Three team for European smart LED Covid-19 sanitiser without UVC

May 11, 2021 // By Nick Flaherty
Three team for European smart LED Covid-19 sanitiser
Molex, Nextsense and amBX have launched a lighting disinfection system for smart buildings that uses tuned LEDs at 400 to 420nm rather than harsher UVC light.

Perhaps better know for its connectors, Molex has teamed up with Italian company and Uk software developer to launch a smart connected LED disinfecting system.

The ‘Microbial Sanitising Lighting’ system combines LED technology from Nextsense in Rome and the Molex power-over-ethernet (PoE) building platform with smart software from amBX, a spin off from Philips R&D in County Durham.

The Nextsense Biovitae system is an antimicrobial LED lighting technology (UV free) that sanitizes surfaces. However this is not UVC light at 240 and 260 nm, but longer wavelength visible light from 400nm to 420nm that Nextsense says tuned to the specific responses of bacteria and unlike UVC can be used all the time.

The key question is the efficacy of the technique for viruses which have a different structure to bacteria, but Nextsense says t

ests carried out by the Scientific Department of the Celio Military Polyclinic in Rome and the military laboratories of Germany and Sweden showed that the peaks of the Biovitae LEDs at 405nm and up to 420nm killed 99.8% of the SARS-CoV-2 (Covid-19) virus.

“Unlike UV light, Biovitae is a continuous sanitisation LED system that operates safely in the presence of people, so there is no need to wait until the area is unoccupied before starting sanitation. Biovitae breaks down the structure of the exposed microorganisms meaning they cannot survive,” said Giovanni Frezza, Director of Digital Enterprise and IoT Solutions at Molex.

There have been warnings in the UK about the use of UV-C in consumer applications but there has also been research in Germany into skin-friendly UVC LEDs.

Nextsense makes a range of LED bulbs and lighting systems that plug into existing fittings. The partnership with Molex allows the data aggregation, advanced connectivity, energy management, and control of the lighting. The SmartCore software has been used for lighting and colour control of LED systems


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