, K. Tanaka, Y. Suzuki, F. Sakamoto, E. Kamiishi, S. Utsunomiya,, Biological nano-mineralization of Ce phosphate by Saccharomyces cerevisiae, Chemical Geology, 277(2010)61-69.
11.	S. Utsunomiya, A. B. Kersting, R. C. Ewing, Groundwater Nanoparticles in the Far-Field at the　Nevada Test Site: Mechanism for Radionuclide Transport., Environmental Science & Technology, 43, (2009)1293-1298.
12.	S. Utsunomiya, R. C. Ewing, J. W. Valley, A. J. Cavosie, & S. A. Wilde, Radiation damage and alteration in zircon from Jack Hills granitoids, western Australia,, Chemical Geology, 236, (2007)92-111.
13.	A. P. Novikov, S. N. Kalmykov, S. Utsunomiya, R. C. Ewing, F. Horreard, S. B. Clark, V. V. Tkachev, & B. F. Myasoedov, Colloid Transport of Plutonium in the Far-field of the Mayak Production Association, Russia, Science, 314, (2007)638-641.
14.	S. Utsunomiya, C. S. Palenik, J. W. Valley, A. Cavosie, S. A. Wilde & R. C. Ewing,, Nanoscale occurrence of Pb in an Archean zircon, Geochimica et Cosmochimica Acta, 68, (2004)4679-4686.
15.	S. Utsunomiya, K. A. Jensen, G. J. Keeler, & R. C. Ewing, Direct identification of trace metals in fine and ultra-fine particles in the Detroit urban atmosphere., Environmental Science & Technology, 38, (2004)2289-2297. Ranked 9th place of the most-accessed article in Environmental Science &Technology in 2004.
16.	S. Utsunomiya, S. C. Peters, J. D. Blum & R. C. Ewing, Nano-scale mineralogy of Arsenic phases by HAADF-STEM, American Mineralogist, 88, (2003)1844-1852.
17.	S. Utsunomiya & R. C. Ewing, Application of high-angle annular dark field scanning transmission electron microscopy (HAADF-STEM), STEM-energy dispersive X-ray spectrometry (EDX), and energy-filtered (EF)-TEM to the characterization of nanoparticles in the environment, Environmental Science & Technology,, 37, (2003)786-791.
18.	S. Utsunomiya, K. A. Jensen, G. J. Keeler, & R. C. Ewing, Uraninite and fullerene in atmospheric particulates, Environmental Science & Technology, 36, (2002)4943-4947.
19.	S. Utsunomiya, T. Murakami, M. Nakada, & T. Kasama, Iron oxidation state of a 2.45 b.y.-old paleosol developed on mafic volcanics, Geochimica et Cosmochimica Acta, 67, (2003)213-221. This paper was chosen for inclusion in electric-only virtual Journal of Geobiology (2003) vol.2 issue 2..

1.	Satoshi Utsunomiya, Challenging Radionuclides in Environment at the Atomic Scale: Issues in Waste Disposal and Fukushima, Goldschmidt Conference, 2016.06, [URL], Radionuclides are beneficial in many instances such as power generation, industrial, medical, and geochronological applications. Conversely, some fission products and actinides produced in nuclear reactors are radiotoxic and have long half-lives. These radionuclides need to be isolated and safely stored for geological periods; however, there have been instances where the release of these radionuclides has caused serious environmental issues. In such instances, the release of these radionuclides is governed by their interaction with inorganic, organic, and biological substances at the molecular scale in the Earth’s surface and sub-surface. Naturally-occurring nano-particles and microorganisms also play an important role in facilitating or retarding the migration of low-solubility radionuclides. The migration processes at the nano- and atomic-scales have been illustrated by atomic-resolution transmission electron microscopy (TEM). TEM is a powerful technique that enables us to investigate the structural and chemical properties of these particles at scales ranging from micron to sub-angstrom. This talk will address some of the observable microscopic phenomena that can impact the migration of radionuclides in surface and subsurface environments; physical and chemical alteration of nuclear waste and UO2+x, colloid-facilitated transport, microbial nanocrystallization of rare earth elements that are used as surrogate of trivalent actinides, the interaction between nanoparticles and microorganisms, and most recently contamination at Fukushima. At the present, 134Cs and 137Cs are important dose contributors, and their radioactivity will remain in soils, mainly fixed in the form of submicron-sized clay minerals. Some of the particles associated with Cs are transported while surface soils are run off. On the other hand, at the initial stage of Cs release from Fukushima Daiichi Nuclear Power Plant, low-solubility Cs-rich micro-particles, which contain up to ~36 wt% of Cs as Cs2O, are responsible for ~90% of the radioactivity (rather than soluble forms of Cs such as CsOH). The interior of these particles exhibit evidence of various nanoscale processes in the molten core-concrete interaction (MCCI) that occurred subsequent to melt down in the primary containment vessel. Still, these particles play an important role in the dispersion of low-volatile radionuclides into the surrounding environment. The latter half of the talk will highlight various microscopic but critical phenomena in Fukushima as unveiled by state-of-the-art TEM investigations.
2.	Utsunomiya S, Shiotsu H, Jiang M, Ohnuki T, Nanoparticle formation of lanthanides on Saccharomyces cerevisiae, February 18-19, 2013, Japan-UK workshop, The Studio, Birmingham, UK., Japan-UK workshop, The Studio, 2013.02.
