U of A Researchers Explore Ways to Clean Single-Use PPE for Reuse

Samir M. El-Ghazaly (left) and Yuchun Du
Photo Submitted

Samir M. El-Ghazaly (left) and Yuchun Du

FAYETTEVILLE, Ark. – An interdisciplinary team of University of Arkansas researchers is fighting COVID-19 using microwaves and plasma to disinfect personal protective equipment for medical professionals. Researchers hope it will enable single-use equipment to be safely reused.

Samir El-Ghazaly, distinguished professor of electrical engineering, and Yuchun Du, associate professor of biological sciences, received a $299,963 grant from the National Science Foundation to investigate how microwave and plasma doses can kill the coronavirus within five minutes while preserving the integrity of equipment.

Researchers are working to understand how the effective combination of microwave and plasma doses, exposure time, humidity and temperature can destroy the virus.

“We wanted to focus on this research to improve the personal protective equipment shortage and develop a versatile and environmentally friendly decontamination approach,” El-Ghazaly said.

With virus cases on the rise and medical teams facing equipment shortages, El-Ghazaly and his team want to develop a safe and effective method for disinfection.

“The proposed disinfection process does not use chemicals or emit toxic gases,” El-Ghazaly said. “Thus, it presents an environmentally friendly approach to the decontamination process.”

The team will begin testing this summer at the University of Arkansas Engineering Research Center in south Fayetteville.

“We will build a test system that combines microwave energy and plasma,” El-Ghazaly said. “The test system will precisely control the intensity of the microwave and also the plasma density.”

The device chamber will help the team monitor the temperature and humidity.  Researchers will use influenza A viruses, which are enveloped viruses similar to COVID-19.

“Like coronaviruses, influenza A viruses are RNA viruses and are surrounded by a host-derived lipid bilayer,” El-Ghazaly said. “It has been widely used in vaccine studies and vaccine productions and has a very low risk. The effective destruction of influenza A virus would guarantee the system's capability to destroy COVID-19.”

About the University of Arkansas: The University of Arkansas provides an internationally competitive education for undergraduate and graduate students in more than 200 academic programs. The university contributes new knowledge, economic development, basic and applied research, and creative activity while also providing service to academic and professional disciplines. The Carnegie Foundation classifies the University of Arkansas among fewer than 3 percent of colleges and universities in America that have the highest level of research activity. U.S. News & World Report ranks the University of Arkansas among its top American public research universities. Founded in 1871, the University of Arkansas comprises 10 colleges and schools and maintains a low student-to-faculty ratio that promotes personal attention and close mentoring.


Nick DeMoss, director of communications
College of Engineering
479-575-5697, ndemoss@uark.edu


U of A United Way Campaign Needs You 'Now More Than Ever'

Join Deans Margaret Sova McCabe and Deacue Fields in this year's campaign, "Now More Than Ever," which has a goal of raising $100,000 to help children and families in need.

Arkansas World Trade Center Receives $124,000 in STEP Grant Funding

The World Trade Center Arkansas received more than $120,000 from the U.S. Small Business Administration on Monday, Sept. 28, to help Arkansas small businesses enter the global market.

Grant to Advance Tech for Traumatic Brain Injury Study

A biomedical engineering research team has been awarded $135,000 from the NSF to use "organ-on-a-chip" technology to study long-term impacts of traumatic brain injury and neurological diseases.

Chancellor Encourages Continued COVID-19 Testing; Shares Dean Transition

U of A Chancellor Joe Steinmetz wrote to the campus community encouraging everyone to continue getting tested for COVID-19 if they have any reason to believe they have been exposed.

Grants for Humanities Research by Faculty, Grad and Undergrad Students on Systemic Racism

The Steering Committee of the University of Arkansas Humanities Center has approved an expanded competition for grants funding humanities research on systemic racism. Applications due Oct. 31.

News Daily