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Current issue

ELEKTRO 12/2019 was released on December 4th 2019. Its digital version will be available on January 4th 2020.

Topic: Measurement engineering and measuring instruments

Main Article
Innovative process in partial discharge of AC and DC voltage diagnosis

SVĚTLO (Light) 6/2019 was released on December 9th 2019. Its digital version will be available on January 9th 2020.

Professional organizations activities
Light technology konference of Visegrád countries LUMEN V4 2020 – 1st announcement
23rd International conference SVĚTLO – LIGHT 2019
56th Conference of Society for development public lighting in Plzeň
What is new in CIE

Interiors lighting
Halla illuminated new Booking.com offices in Prague centre

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-