Osaka University

Other

Sharp Kabushiki Kaisha Corporation

Shimadzu Corporation

Aimedic Mmt Co., Ltd.

Satoshi Hamaguchi

Katsuhisa Kitano

Kei Shinada

Hideki Yoshikawa

Satoshi Ikawa

Satoshi Sugimoto

Tomoko Deguchi

Hironori Aoki

Chieko Asamori

Takashi Kaito

To provide an artificial bone having a porous structure with an improved affinity to osteogenic cells, an artificial bone () includes: a base material () containing porous ceramics provided with mutually interconnected multiple pores (); a carbonaceous thin film () formed on an outer surface of the base material and wall surfaces () of the pores; and functional groups () including amino groups () provided on a surface and in an interior of the carbonaceous thin film.

Artificial bone and manufacturing method of artificial bone

A heat exchanger () is provided with header pipes (), a plurality of flat tubes () disposed between the header pipes, and corrugated fins () disposed between the flat tubes (). The end of the corrugated fin at the surface on the side, on which condensed water gathers, of the heat exchanger protrudes from an end of the flat tube (), and a linear water-conducting member () is inserted between a gap (G) formed between the protruding portions of the corrugated fins. The interval between the water-conducting member and the protruding end of the corrugated fin located thereon is a distance at which the surface tension of water can act therebetween. A V-shaped cut (or) is formed at the edge of the protruding end of the corrugated fin.

Heat exchanger and air conditioner equipped therewith with water guiding condensate notches and a linear member

An object of the present invention is to efficiently sterilize microorganisms present in or on a surface of a liquid. Plasma is generated in a vicinity of or in a manner to make contact with a liquid whose pH value is adjusted to become 4.8 or lower, more preferably 4.5 or lower. The plasma is generated in an atmospheric gas containing nitrogen, e.g., in the air. Superoxide anion radicals (O.) that are generated by the plasma react with protons (H) in the liquid to form hydroperoxy radicals (HOO.). Further, nitrogen and oxygen included in the air are combined together by the action of plasma to form nitrogen oxide such as nitric oxide (NO.). The nitric oxide (NO.) combines with the hydroperoxy radicals (HOO.) to become peroxynitrite (ONOOH(ONOO)) having a high microbiocidal activity.

Sterilization method and apparatus

A low-frequency high AC voltage from an excitation voltage power source () is applied between one electrode () and two other electrodes (A andB) to generate a low-frequency AC-excited dielectric barrier discharge within a gas passage (), thereby creating atmospheric pressure non-equilibrium micro-plasma. A sample gas is mixed with hydrogen inside the passage of a nozzle (), and further mixed with air outside an exit port () to burn, forming a hydrogen flame (). Then, the sample gas reaches an ionization area (), where the sample components are ionized due to the effect of light emitted from the plasma. Meanwhile, water molecules generated in the hydrogen flame () are supplied into the ionization area (), whereby some of the sample-molecule ions are hydrated while the others undergo a reaction to form a hydroxonium ion. These kinds of hydrated ions have long lifetimes and barely become extinct halfway, so that they can efficiently reach a detection electrode () and be detected as ion current. As a result, the detection sensitivity is improved and the dynamic range is enhanced.

Discharge ionization current detector

For production of plasma from a medium gas mass in an elongated shape, electric field forming elementsthat form an electric field in the medium gas mass are provided. The electric field forming elements form an electric field so that partial discharge occurs from the electric field forming elements toward both sides in the longitudinal direction of the medium gas mass. Accordingly, plasmais produced from the medium gas mass. The medium gas mass is formed by, for example, gas supply membersthat guide medium gas, through an internal hollow, to the electric field forming elements. An electric field forming area includes, for example, at least one high-potential electrodeand a voltage applying unitthat applies a voltage to the high-potential electrode. Plasma limited in medium gas can be produced with high energy efficiency stably over a wide range of parameters through a simple configuration.

Plasma producing apparatus and method of plasma production

Growing community of inventors

Osaka, Japan

Satoshi Hamaguchi