Orientational Dynamics of Magnetic Iron Oxide Nanoparticles in a Hydrogel: Observation by Magnetic Linear Dichroism under Oscillating Field

Masayori Suwa, Akira Uotani, Yuki Tojo, Reisho Onodera, Satoshi Tsukahara

Langmuir　Vol. 38　No. 31　p. 9708-9719　2022/07/26　Research paper (scientific journal)

In Situ Fluorescence Microscope Measurements of the Phase Transfer Dynamics of Single DNA Molecular Ions with Dimethyldioctadecylammonium Chloride into Isooctane–1-Octanol Mixture

Satoshi TSUKAHARA, Shohei INOSHITA, Terufumi FUJIWARA

Solvent Extraction Research and Development, Japan　Vol. 28　No. 1　p. 1-10　2021　Research paper (scientific journal)

Influence of Viscosity on Linear Dichroism Change in Magnetic Nanoparticles Under Damped Oscillating Magnetic Field

Masayori SUWA, Akira UOTANI, Satoshi TSUKAHARA

BUNSEKI KAGAKU　Vol. 69　No. 12　p. 679-684　2020/12/05　Research paper (scientific journal)

Magnetic and viscous modes for physical rotation of magnetic nanoparticles in liquid under oscillating magnetic field

Masayori Suwa, Akira Uotani, Satoshi Tsukahara

Applied Physics Letters　Vol. In press　2020/06　Research paper (scientific journal)

Alignment and small oscillation of superparamagnetic iron oxide nanoparticle in liquid under alternating magnetic field

Masayori Suwa, Akira Uotani, Satoshi Tsukahara

Journal of Applied Physics　2019/03　Research paper (scientific journal)

Anchoring Energy Measurements at the Aqueous Phase/Liquid Crystal Interface with Cationic Surfactants Using Magnetic Freedericksz Transition

Fatma Yesil, Masayori Suwa, Satoshi Tsukahara

Langmuir　Vol. 34　p. 81-87　2018/12　Research paper (scientific journal)

In Situ Microscope Measurements and Analysis of the Passing of Individual Paramagnetic Particles through the Interfaces of Aqueous Two-Phase Systems by Magnetic Force

Kazuya KATAYAMA, Satoshi TSUKAHARA

Solvent Extraction Research and Development, Japan　Vol. 25　No. 2　p. 91-99　2018　Research paper (scientific journal)

Microscope Measurements of the Passing of Individual Paramagnetic Particles through Interface of Aqueous Two-phase System by Magnetic Force

Kazuya Katayama, Satoshi Tsukahara

CHEMISTRY LETTERS　Vol. 46　No. 7　p. 930-932　2017/07　Research paper (scientific journal)

Magnetic Orientation of 4-cyano-4 '-pentylbiphenyl Liquid Crystal at Its Interface with Aqueous Solution

Masayori Suwa, Fatma Yesil, Yukari Nakatsuka, Akihide Arima, Satoshi Tsukahara

BUNSEKI KAGAKU　Vol. 65　No. 4　p. 203-209　2016/04　Research paper (scientific journal)

Microspectroscopic Investigations of Phase Transition Behaviors of Phospholipid Monolayer and Reduction Reactions of Tetrachloroaurate(III) Occurring at Liquid/Liquid Interfaces

Satoshi TSUKAHARA

Bunseki kagaku　Vol. 65　No. 3　p. 113-118　2016　Research paper (scientific journal)

Faraday Rotation Imaging Microscope with Microsecond Pulse Magnet

Masayori Suwa, Satoshi Tsukahara, Hitoshi Watarai

Journal of Magnetism and Magnetic Materials　Vol. 393　p. 562-568　2015/06　Research paper (scientific journal)

Zero-velocity Magnetophoretic Method for the Determination of Particle Magnetic Susceptibility

Hitoshi Watarai, Hoang Trong Tien Duc, Tran Thi Ngoc Lan, Tianyi Zhang, Satoshi Tsukahara

ANALYTICAL SCIENCES　Vol. 30　No. 7　p. 745-749　2014/07　Research paper (scientific journal)

In Situ Microscope Measurements of the Formation of Nanometer-Sized Gold Particles at the Dodecane/Water Interface through the Direct Reduction of Aqueous Tetrachloroaurate(III) by Hydrophobic dl-alpha-Tocopherol in the Presence of 1,10-Phenanthroline

