Kazuharu Koide

Drug Delivery System Using Nano-Magnetic Fluid

Nano-size magnetic magnetide is considered important for various medical applications. Dynamic motion of the magnetic particle is investigated in two essential models from a theoretical point of view. One is a drag model of the magnetic particle in an artery. The second is a pull model towards the surface of artery. Threshold conditions of external variables are obtained by dimensional analysis. On the basis of all these results, it is concluded that the movement of magnetic fluids can be controlled by external magnetic fields in blood vessels.

Fabrication of Magnetite Nanoparticals and Drug Delivery Observation of Hydrophobe Ferrofluid by SPring-8 Synchrotron Radiation

Magnetic nanoparticles are widely used in magnetic fluid, magnetic grinding materials, magnetic controllers, magnetic sensors, biomedicine fields and so on. Recently, more and more attentions were focused upon DDS (Drug Delivery System). In this study, Magnetite nanoparticles about 8nm size were synthesized by liquid phase precipitation method. Then the nanoparticles coated with surfactant were dispersed throughout kerosene and inject the solutions into biomaterials. Using strong photon beams in SPring-8 facility, we observed the distribution state and the effect of magnetic field on the behaviour of nanoparticles in biomaterials.

Evaluation of dermal segment on viscoelasticity measurement of skin by rheometer

The engineering of human tissue represents a major technique in clinical medicine. Material evaluation of skin is important as preventive medicine. Decubitus originates in pressure and the rub. However, shearing in the skin has exerted the influences on the sore pressures most. This paper examines one demand of crucial importance, namely the real time in vivo monitoring of the shearing characteristics skin tissue. Rheometer is a technology developed to measure viscoelasticity of solid and liquid. To measure viscoelasticity of the skin in the noninvasive with this device, we remodeled it. It is ideal for the continuous monitoring of tissues in vivo.

Simulations on The Population and Disease in Japan

Future Japanese population pyramid and death toll are similarity. According to the national census performed in last October, Japan entered population decline society. A trend of population of man and woman is shown until 2060. A calculation results are shown every five years. The population is classified in an age-grade every 5 years old. The population of 5 years old rank is divided into man and woman, and resulting figures are shown. Aging rate is obtained based on the constitution of population. We can predict a death toll of the modern Japanese three major causes of deaths (malignant neoplasms, heart diseases, cerebro-vascular diseases) by using the death rate for three diseases for every age-grade

Compressional Properties of Nuclear Matter in the Relativistic Mean Field Theory with the Excluded Volume Effects

Compressional properties of nuclear matter are studied by using the mean field theory with the excluded volume effects of the nucleons. It is found that the excluded volume effects make it possible to fit the empirical data of the Coulomb coefficient

Population Dynamics in Population Decline Society

K_{c}

Numerical Analysis of Blood Flow in Vessels

of nucleus incompressibility, even if the volume coefficient

Meson-Nucleon Vertex Corrections in the Cutoff Field Theory and Tensor Coupling

K

Vacuum Effects and Compressional Properties of Nuclear Matter in Cutoff Field Theory

is small(

Nucleon Mean Free Path in Nuclear Matter Based on Nuclear Schwinger-Dyson Formalism

\sim 150