Development of Bacteria Detection Sensor Using Periodic Metal Structure

2015 Fiscal Year Final Research Report

• Project/Area Number: 25450384
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Agricultural environmental engineering/Agricultural information engineering
• Research Institution: Kyoto University
• Principal Investigator: Ogawa Yuichi 京都大学, (連合)農学研究科(研究院), 准教授 (20373285)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: バイオセンサ / 大腸菌 / テラヘルツ分光

Outline of Final Research Achievements

We proposed a sensor for food inspection using a metallic periodic structure, and its aim was developing a quick bacterial detection sensor based on the changing transmission spectra of a metallic mesh for food safety. We demonstrated and compared two ways of detection: a simple test of a total number of bacteria on a membrane filter and a determination of specific bacteria using antibody on a metallic mesh. As a result, we succeeded in detection of E. coli more than 10^5 /mL concentration. Even it was confirmed that foreign substances inhibit the specific binding with bacteria and antibody, our sensor could detect E. coli quantitatively.

Free Research Field

生物センシング工学