Satoshi Tsukahara, Rintaro Kobayashi, Terufumi Fujiwara

SOLVENT EXTRACTION RESEARCH AND DEVELOPMENT-JAPAN　Vol. 21　p. 119-127　2014　Research paper (scientific journal)

Faraday Rotation Dispersion Microscopy Imaging of Diamagnetic and Chiral Liquids with Pulsed Magnetic Field

Vol. 85　No. 10　p. 5176-5183　2013/05　Research paper (scientific journal)

Surface tension determination through measurements of resonance oscillation of a small surface using dielectric force by a localized alternating current electric field

Satoshi Tsukahara, Tsuyoshi Tsuruta, Terufumi Fujiwara

Analyst　Vol. 138　No. 7　p. 2110-2117　2013/04/07　Research paper (scientific journal)

Microscope Measurements of Lateral Diffusion of Fluorescent Rhodamine B at Toluene/Water Interface by Total Internal Reflection-Fluorescence Recovery after Photobleaching

Naoki Shinomori, Satoshi Tsukahara

CHEMISTRY LETTERS　Vol. 42　No. 4　p. 444-446　2013/04　Research paper (scientific journal)

A Spectroscopic and Microscopic Study on the Extraction Behavior of a Probe Dye, Neutral Red, by Aerosol OT in the Isooctane/Water System

Yuya Toyokawa, Satoshi Tsukahara, Terufumi Fujiwara

SOLVENT EXTRACTION RESEARCH AND DEVELOPMENT-JAPAN　Vol. 20　p. 29-38　2013　Research paper (scientific journal)

Single-Molecule Lactonization of Octadecylrhodamine B at a Liquid-Liquid Interface

Tomoko Matsui, Satoshi Tsukahara, Hitoshi Watarai

LANGMUIR　Vol. 28　No. 44　p. 15428-15432　2012/11　Research paper (scientific journal)

Chirality induction and amplification in methylene blue H-aggregates via D- and L-phenylalanine pre-adsorbed on the tungsten oxide nanocolloid surface

Kenta Adachi, Shohei Tanaka, Suzuko Yamazaki, Hideaki Takechi, Satoshi Tsukahara, Hitoshi Watarai

NEW JOURNAL OF CHEMISTRY　Vol. 36　No. 11　p. 2167-2170　2012/11　Research paper (scientific journal)

Microscope measurements for the transient formation of W/O emulsions of sodium bis(2-ethylhexyl) sulfosuccinate in the dodecane/water interfacial region

Satoshi Tsukahara, Yuichi Shishino, Terufumi Fujiwara

Langmuir　Vol. 27　No. 12　p. 7392-7399　2011/06/21　Research paper (scientific journal)

Chemiluminescence from an Oxidation Reaction of Rhodamine B with Cerium(IV) in a Reversed Micellar Medium of Cetyltrimethylammonium Chloride in 1-Hexanol-Cyclohexane/Water

Tamer H. A. Hasanin, Yusuke Tsunemine, Satoshi Tsukahara, Yasuaki Okamoto, Terufumi Fujiwara

ANALYTICAL SCIENCES　Vol. 27　No. 3　p. 297-304　2011/03　Research paper (scientific journal)

In Situ Fluorescence Microscopic Measurements of the Phase Transition Behavior of Dipalmitoyl Phosphatidylcholine Monolayers Prepared at Hydrocarbon/Water Interfaces

Satoshi Tsukahara, Kazuaki Mukai, Shota Watanabe, Terufumi Fujiwara

SOLVENT EXTRACTION RESEARCH AND DEVELOPMENT-JAPAN　Vol. 18　p. 149-158　2011　Research paper (scientific journal)

Acid-Base Behavior of Rhodamine B in a Reversed Micellar Medium of Cetyltrimethylammonium Chloride in 1-Hexanol-Cyclohexane/Water

Tamer H. A. Hasanin, Satoshi Tsukahara, Terufumi Fujiwara

ANALYTICAL SCIENCES　Vol. 26　No. 12　p. 1247-1254　2010/12　Research paper (scientific journal)

Direct determination of bromine in plastics by electrothermal vaporization/inductively coupled plasma mass spectrometry using a tungsten boat furnace vaporizer and an exchangeable sample cuvette system

Yasuaki Okamoto, Hiromi Komori, Hiroko Kataoka, Satoshi Tsukahara, Terufumi Fujiwara

RAPID COMMUNICATIONS IN MASS SPECTROMETRY　Vol. 24　No. 9　p. 1265-1270　2010/05　Research paper (scientific journal)

