Rice University students and staff team up with Canadian company to make low-cost ventilators

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A Houston-based team of scientists and students have developed a low-cost ventilator. Photo courtesy of Rice University

As the COVID-19 case numbers continue to grow, hospitals around the world are either experiencing or expecting a shortage of ventilation units. In Houston, a team of students and staff at Rice University have designed a solution.

Along with Canadian global health design firm, Metric Technologies, the Rice team has developed an automated bag valve mask ventilator that can be crafted for less than $300. Moreover, the team expects to share the designs so that these low-cost machines can be produced everywhere.

The project is being called Take a Breatherand was inspired by an early prototype that a group of engineering seniors developed in 2019 at Rice's Brown School of Engineering'sOshman Engineering Design Kitchen, or OEDK. The idea was to take a bag valve mask, which medical professionals use manually by squeezing with their hands, and create a device that can instead compress the bag automatically.

The parts of the device are largely created via 3D printing and laser cut, according to a press release from Rice, and only took around a week to prototype. While the original project was created to help emergency medicine professionals using a manual ventilator, the device is very relevant in the current coronavirus crisis.

"The immediate goal is a device that works well enough to keep noncritical COVID-19 patients stable and frees up larger ventilators for more critical patients," says Amy Kavalewitz, executive director of the OEDK, in the release.

As principal at Metric Technologies, Dr. Rohith Malya, who is assistant professor of emergency medicine at Baylor College of Medicine and an adjunct assistant professor of bioengineering at Rice, saw the growing need for for automated ventilator masks in emergency medicine.

"This is a clinician-informed end-to-end design that repurposes the existing BVM global inventory toward widespread and safe access to mechanical ventilation," Malya says in the release.

According to Malya, more than 100 million bag valve masks are produced annually. The designed device, which can work with these bags, has been named the ApolloBVM — a nod to when President John F. Kennedy announced from the Rice campus that it was his mission to get America to the moon.

"This project appeals to our ingenuity, it's a Rice-based project and it's for all of humanity," he says in the release. "And we're on an urgent timescale. We decided to throw it all on the table and see how far we go."

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UH researchers develop breakthrough material to boost efficiency of sodium-ion batteries

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A research lab at the University of Houston has developed a new type of material for sodium-ion batteries that could make them more efficient and boost their energy performance.

Led by Pieremanuele Canepa, Robert Welch assistant professor of electrical and computer engineering at UH, the Canepa Research Laboratory is working on a new material called sodium vanadium phosphate, which improves sodium-ion battery performance by increasing the energy density. Energy density is the amount of energy stored per kilogram, and the new material can do so by more than 15 percent. With a higher energy density of 458 watt-hours per kilogram — compared to the 396 watt-hours per kilogram in older sodium-ion batteries — this material brings sodium technology closer to competing with lithium-ion batteries, according to the researchers.

The Canepa Lab used theoretical expertise and computational methods to discover new materials and molecules to help advance clean energy technologies. The team at UH worked with the research groups headed by French researchers Christian Masquelier and Laurence Croguennec from the Laboratoire de Reáctivité et de Chimie des Solides, which is a CNRS laboratory part of the Université de Picardie Jules Verne, in Amiens France, and the Institut de Chimie de la Matière Condensée de Bordeaux, Université de Bordeaux, Bordeaux, France for the experimental work on the project.

The researchers then created a battery prototype using the new materia sodium vanadium phosphate, which demonstrated energy storage improvements. The material is part of a group called “Na superionic conductors” or NaSICONs, which is made to let sodium ions move in and out of the battery during charging and discharging.

“The continuous voltage change is a key feature,” Canepa says in a news release. “It means the battery can perform more efficiently without compromising the electrode stability. That’s a game-changer for sodium-ion technology.”

The synthesis method used to create sodium vanadium phosphate may be applied to other materials with similar chemistries, which could create new opportunities for advanced energy storage. A paper of this work was published in the journal Nature Materials.

"Our goal is to find clean, sustainable solutions for energy storage," Canepa adds. "This material shows that sodium-ion batteries can meet the high-energy demands of modern technology while being cost-effective and environmentally friendly."

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This article originally appeared on EnergyCapital.

Houston hospital names leading cancer scientist as new academic head

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Houston Methodist Academic Institute has named cancer clinician and scientist Dr. Jenny Chang as its new executive vice president, president, CEO, and chief academic officer.

Chang was selected following a national search and will succeed Dr. H. Dirk Sostman, who will retire in February after 20 years of leadership. Chang is the director of the Houston Methodist Dr. Mary and Ron Neal Cancer Center and the Emily Herrmann Presidential Distinguished Chair in Cancer Research. She has been with Houston Methodist for 15 years.

Over the last five years, Chang has served as the institute’s chief clinical science officer and is credited with strengthening cancer clinical trials. Her work has focused on therapy-resistant cancer stem cells and their treatment, particularly relating to breast cancer.

Her work has generated more than $35 million in funding for Houston Methodist from organizations like the National Institutes of Health and the National Cancer Institute, according to the health care system. In 2021, Dr. Mary Neal and her husband Ron Neal, whom the cancer center is now named after, donated $25 million to support her and her team’s research on advanced cancer therapy.

In her new role, Chang will work to expand clinical and translational research and education across Houston Methodist in digital health, robotics and bioengineered therapeutics.

“Dr. Chang’s dedication to Houston Methodist is unparalleled,” Dr. Marc L. Boom, Houston Methodist president and CEO, said in a news release. “She is committed to our mission and to helping our patients, and her clinical expertise, research innovation and health care leadership make her the ideal choice for leading our academic mission into an exciting new chapter.”

Chang is a member of the American Association of Cancer Research (AACR) Stand Up to Cancer Scientific Advisory Council. She earned her medical degree from Cambridge University in England and completed fellowship training in medical oncology at the Royal Marsden Hospital/Institute for Cancer Research. She earned her research doctorate from the University of London.

She is also a professor at Weill Cornell Medical School, which is affiliated with the Houston Methodist Academic Institute.

Texas A&M awarded $1.3M federal grant to develop clean energy tech from electronic waste

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Texas A&M University in College Station has received a nearly $1.3 million federal grant for development of clean energy technology.

The university will use the $1,280,553 grant from the U.S. Department of Energy to develop a cost-effective, sustainable method for extracting rare earth elements from electronic waste.

Rare earth elements (REEs) are a set of 17 metallic elements.

“REEs are essential components of more than 200 products, especially high-tech consumer products, such as cellular telephones, computer hard drives, electric and hybrid vehicles, and flat-screen monitors and televisions,” according to the Eos news website.

REEs also are found in defense equipment and technology such as electronic displays, guidance systems, lasers, and radar and sonar systems, says Eos.

The grant awarded to Texas A&M was among $17 million in DOE grants given to 14 projects that seek to accelerate innovation in the critical materials sector. The federal Energy Act of 2020 defines a critical material — such as aluminum, cobalt, copper, lithium, magnesium, nickel, and platinum — as a substance that faces a high risk of supply chain disruption and “serves an essential function” in the energy sector.

“DOE is helping reduce the nation’s dependence on foreign supply chains through innovative solutions that will tap domestic sources of the critical materials needed for next-generation technologies,” says U.S. Energy Secretary Jennifer Granholm. “These investments — part of our industrial strategy — will keep America’s growing manufacturing industry competitive while delivering economic benefits to communities nationwide.”