The Development of Methods for Mask and N95 Decontamination (DeMaND) study has been pre-published on medRxiv. 31 pages of background, research, testing, and groundbreaking conclusions. I hope you read it. But sometimes, the story can get lost in the science. And there is a great story here. So great, we decided to make a video about it – a quick four-minute story worth watching.

The DeMaND study findings show novel ways that Methylene Blue (a light-activated dye, or LAD) can be used to decontaminate and inactivate pathogens. It could very easily become the new gold-standard method for virus decontamination in hospitals and homes. More than that, the finding that Methylene Blue and light can provide ongoing virus destruction is groundbreaking. I can picture the researchers’ excitement in the labs at this discovery – they literally discovered something that had NEVER been known before. Life-changing.

With such impressive findings, it could be easy to gloss over and miss some of the goodness of how this study even came to be. Can you even imagine the logistical challenges faced as 52 researchers from 13 universities and laboratories worldwide began conducting tests concurrently, sharing results, and shaping the path of discovery to the results that were eventually published? All while facing their own pandemic-related challenges. The team behind the study is the best you’ll find.

Like Professor May Chu, who teaches at the University of Colorado and put together the coalition through her involvement in the World Health Organization. CDC virologists Brian Harcourt, Selcen Kilinc-Balci, and Florine Scholte. Virology professors and lab directors like David Evans and Chris Mores from the University of Alberta and George Washington University. Belinda Heyne, a leading photochemist at the University of Calgary. Drs. Thomas Lendvay, Tanner Clark, and Thor Wagner from the University of Washington and Seattle Children’s Hospital. And so many others from leading institutions around the globe. 52 in all – volunteering their time away from normal day-to-day focuses, often working into the night or all weekend long; but, focusing their time and skills to find new ways to protect fellow health workers.

We are thankful for them. I am thankful for them.

To celebrate them, their findings, and the hope the study brings, we created this video. We wanted to share the story of the study the way we see it, including some of the compelling conclusions, and share our hope for the potential realities to come.

Please check it out.


November 15, 2021
Protective Dye Methylene Blue Plus Light Proven to Inactivate "Hard-to-kill" Norovirus

Singletto's Dr. Lendvay contributed to a New MB Study


May 22, 2021
Infection Control & Hospital Epidemiology Publishes Drs. Lendvay, Chen, et al. WHO-led DeMaND Study

The Infection Control & Hospital Epidemiology medical journal has published the peer-reviewed DeMaND study. Singletto’s Dr. Tom Lendvay served as Lead Author.


May 20, 2021
Top Doctor 2021: Singletto’s Lendvay Named by Seattle Magazine

Dr. Thomas Lendvay, Singletto’s Co-Founder and Chief Medical Officer was just named a “Top Doctor” by Seattle Magazine.


March 25, 2021
A Moral Obligation: Why the Former Providence President Wants Singletto Tech Out Now

Mike Butler spent over two decades in leadership at Providence Health, growing such from a $2 billion organization to $25 billion. Upon recently retiring, Mike knew he wanted to find ways to continue impacting the lives and health of others. Now at Singletto, Mike is on a mission to bring the novel Singletto technology to market – in healthcare and beyond. But, it’s not just a passion project … upon learning about the technology, Mike felt a moral obligation to get it in as many hands as possible. More with recently retired Providence Health President Mike Butler…


February 25, 2021
Hospital News: Light kills. SARS-CoV-2, That Is.

Singletto Advisor Dr. Belinda Heyne shares DeMaND study results on Hospital News.

Lacey Duffy

Customer Experience
February 12, 2021
CBC: This simple mix of dye and light could decontaminate masks for reuse

Dr. Belinda Heyne was recently featured in a CBC piece covering the DeMaND study’s findings and the life-giving potential of dye and light.