Microscopic Imaging of Fluorescence Anisotropy of Rhodamine B at the Free and Surfactant-Modified Toluene/Water Interfaces Excited under Total Internal Reflection Conditions

Satoshi Tsukahara, Mami Yamasaki, Terufumi Fujiwara

SOLVENT EXTRACTION RESEARCH AND DEVELOPMENT-JAPAN　Vol. 17　p. 163-174　2010　Research paper (scientific journal)

Spectroscopic investigations on liquid-liquid interfaces

Satoshi Tsukahara

Analytical and Bioanalytical Chemistry　Vol. 395　No. 4　2009/10　Research paper (scientific journal)

In situ measurements of emission transition dipole moment of individual ordered microdomain of diprotonated tetraphenylporphine aggregate formed at dodecane/aqueous H2SO4 interface

Satoshi Tsukahara, Yukio Kamiya, Terufumi Fujiwara

Analytical and Bioanalytical Chemistry　Vol. 395　No. 4　p. 1047-1053　2009/10　Research paper (scientific journal)

Trace Analysis of Cobalt and Manganese in Organic Solvents by Flow-Injection Chemiluminescence Method Utilizing Reverse Micelle

Hideyuki Takahashi, Yasuaki Urabe, Yasuaki Okamoto, Satoshi Tsukahara, Terufumi Fujiwara

BUNSEKI KAGAKU　Vol. 58　No. 6　p. 523-529　2009/06　Research paper (scientific journal)

In Situ Fluorescence Microscopic Investigation into the Dependence of Conformation and Electrophoretic Velocity of Single DNA Molecules on Acid or Spermidine Concentration

Shohei Inoshita, Satoshi Tsukahara, Terufumi Fujiwara

ANALYTICAL SCIENCES　Vol. 25　No. 2　p. 293-299　2009/02　Research paper (scientific journal)

Adsorption Behavior of the Cetyltrimethylammonium Chloride Reverse Micelles on Porous Silica Gels

Kouta Nakada, Imdad U. Mohammadzai, Satoshi Tsukahara, Terufumi Fujiwara

ANALYTICAL SCIENCES　Vol. 25　No. 2　p. 201-206　2009/02　Research paper (scientific journal)

Formation of gold microparticles by reduction with dl/-α-tocopherol at liquid/liquid interfaces

Satoshi Tsukahara, Rintaro Kobayashi, Teruflimi Fujiwara

Solvent Extraction Research and Development　Vol. 16　p. 37-45　2009　Research paper (scientific journal)

Separate vaporisation of boric acid and inorganic boron from tungsten sample cuvette-tungsten boat furnace followed by the detection of boron species by inductively coupled plasma mass spectrometry and atomic emission spectrometry (ICP-MS and ICP-AES)

Hiroko Kataoka, Yasuaki Okamoto, Satoshi Tsukahara, Terufumi Fujiwara, Kazuaki Ito

ANALYTICA CHIMICA ACTA　Vol. 610　No. 2　p. 179-185　2008/03　Research paper (scientific journal)

In situ measurements of the dynamics of single giant DNA molecules at the toluene-trioctylamine/water interface by total internal reflection fluorescence microscopy

Satoshi Tsukahara, Michinori Suehara, Terufumi Fujiwara

LANGMUIR　Vol. 24　No. 5　p. 1673-1677　2008/03　Research paper (scientific journal)

Magnetic drop-in tungsten boat furnace vaporisation inductively coupled plasma atomic emission spectrometry (MDI-TBF-ICP-AES) for the direct solid sampling of iron and steel

Hiroko Kataoka, Yasuaki Okamoto, Takaya Matsushita, Satoshi Tsukahara, Terufumi Fujiwara, Kazuaki Wagatsuma

JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY　Vol. 23　No. 8　p. 1108-1111　2008　Research paper (scientific journal)

Microscopic measurements of deformation of liquid surfaces induced by localized direct current electric field

Tsuyoshi Tsuruta, Satoshi Tsukahara, Terufumi Fujiwara

ANALYTICAL SCIENCES　Vol. 24　No. 1　p. 121-126　2008/01　Research paper (scientific journal)

High magnification microscopic system focusing on transparent liquid/liquid interface formed in thin-layer two-phase microcell

Satoshi Tsukahara, Michinori Suehara, Terufumi Fujiwara

ANALYTICAL SCIENCES　Vol. 23　No. 3　p. 375-378　2007/03　Research paper (scientific journal)

Ordered microdomain of diprotonated tetraphenylporphine aggregate formed at dodecane/aqueous H2SO4 interface measured by microspectrophotometry

