Ilaria Rubino is shown in this undated handout image at University of Alberta. Alberta researcher Rubino has developed technology allowing mostly salt to kill pathogens in COVID-19 droplets as they land on a mask. THE CANADIAN PRESS/HO-University of Alberta

Ilaria Rubino is shown in this undated handout image at University of Alberta. Alberta researcher Rubino has developed technology allowing mostly salt to kill pathogens in COVID-19 droplets as they land on a mask. THE CANADIAN PRESS/HO-University of Alberta

Alberta researcher gets award for COVID-19 mask innovation

The salt-coated mask is expected to be available commercially next year after regulatory approval.

Salt that crystallizes with sharp edges is the killer ingredient in the development of a reusable mask because any COVID-19 droplets that land on it would be quickly destroyed, says a researcher who is being recognized for her innovation.

Ilaria Rubino, a recent PhD graduate from the department of chemical and materials engineering at the University of Alberta, said a mostly salt and water solution that coats the first or middle layer of the mask would dissolve droplets before they can penetrate the face covering.

As the liquid from the droplets evaporates, the salt crystals grow back as spiky weapons, damaging the bacteria or virus within five minutes, Rubino said.

“We know that after the pathogens are collected in the mask, they can survive. Our goal was to develop a technology that is able to inactivate the pathogens upon contact so that we can make the mask as effective as possible.”

Rubino, who collaborated with a researcher at Georgia State University in Atlanta to advance the project she started five years ago, was recognized Tuesday with an innovation award from Mitacs. The Canadian not-for-profit organization receives funding from the federal government, most provinces and Yukon to honour researchers from academic institutions.

The reusable, non-washable mask is made of a type of polypropylene, a plastic used in surgical masks, and could be safely worn and handled multiple times without being decontaminated, Rubino said.

The idea is to replace surgical masks often worn by health-care workers who must dispose of them in a few hours, she said, adding the technology could potentially be used for N-95 respirators.

The salt-coated mask is expected to be available commercially next year after regulatory approval. It could also be used to stop the spread of other infectious illnesses, such as influenza, Rubino said.

Dr. Catherine Clase, an epidemiologist and associate professor of medicine at McMaster University in Hamilton, said the “exciting” technology would have multiple benefits.

Clase, who is a member of the Centre of Excellence in Protective Equipment and Materials in the engineering department at McMaster, said there wasn’t much research in personal protective equipment when Rubino began her work.

“It’s going to decrease the footprint for making and distributing and then disposing of every mask,” she said, adding that the mask could also address any supply issues.

The Public Health Agency of Canada recently recommended homemade masks consist of at least three layers, with a middle, removable layer constructed from a non-woven, washable polypropylene fabric to improve filtration.

Conor Ruzycki, an aerosol scientist in the University of Alberta’s mechanical engineering department, said Rubino’s innovation adds to more recent research on masks as COVID-19 cases rise and shortages of face coverings in the health-care system could again become a problem.

Ruzycki, who works in a lab to evaluate infiltration efficiencies of different materials for masks and respirators, is also a member of a physician-led Alberta group Masks4Canada, which is calling for stricter pandemic measures, including a provincewide policy on mandatory masks.

Camille Bains, The Canadian Press


Like us on Facebook and follow us on Twitter.

Want to support local journalism during the pandemic? Make a donation here.

Coronavirus

Just Posted

Former UFV Cascades wrestling coach Arjan Singh Bhullar is now the ONE heavyweight champion after defeating Brandon Vera via TKO in round two on Saturday in Singapore. (ONE Championship)
Former UFV wrestling coach wins MMA championship

Arjan Singh Bhullar captures ONE heavyweight title, first Indian origin fighter to achieve honour

Jamie and Erin O’Neill, who are renting a 107-year-old house at 45837 Knight Rd., are wanting to save it from the wrecking ball and move it when it comes time for the owners of the house to build a new house on the property. They are pictured here outside the home on Tuesday, May 11, 2021. (Jenna Hauck/ Chilliwack Progress)
Chilliwack couple wants to save 107-year-old home from demolition, asking for community support

O’Neills have less than year to find new property, raise funds to move Knight Road house

Archway Community Services is among local agencies receiving one-time grants through the Civil Forfeiture Crime Prevention and Remediation grant program. (Photo courtesy of Archway)
Nine Abbotsford projects receive $345K in civil forfeiture grants

Funds awarded to projects aimed at prevention of crime and domestic violence

Karl Eha showing off a fishing rod that was originally made in 1972. Patrick Penner photo.
Mission’s Eha Sports offering store credit for old fishing gear, plans to donate to poor Latin American children

Karl Eha recalls time as hungry kid in post-war Germany, says fishing kept him full

Vehicles line up for the Greater Vancouver Drive-Thru Food Truck Festival at the Chilliwack Coliseum parking lot on March 27. The touring event comes to Abbotsford this weekend, May 15 and 16. (Photo: Jenna Hauck/Chilliwack Progress)
Drive-Thru Food Truck Festival takes place in Abbotsford

Event runs May 15 and 16 at Tradex, featuring 12 trucks each day

Daily confirmed COVID-19 cases reported to B.C. public health, seven-day rolling average in white, to May 12, 2021. (B.C. Centre for Disease Control)
B.C. preparing ‘Restart 2.0’ from COVID-19 as June approaches

Daily infections fall below 500 Friday, down to 387 in hospital

Astra Zeneca vaccine waits for injection in a Feb. 3, 2021 file photo. A Langley man has become the second B.C. resident to suffer a blood clot following an injection. (AP Photo/Frank Augstein)
B.C. man required emergency surgery after AstraZeneca vaccination

Shaun Mulldoon suffered ‘massive blood clot’ after jab

Chilliwack’s Kile Brown, performing as drag queen Hailey Adler, dances and lip syncs in front of hundreds of people during the inaugural Chilliwack Pride Barbecue at the Neighbourhood Learning Centre on Aug. 24, 2019. Monday, May 17 is International Day Against Homophobia, Transphobia and Biphobia. (Jenna Hauck/ Chilliwack Progress file)
Unofficial holidays: Here’s what people are celebrating for the week of May 16 to 22

International Day Against Homophobia, Talk Like Yoda Day, Sea Monkey Day all coming up this week

Bradley Priestap in an undated photo provided to the media some time in 2012 by the London Police Service.
Serial sex-offender acquitted of duct tape possession in B.C. provincial court

Ontario sex offender on long-term supervision order was found with one of many ‘rape kit’ items

Rich Coleman, who was responsible for the gaming file off and on from 2001 to 2013, was recalled after his initial testimony to the Cullen Commission last month. (Screenshot)
Coleman questioned over $460K transaction at River Rock during B.C. casinos inquiry

The longtime former Langley MLA was asked about 2011 interview on BC Almanac program

Steven Shearer, <em>Untitled. </em>(Dennis Ha/Courtesy of Steven Shearer)
Vancouver photographer’s billboards taken down after complaints about being ‘disturbing’

‘Context is everything’ when it comes to understanding these images, says visual art professor Catherine Heard

Chief Public Health Officer Theresa Tam listens to a question during a news conference, in Ottawa. THE CANADIAN PRESS/Adrian Wyld
Restrictions will lift once 75% of Canadians get 1 shot and 20% are fully immunized, feds say

Federal health officials are laying out their vision of what life could look like after most Canadians are vaccinated against COVID-19

Cannabis bought in British Columbia (Ashley Wadhwani/Black Press Media)
Is it time to start thinking about greener ways to package cannabis?

Packaging suppliers are still figuring eco-friendly and affordable packaging options that fit the mandates of Cannabis Regulations

Most Read