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Food safety and biosensors

作者:時間:2019-06-20點擊數:

報告人 ZhongyangCheng 時間 2019年6月24日上午9:30
地點 北校區西大樓III區412

報告題目:Food safety and biosensors

報告人:ZhongyangCheng,Alumni Professor, Auburn University

報告時間:2019年6月24日星期一上午9:30

報告地點:北校區西大樓III區412

報告摘要:

Food safety and securityis key public issue. The best way to prevent the diseases related to foodborne pathogenic microorganisms is to detect their presence in food chain at its earliest stage. Therefore, various biosensors have been developed to tackle the food safety and security issues. In general, a biosensor has three units: biomolecular recognition unit, transducer, and reading unit. The biomolecular recognition unit can be antibody, enzyme, phage and protein. The reading unit can be a computer or cellphone or a special electronic device. The transducer uses different physical phenomena. Based on the transducer used, all the biosensors can be classified into acoustic, electronic, magnetic, mechanical, optical and electrochemical based transducers.

In this seminar, the critical issues related to the food safety and security will be first discussed. The current status of the detection of pathogenic microorganisms in food products and food chain is then analyzed. The advantages and drawbacks of each type of transducers will be discussed from engineering and application point view. At the end, some newly developed unique biosensors, which are designed for food safety, will be presented along with the results.

報告人簡歷:

Dr. Zhongyang Cheng is an Alumni Professor of Materials and Mechanical Engineering at Auburn University, USA. He is in charge of the student affair for the department and also serves as the Associate Director of Auburn University Detection and Food Safety (AUDFS) center, one of the research peaks at the university. He earned his BS in Physics, MS in Electronic Materials and Components, PhD in Electronic Engineering from Xi’an Jiaotong University. Right after his PhD graduation in 1995, he spent one year as a postdoc researcher at Heinrich-Hertz Institute in Berlin, Germany. He also did postdoc research at both Penn State University and University of Puerto Rico. Prior to joint Auburn University as a professor in 2002, he was a research faculty at Penn State University.

Dr. Cheng’s research interest is in the smart materials and smart structure such as sensors and actuators. In last 20+ years, Dr. Cheng organized/chaired 9 international conferences/symposiums in the related areas. Currently, he serves as the Chair of Functional Materials Committee for IEEE-DEIS and a member of IEEE sensor council. He was selected as the receiptor of the Faculty Research Award from Auburn Engineering Council (2007), one of the Faculty Awards from 3M (2006), and one of the International Union of Crystallography Young Scientist Awards (1996). He was also selected as one of the Outstanding Young Scholar Award from CNSF (國家杰出青年基金,海外,2006). Dr. Cheng has published 4 book chapters, more than 200 peer-reviewed articles with a citation of about 7500 and an h-index of 41. He also edited 7 books and owns 7 U.S. patent and 1 EU patent, among which 6 have been licensed for commercialization.

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