Yukio Kamiya, Satoshi Tsukahara, Terufumi Fujiwara

CHEMISTRY LETTERS　Vol. 36　No. 2　p. 344-345　2007/02　Research paper (scientific journal)

In situ measurement of individual W/O microemulsions of aerosol OT in dodecane/water extraction system by total internal reflection laser light scattering microscopy

Satoshi Tsukahara, Haruyasu Kitaguchi, Hitoshi Watarai

CHEMISTRY LETTERS　Vol. 36　No. 1　p. 148-149　2007/01　Research paper (scientific journal)

Direct determination of zinc in steel samples by electrothermal vaporization inductively coupled plasma atomic emission spectrometry

Yasuaki Okamoto, Takaya Matsushita, Hiroko Kataoka, Satoshi Tsukahara, Terufumi Fujiwara

Applied Spectroscopy　Vol. 60　No. 3　p. 339-342　2006/03　Research paper (scientific journal)

Lactone cleavage reaction kinetics of rhodamine dye at liquid/liquid interfaces studied by micro-two-phase sheath flow two-photon excitation fluorescence microscopy

T Tokimoto, S Tsukahara, H Watarai

LANGMUIR　Vol. 21　No. 4　p. 1299-1304　2005/02　Research paper (scientific journal)

In Situ Fluorescence Microscopic Measurements of Complexation Reactions at Liquid/Liquid Interface

TSUKAHARA Satoshi

International Journal of the Society of Materials Engineering for Resources　Vol. 13　No. 1　p. 1-8　2005

Microscopic Dielectrophoresis of Single DNA in the Presence of Some Substances in Aqueous Solutions(<Special Articles>Trends in Nano Science and Technology for Analytical Chemistry)

NISHIKAWA Ayaka, TSUKAHARA Satoshi, FUJIWARA Terufumi

BUNSEKI KAGAKU　Vol. 54　No. 6　p. 459-465　2005

Fabrication of planar multipole microelectrodes for dielectrophoresis by laser ablation

Ikeda, I, S Tsukahara, H Monjushiro, H Watarai

BUNSEKI KAGAKU　Vol. 51　No. 9　p. 767-772　2002/09　Research paper (scientific journal)

Flow fractionation of microparticles under a dielectrophoretic field in a quadrupole electrode capillary

S Tsukahara, K Yamanaka, H Watarai

ANALYTICAL CHEMISTRY　Vol. 73　No. 23　p. 5661-5668　2001/12　Research paper (scientific journal)

In situ fluorescence imaging and time-resolved total internal reflection fluorometry of palladium(II)-tetrapyridylporphine complex assembled at the toluene-water interface

N Fujiwara, S Tsukahara, H Watarai

LANGMUIR　Vol. 17　No. 17　p. 5337-5342　2001/08　Research paper (scientific journal)

Effect of surfactants on in-plane and out-of-plane rotational dynamics of octadecylrhodamine B at toluene-water interface

S Tsukahara, Y Yamada, H Watarai

LANGMUIR　Vol. 16　No. 17　p. 6787-6794　2000/08　Research paper (scientific journal)

Positive dielectrophoretic mobilities of single microparticles enhanced by the dynamic diffusion cloud of ions

S Tsukahara, T Sakamoto, H Watarai

LANGMUIR　Vol. 16　No. 8　p. 3866-3872　2000/04　Research paper (scientific journal)

Ligand dissociation in the excited state of 2-thenoyltrifluoroacetonato-europium(III) ion in aqueous solution

S Tsukahara, M Fujiwara, H Watarai

CHEMISTRY LETTERS　No. 4　p. 412-413　2000/04　Research paper (scientific journal)

Isomer recognizing adsorption of palladium(II)-2-(5-bromo-2-pyridylazo)-5-diethylaminophenol with diazine derivatives at the toluene-water interface

A Ohashi, S Tsukahara, H Watarai

ANALYTICA CHIMICA ACTA　Vol. 394　No. 1　p. 23-31　1999/07　Research paper (scientific journal)

Time-resolved total internal reflection fluorometry of ternary europium(III) complexes formed at the liquid/liquid interface

M Fujiwara, S Tsukahara, H Watarai

PHYSICAL CHEMISTRY CHEMICAL PHYSICS　Vol. 1　No. 12　p. 2949-2951　1999/06　Research paper (scientific journal)

