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Current issue

ELEKTRO 6/2019 was released on June 6th 2019. Its digital version will be available on June 24th 2019.

Topic: Rotating electrical machines, drives and power electronics; Electromobility

Main Article
Hybrid drive of shunting locomotive

SVĚTLO (Light) 3/2019 was released on June 11th 2019. Its digital version will be available on July 17th 2019.

Fairs and exhibitions
Euroluce 2019 by designers eyes
Exhibition Light in architecture 2019
Amper 2019 in capture of sophisticated technologies

Refreshing our memory
Lighting glass from Kamenný pahorek

New Graphene-based Sensor Design Could Improve Food Safety

05.12.2018 | The Optical Society | www.osa.org

In the U.S., more than 100 food recalls were issued in 2017 because of contamination from harmful bacteria such as Listeria, Salmonella or E. coli. A new sensor design could one day make it easier to detect pathogens in food before products hit the supermarket shelves, thus preventing sometimes-deadly illnesses from contaminated food.

In the journal Optical Materials Express, researchers report a new design for a sensor that can simultaneously detect multiple substances including dangerous bacteria and other pathogens. In addition to food safety, the new design could improve detection of gases and chemicals for a wide range of other applications.

Graphene based sensor

“Our design is based on graphene sheets, which are two-dimensional crystals of carbon just one atom thick,” said research team member Bing-Gang Xiao, from China Jiliang University. The sensor is not only highly sensitive but can also be easily adjusted to detect different substances.”

Read more at The Optical Society

Image Credit: University of Manchester

-jk-