Japan Science and Technology Agency

Yoko Yamanishi

Fumihito Arai

Hiroki Kuriki

Shinya Sakuma

Kazuki Takahashi

Takuya Kambayashi

Yohei Hamano

Shun Omi

Provided are a device whereby, during process of a process target such as a cell or the like, localized process of a process part is possible without inflicting damage due to heat, and rejoining and regeneration may proceed readily subsequent to process, and whereby an injection substance may be introduced efficiently; and a device for generating bubbles containing a plasma. Through the use of a localized ablation device employing a bubble jetting member having a core formed from a conductive material, a shell part formed from an insulating material, covering the core and including a section extending from the tip of the core, and a space formed between the extended section of the shell part and the tip of the core, a process target can be treated in localized fashion and without inflicting damage. By further providing an outside shell part at the outer periphery of the shell part, bubbles onto which a solution containing an injection substance has been adsorbed can be ejected, and the injection substance can be introduced during localized ablation of the process target. Additionally, by including a pair of electrodes formed from a conducting material, for generating a plasma in an inert gas, a liquid flow passage through which a liquid flows, and a microscopic flow passage for flow of an inert gas, an inert gas containing a plasma, and bubbles of inert gas containing a plasma, the liquid flow passage and the microscopic flow passage connecting at the downstream side from a section in which plasma is generated in the microscopic flow passage, bubbles containing a plasma can be generated, and can maintain a plasma state even in liquid, whereby therapy of biological tissue can be effected with the plasma.

Bubble jetting member and method for producing same, gas/liquid jetting member and method for producing same, localized ablation device and localized ablation method, injection device and injection method, plasma-bubble jetting member, and therapeutic device and therapeutic method

The present invention enables fabrication and mass production of a bubble-jetting chip that includes a desired number of bubble jetting portions of the same size having bubble-jetting outlets of the same size. Mass production is enabled by fabricating a bubble-jetting chip comprising a substrate and a bubble-jetting portion formed on the substrate, the bubble-jetting portion comprising: an electrode that is formed of a conductive material; an insulating portion that is formed of an insulating photosensitive resin, is provided so as to sandwich the electrode, and includes an extended section that extends beyond the tip of the electrode; and a space that is formed between the extended section of the insulating portion and the tip of the electrode.

Bubble-jetting chip, localized ablation device and localized ablation method, and injection device and injection method

Provided are a protein crystal device and method for crystallizing protein capable of generating protein crystal without imparting a heat effect, a protein crystal-cutting device and method for cutting protein crystal capable of cutting protein crystal without imparting a heat effect on protein crystal, and bubble-jetting member and protein-adsorbing-bubble-jetting member used in said device. A bubble-jetting member is used in a protein crystal device to jet bubbles into a protein solution to thereby allow protein crystals to be obtained, the bubble-jetting member comprising: a core formed of a conductive material; a shell part formed of an insulating material, including an extended section extending from the tip of the core, and in which at least a portion closely adheres to the core to cover the core; and a gap having a bubble-jetting port, the gap being formed between the extended section and the tip of the core.

Method for crystallizing protein

Provided is a bubble-jetting member, the tip section of which is not damaged even when high voltage is applied thereto. There can be provided a bubble jetting member comprising: a core that is formed of a conductive material; a shell part that is formed of an insulating material, includes an extended section that extends beyond the tip of the core, and is closely adhered at least partially to the core and covers the core; and a space that is formed between the extended section and the tip of the core and has a bubble-jetting port, wherein there is formed on the tip of the extended section a thick portion that is thicker than the rest of the extended section whereby the tip section is not damaged.

Growing community of inventors

Tokyo, Japan

Yoko Yamanishi