Science – Cardinal Robotics

CDC Guidelines on Disinfection

“Fogging, fumigation, and wide-area or electrostatic spraying is not recommended as a primary method of surface disinfection and has several safety risks to consider.”

The 245nm radiation given off by UV-C lights is absorbed by the RNA and DNA of pathogens, destroying the virus and bacteria UV-C is ultraviolet light with a wavelength from 200-280 nanometers. It destroys pathogens—from the seasonal flu to E. coli and SARS-CoV-2 thus protecting humans from it. Ask the experts!

Read about the disinfecting power of UV light at Science Daily.

See the FDA’s approval of UV-C devices in fighting SARS-CoV-2 (COVID).

Destroys Airborne and On Surface Viruses and Bacteria

Our robots destroy all bacteria and viruses, on surfaces and in air, as the high intensity 254 nm light inactivates pathogens whenever it comes in contact with it.

UV-C Light and Humans

UV-C light’s exposure to humans is dangerous and at Cardinal Robotics, our sensors and engineering controls along with operator training leaves no room for error. We have a zero exposure to UV-C tolerance policy across all our devices and have spent tremendous resources in building out our solutions to make sure your employees, operators and customers are safe.

UV-C Light and Materials

UV-C light, unlike chemical disinfectants, does not harm electronics or corrode away metals. EPA led study has shown that most chemical disinfectants over time corrode away electronic materials like hard-disks. Link to study here. Unlike disinfectants, UV-C light does not harm most materials (beside organic materials). UV-C light also cannot penetrate glass or plastics (these material completely absorb UV-C light). Humans can safely work adjacent to UV-C light if separated by a glass wall.

Papers on The Effectiveness of UV-C Light for Disinfection

Paper Title	Year Published	Summary (Quotes from Paper)
Ultraviolet radiation: An interesting technology to preserve quality and safety of milk and dairy foods	2020	UV-C radiation can be considered an effective method for inactivating pathogenic and spoilage microorganisms in milk
Ultraviolet A light effectively reduces bacteria and viruses including coronavirus	2020	UVA reduces various pathogens including coronavirus-229E
Susceptibility of SARS-CoV-2 to UV irradiation	2020	SARS-CoV-2 is highly susceptible to irradiation with ultraviolet light.
Ultraviolet irradiation doses for coronavirus inactivation – review and analysis of coronavirus photoinactivation studies	2020	Since coronaviruses do not differ structurally to any great exent, the SARS-CoV-2 virus – as well as possible future mutations – will very likely be highly UV sensitive, so that common UV disinfection procedures will inactivate the new SARS-CoV-2 virus without any further modification.
Evaluation of an ultraviolet C (UVC) light-emitting device for disinfection of high touch surfaces in hospital critical areas	2019	“The implementation of the standard cleaning and disinfection procedure with the integration of the PX-UVC treatment had effective results in both the reduction of hygiene failures and in control environmental contamination by high-concern microorganisms.”
Prevention of Avian Influenza Virus by Ultraviolet Radiation	2018	“Artificial UV radiation in poultry farmhouses is a simple solution to suppress AIV outbreaks”
UV-C inactivation of foodborne bacterial and viral pathogens and surrogates on fresh and frozen berries	2018	UV-C treatments of berries at 4,000 mJ cm−2 did not produce detectable levels of furan and were assessed to be safe.
Inactivation of Ebola virus and Middle East respiratory syndrome coronavirus in platelet concentrates and plasma by ultraviolet C light and methylene blue plus visible light, respectively	2018	UVC reduced EBOV (≥4.5 log) and MERS‐CoV (≥3.7 log) infectivity
Effectiveness of an ultraviolet-C disinfection system for reduction of healthcare-associated pathogens	2017	More than 3 log10 reduction of vegetative bacteria colonies was observed after UV-C irradiation of 5 min at a distance of 3 m from the device.
Evaluating UV-C LED disinfection performance and investigating potential dual-wavelength synergy	2017	the LP UV lamp was most efficient for inactivating E. coli and MS2
Efficacy of an Automated Multiple Emitter Whole-Room Ultraviolet-C Disinfection System Against Coronaviruses MHV and MERS-CoV	2016	Efficient and automated methods of disinfecting surfaces contaminated with the Middle Eastern respiratory syndrome coronavirus (MERS-CoV) may prevent the spread of the virus. undetectable levels of MERS-CoV virus after only 5 minutes of exposure to the UV-C emitter or a percent reduction of >99.999%. Notably, UV-C disinfection is most effective when used as an adjunct to standard terminal cleaning of hard surfaces and should not be used to replace good cleaning practices
Ultraviolet C irradiation: an alternative antimicrobial approach to localized infections	2012	“With appropriate doses, UVC may selectively inactivate microorganisms while preserving viability of mammalian cells”
Effect of Ultraviolet Germicidal Irradiation on Viral Aerosols	2007	The high UV susceptibility of coronavirus aerosols suggests that UV air disinfection may be an effective tool for preventing important respiratory viral diseases
Effect of ultraviolet germicidal irradiation on viral aerosols	2007	The susceptibility of coronavirus aerosols was 7-10 times that of the MS2 and adenovirus aerosols.
Inactivation of the coronavirus that induces severe acute respiratory syndrome, SARS-CoV	2004	The virus was inactivated by ultraviolet light (UV) at 254 nm
SARS-CoV, influenza A and syncitial respiratory virus resistance against common disinfectants and ultraviolet irradiation.	2004	Irradiation of UV for few minutes (1’-2’) on the virus in culture medium resulted in the destruction of viral infectivity