Transient attenuated total internal reflection spectroscopy to measure the relaxation kinetics of triplet state of tetra(N-methylpyridinium-4-yl)porphine at liquid-liquid interface

S Tsukahara, H Watarai

CHEMISTRY LETTERS　No. 1　p. 89-90　1999　Research paper (scientific journal)

Oxygen-quenching process of the triplet state of diprotonated tetraphenylporphine at a liquid-liquid interface

S Tsukahara, H Watarai

LANGMUIR　Vol. 14　No. 24　p. 7072-7075　1998/11　Research paper (scientific journal)

Acid-catalyzed interfacial complexation in the extraction kinetics of palladium(II) with 2-(5-bromo-2-pyridylazo)-5-diethylaminophenol

A Ohashi, S Tsukahara, H Watarai

ANALYTICA CHIMICA ACTA　Vol. 364　No. 1-3　p. 53-62　1998/05　Research paper (scientific journal)

Dielectrophoretic separation of single microparticles with quadrupole microelectrode

Hitoshi Watarai, Takashi Sakamoto, Satoshi Tsukahara

Chemistry Letters　No. 3　p. 279-280　1998　Research paper (scientific journal)

Measurement of the rotational relaxation of octadecylrhodamine B adsorbed at a liquid-liquid interface by time-resolved fluorescence anisotropy under the total internal-reflection condition

Satoshi Tsukahara, Yoshiaki Yamada, Teruo Hinoue, Hitoshi Watarai

Bunseki Kagaku　Vol. 47　No. 12　p. 945-952　1998　Research paper (scientific journal)

Adsorption Kinetics of 5-Octyloxymethyl-8-Quinolinol at the Liquid-Liquid Interface

SHIOYA Takeshi, TSUKAHARA Satoshi, TERAMAE Norio

Chemistry Letters　Vol. 1997　No. 8　p. 695-696　1997/08

In situ measurement of dielectrophoretic mobility of single polystyrene microparticles

H Watarai, T Sakamoto, S Tsukahara

LANGMUIR　Vol. 13　No. 8　p. 2417-2420　1997/04　Research paper (scientific journal)

Complexation Kinetics of 5-Octyloxymethyl-8-quinolinol with Ni(II)at the Heptane-Water Interface

SHIOYA Takeshi, TSUKAHARA Satoshi, TERAMAE Norio

Chemistry Letters　Vol. 1996　No. 6　p. 469-470　1996/06

Synergistic Extraction of Rare Earths(III) with .BETA.-Diketone and Nitrogen-Containing Terdentate Ligand, 2,2':6',2''-Terpyridine.

Satake Saeko, Tsukahara Satoshi, Suzuki Nobuo

Bull. Chem. Soc. Jpn.　Vol. 68　No. 7　p. 1929-1933　1995

Preparation of Iron(II) by Electrolytic Reduction and Extraction with 4,4,4-Trifluoro-l-(2-thienyl)-l,3-butanedione into Various Organic Solvents

Satoshi Tsukahara, Kensaku Zaitsu, Nobuo Suzuki

Analytical Sciences　Vol. 11　No. 1　p. 45-50　1995　Research paper (scientific journal)

Pentane-Methanol Mixture as a Model of the Stationary Phase in Reversed-Phase Liquid Chromatography Using Octadecyl-Bonded Silica Gel and Methanol.

TSUKAHARA Satoshi, SAITOH Koichi, SUZUKI Nobuo

Analytical Sciences　Vol. 10　No. 4　p. 561-565　1994

Comparison of the Chromatographic Retention in Octadecyl—Bonded Silica/(Methanol-Water) System with Partition Coefficient in Dodecane/(Methanol-Water) System

Satoshi Tsukahara, Koichi Saitoh, Nobuo Suzuki

analytical sciences　Vol. 9　No. 1　p. 71-76　1993/02/01　Research paper (scientific journal)

Liquid-Liquid Partition Coefficients of Tris(β-diketonato)chromium(III) and Bis(β-diketonato)palladium(II) in the Dodecane/ (Acetonitrile-Water) System

Satoshi Tsukahara, Koichi Saitoh, Nobuo Suzuki

analytical sciences　Vol. 9　No. 1　p. 65-70　1993　Research paper (scientific journal)

Utility of High Performance Liquid Chromatography for Determination of Liquid-Liquid Partition Coefficients of Metal β-Diketonate Chelates

Koichi Saitoh, Satoshi Tsukahara, Nobuo Suzuki

Analytical Sciences　Vol. 3　No. 4　p. 309-312　1987　Research paper (scientific journal)