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NNOA Research Article Sep 2, 2020
Thermal Diffusivity Effect on Brownian Motion
Osuga T*

The reason why the measured self-diffusional coefficient, selfDmeas, of the liquid Brownian particle (LBP) tends to be greater than the analytically expected coefficient, selfDana…

Stokes Einstein equation Stokes Einstein Sutherland equation Dielectric relaxation
NNOA Research Article Jul 3, 2020
Molecular Sphere Radii of H2O and D2O to Achieve Rotational Brownian Motion
Osuga T*

The sphere radii H2Oaw and D2Oaw of H2O and D2O performing rotational Brownian motion (RBM) in the liquid state were calculated to be H2Oaw =1.44±0.01 Å at 0℃ and D2Oaw =1.45…

Stokes Radius Einstein–Smoluchowski Relation Stokes-Einstein-Sutherland Equation
NNOA Research Article May 25, 2018
Efficiencies of the Cryoprotectants N-Methylacetamide, N-Methylformamide and Dimethyl Sulfoxide, and the Cell Protectants Trehalose and Hydroxyethyl Starch in Cryopreservation of Swine Sperm
Osuga T1*, Hasegawa T2, Aoki M1, Fujie M3, Nakane T2 and Asai T4

Polar molecules protect against freeze-induced damage by interfering with the polarised water arrangement during ice nucleation inside cells. Insufficient protection from freeze-in…

Freeze-induced damage Cryopreservative-induced cytotoxicity Cell permeation
NNOA Research Article Mar 5, 2018
Methylation of the Cryopreservative N-Methylacetamide into N,N-Dimethylacetamide in the Living Body
Osuga T1*, Aoki T2, Tsuda T3, Sugiyama H4, Tamura Y5 and Asai T6

The polar molecule dimethyl sulfoxide (DMSO) protects against freeze-induced damage by interfering with the polarised water arrangement during ice nucleation inside both nucleated …

Freezing-Induced Damage Cryopreservative-Induced Cytotoxicity Hepatotoxicity
NNOA Research Article Jul 28, 2017
The Effects of Moderate-Intensity Inhomogeneous Static Magnetic Fields on Neuromuscular Transmission
Okano H, Osuga T*, Ansei Y, Hattori Y and Tatsuoka H

The present study focuses on the effects of moderate-intensity inhomogeneous static magnetic fields (SMF) up to 0.73 T on action potentials in Wistar rats. Thirty three animals wer…

Magnetic Force Electrical Nerve Stimulation Compound Nerve Action Potentials
NNOA Research Article Jul 26, 2017
Thermal Conduction in Higher-Dimensional Sphere and Application to Fluid Rotation
Osuga T*

When two parallel disks, a cylinder, and a sphere having a static fluid within start to rotate, the increase in the angular velocity of the laminar fluid layers starting coaxial ro…

Von Neumann Stability Analysis Lax&amp ndash
NNOA Research Article Jun 9, 2017
Transverse and Longitudinal Hydraulic Conductivities in Hollow Fiber Dialyzer Evaluated Using Capillary Flow Analysis
<p>Osuga T<sup>1</sup>*, Ikehira H<sup>2</sup> and Weerakoon B<sup>3</sup></p>

A cylindrical blood dialyzer houses a hollow fiber bundle, where the dialysate inlet and outlet are located at both surface ends. The transverse and longitudinal dialysate flow pat…

<p>Poiseuille Flow Permeable Flow Darcy&rsquo
NNOA Research Article Apr 28, 2017
Diffusion Coefficient Measurements of T1-Enhanced Contrast Agents in Water Using 0.3 T Spin Echo Proton MRI
<p>Osuga T<sup>1*</sup>, Ikehira H<sup>2</sup> and Weerakoon B<sup>3</sup></p>

The diffusion coefficients of four contrast agents (CAs, compounds of paramagnetic ions), Gd-DTPA, Gd-HP-DO3A, MnCâ„“2, and albumin-(Gd-DTPA), in water were measured using 0.3 T pr…

<p>Relaxivity Diffusion-Weighted MRI Blood-pool Contrast Agent
NNOA Research Article Apr 18, 2017
N-Methylacetamide for Cryopreservation - An Alternative to Dimethyl Sulfoxide
Osuga T1*, Shimizu N2, Takanashi M3, Tamura Y4, Makino S5 and Asai T6*

Cell death due to cryopreservation is caused by insufficient protection from freezing-induced damage and cytotoxicity of the cryopreservation agent, acting both before freezing and…

Hematopoietic Stem Cell Cryoprotectant Freezing-Induced Damage
NNOA Research Article Mar 1, 2017
Micro-Modulations of Titanium Oxide Coatings Formed Using a Femtosecond Laser
Osuga T1* and Ichikawa Y2

Highly useful microstructures are required in order to enhance the properties of titanium oxide (TiO2) coatings, so as to substantially increase the surface and underlayer surface …

Laser ablation Microsphere Mesopore