3.	Ohnuki T, Kozai N, Sakamoto F, Yamasaki S, Utsunomiya S, Nishiguchi N, Suzuki Y, Accumulation of lanthanides and actinides by microorganisms – present status, Japan-UK workshop, The Studio, 2013.02.
4.	Utsunomiya S, Cesium contamination in Fukushima soils and exploration of effective decontaminant, International workshop on post-Fukushima challenges in nuclear safety and environmental contamination, 2012.06.
5.	Shiotsu H, Jiang M, Nakamatsu Y, Ohnuki T, Utsunomiya S, Characteristic　of the long-term accumulation of lanthanides on Saccharomyces cerevisiae, Characteristic　of the long-term accumulation of lanthanides on Saccharomyces cerevisiae, 2012.06.
6.	Utsunomiya S, Microscopic View of Colloids Associated with Radionuclides in the Environments, Migration 2011, 13th International Conference on the Chemistry and Migration Behaviour of Actinides and Fission Products in the Geosphere, September 18 - 23, 2011, Beijing, China. Invited , 2011.09.
7.	Iwata H, Sakamaki K, Yasuda K, Ohnuki T, Utsunomiya S, Fate of Plutonium Derived From the Atomic Bomb Detonated at Nagasaki, Japan, Migration 2011, 13th International Conference on the Chemistry and Migration Behaviour of Actinides and Fission Products in the Geosphere, 2011.09.
8.	Iwata H, Sakamaki K, Yasuda K, Ohnuki T, Utsunomiya S, Fate of Plutonium Derived From the Atomic Bomb Detonated at Nagasaki, Japan, Migration 2011, 13th International Conference on the Chemistry and Migration Behaviour of Actinides and Fission Products in the Geosphere, 2011.09.
9.	Sakamaki K, Iwata H, Kamiishi E, Utsunomiya S, Alteration of Bentonite-Iron System under the Hyper Alkaline Condition , Migration 2011, 13th International Conference on the Chemistry and Migration Behaviour of Actinides and Fission Products in the Geosphere, 2011.09.
10.	Kamiishi E, Utsunomiya S, Mechanism of Selenite Sequestration by Low-Soluble Phosphate Minerals , Migration 2011, 13th International Conference on the Chemistry and Migration Behaviour of Actinides and Fission Products in the Geosphere , 2011.09.
11.	Sakamaki K, Iwata H, Kamiishi E, Utsunomiya S, Alteration of Bentonite-Iron System under the Hyper Alkaline Condition , Migration 2011, 13th International Conference on the Chemistry and Migration Behaviour of Actinides and Fission Products in the Geosphere, 2011.09.
12.	Kamiishi E, Utsunomiya S, Mechanism of Selenite Sequestration by Low-Soluble Phosphate Minerals , International Conference on the Chemistry and Migration Behaviour of Actinides and Fission Products in the Geosphere, 2011.09.
13.	Jiang M, Ohnuki T, Tanaka K, Kozai N, Kamiishi E, Utsunomiya S, Post-Adsorption Process of REE (Sm, Yb) Phosphate Nano-Mineralization by Microorganism, International Conference on the Chemistry and Migration Behaviour of Actinides and Fission Products in the Geosphere, 2011.09.
14.	Kaneko M, Nakamatsu Y, Xie Z., Utsunomiya S, Physical and Chemical State of Fe-phases in Chinese Dust Storm, Goldschmidt Conference, 2011.08.
15.	Nakamatsu Y, Kaneko M, Kogawa M, Utsunomiya S, Chemical state of Fe on fine and ultrafine particles in the urban atmosphere in Japan, Workshop Study on Radionuclides Migration for Environmental Safety Assessment, SSRF, 2011.09.
16.	Utsunomiya S, Importance of XAFS study in Environmental Chemistry, SSRF, 2011.09.
17.	Utsunomiya S, Nanoscale Occurrence of Radionuclides in the Environments Revealed by Scanning Transmission Electron Microscopy (STEM), The 2010 International Chemical Congress of Pacific Basin Societies, 2010.12.
18.	Nishita C, Kogawa M, S.Utsunomiya, Chemical State of Fe in Fine and Ultrafine Particles in the Urban Atmosphere, Goldschmidt conference, 2010.06.
19.	Jiang M, Ohnuki T, Kamiishi E, Tanaka K, Kozai N, Suzuki Y, S.Utsunomiya, Nanoscale Process in the Alteration of Bentonite-Iron System Under the Hyper Alkarine Conditions, Goldschmidt conference, 2010.06.
20.	Kogawa M, Watson B, Ewing R, Utsunomiya S, Pb-Incorporation into Synthetic Pb-Doped Ziricon, Goldschmidt conference, 2010.06.
21.	Kamisihi E, Utsunomiya S, Mechanism of Selenite Sequestration byLow-Soluble Phosphate Minerals, Goldschmidt conference, 2010.06.
22.	Jiang M, Ohnuki T, Kamiishi E, Tanaka K, Kozai N, Suzuki Y, Utsunomiya S, Biological Nano-Mineralization of Yb phosphate by Saccharomyces cerevisiae, Goldschmidt conference, 2010.06.