Takayuki Tamura

Takayuki Tamura

Shinjiro Umezu Lab., Waseda University Garduste school

Presentation Title:

Fabrication of Grooves on Gelatin Film Utilizing Micro-Electrical Discharge Machining (micro-EDM)

Time: TBD

Presentation Abstract:

Takayuki Tamura (1,*) , Ryu-ichiro Tanaka (1) , and Shinjiro Umezu (2)
(1) Department of Modern Mechanical Engineering, Waseda University Graduate School,3-4-1 Okubo Shinjuku Tokyo, JAPAN
(2) Department of Modern Mechanical Engineering, Waseda University Undergraduate School,
3-4-1 Okubo Shinjuku Tokyo, JAPAN

Biofabrication is an important research field, and one type of biomaterial is gelatin.
Gelatin is a material used in various forms such as gel and film. When an external force is applied to a gelatin film with some micro grooves, the film is considered to deform in a direction different from that without a groove. In this research, experiments were conducted with the objective of making micro grooves in gelatin film utilizing Micro-Electrical Discharge Machining (micro-EDM) [1].The method of the experiment is as follows.
Prepare a solution of 10 g of gelatin dissolved in 100 mL of water. Drop 5 mL of this solution on a PTFE plate and spread it. When this is placed at 60 % humidity for 48 hours,moisture disappears and a film can be produced. However, gelatin film without moisture does not pass electricity and micro-EDM cannot be utilized. Therefore, the electrode was pierced into a gelatin gel which was placed for 20 hours and part of the moisture was evaporated, and micro-EDM was carried out as shown in Fig.1. After drying gelatin gel for more than 20 hours,Grooves shown in Fig.2 were observed. A groove shown in Fig.2 (a) was fabricated without using silicone oil. A lot of gelatin melted due to the heat of the spark, and a thick groove was made. When silicone oil is applied to the surface of gelatin, heat is dispersed and a narrow groove can be formed as shown in Fig.2 (b). By this method, it became possible to fabricate gelatin films having micro grooves.

Biography:

Born in Japan
Education :
Department of Modern Mechanical Engineering, Waseda University Graduate
School 2018-Department of Modern Mechanical Engineering, Waseda University
Undergraduate School 2014-2018
Presentations :
Academic lecture meeting, Materials Science Society of Japan, 2018.Information, Intelligence and Precision Equipment Division lecture meeting,The Japan Society of Mechanical Engineers, 2018.

Company Profile:

Waseda University since 1882 in Tokyo, Japan
Shinjiro Umezu Lab. since 2014
The main research content is micro/nano processing.