Development of highly sensitive handheld device for real-time detection of bacteria in food

Kewei Zhang; Anxue Zhang; Liling Fu; Bryan A. Chin; Z.-Y. Cheng

doi:10.1117/12.849762

20 April 2010 Development of highly sensitive handheld device for real-time detection of bacteria in food

Kewei Zhang, Anxue Zhang, Liling Fu, Bryan A. Chin, Z.-Y. Cheng

Proceedings Volume 7676, Sensing for Agriculture and Food Quality and Safety II; 76760M (2010) https://doi.org/10.1117/12.849762
Event: SPIE Defense, Security, and Sensing, 2010, Orlando, Florida, United States

Abstract

To ensure the safety of food, a detection device, which can detect/monitor the present of bacteria in a real-time manner and can be easily used for in-field tests, is highly desirable. Recently, magnetostrictive particles (MSPs) as a new type of high-performance biosensor have been developed. The detection of various bacteria and spores in food with high sensitivity has already been experimentally demonstrated. To fully use the technique for food safety, two miniaturized interrogation systems based on frequency-domain and time-domain technique are developed to fabricate a handheld detection device. The detection of Salmonella typhimurium (S. typhimurium) in liquid using a time-domain based interrogation system was demonstrated.

Citation Download Citation

Kewei Zhang, Anxue Zhang, Liling Fu, Bryan A. Chin, and Z.-Y. Cheng "Development of highly sensitive handheld device for real-time detection of bacteria in food", Proc. SPIE 7676, Sensing for Agriculture and Food Quality and Safety II, 76760M (20 April 2010); https://doi.org/10.1117/12.849762

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available