Development of devices inducing biomedical tissues using the magnetic circuit depicted by a laser beam

2015 Fiscal Year Final Research Report

• Project/Area Number: 25670830
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Dental engineering/Regenerative dentistry
• Research Institution: Tohoku University
• Principal Investigator: Takada Yukyo 東北大学, 歯学研究科(研究院), 准教授 (10206766)
• Co-Investigator(Kenkyū-buntansha): SHIMIZU YOSHINAKA 東北大学, 大学院歯学研究科, 助教 (30302152) ; TAKAHASHI MASATOSHI 東北大学, 大学院歯学研究科, 助教 (50400255)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: レーザー / 磁気回路 / 窒素固溶 / オーステナイト / フェライト / 脱窒素 / 描画 / 血管

Outline of Final Research Achievements

We examined to draw a magnetic circuit on the substrate composed of a solid solution (gamma phase) by a laser beam. The paramagnetic solid solution was made by heating SUS XM27 ferritic stainless in nitrogen gas of 1 atm at 1200oC. Since the local heating by the laser beam turned the gamma phase back to the ferromagnetic alpha phase, application of this method to a magnetic circuit of magnetic attachments enabled to get attractive force as same as those of present products. We also examined possibility of the induction of biomedical tissue by a static magnetic field using the magnetic circuit. When endocapillary cells were exposed in the static magnetic field, the magnetic field tended to excite them with respect to length, area and number of branch of newborn blood vessels.

Free Research Field

歯科生体材料学