AccessPath is a novel, affordable, slide-free pathology system that helps surgeons determine if they have completely removed tumors during surgery. Photo via Getty Images

The Biden-Harris administration is deploying $150 million as a part of its Cancer Moonshot initiative, and a research team led by Rice University is getting a slice of that pie.

AccessPath is a novel, affordable, slide-free pathology system that helps surgeons determine if they have completely removed tumors during surgery. Rebecca Richards-Kortum, a Rice bioengineering professor and director of the Rice360 Institute for Global Health Technologies, is the lead PI on the project that is receiving up to $18 million over five years from the Advanced Research Projects Agency for Health (ARPA-H).

“Because of its low cost, high speed, and automated analysis, we believe AccessPath can revolutionize real-time surgical guidance, greatly expanding the range of hospitals able to provide accurate intraoperative tumor margin assessment and improving outcomes for all cancer surgery patients,” Richards-Kortum says in a news release.

The project is focused on two types of cancer, breast and head and neck cancer, and Ashok Veeraraghavan, chair of Rice’s Department of Electrical and Computer Engineering and a professor of electrical and computer engineering and computer science, is a co-PI and Tomasz Tkaczyk, a professor of bioengineering and electrical and computer engineering at Rice, is also a collaborator on the project.

AccessPath is addressing the challenge surgeons face of identifying the margin where tumor tissue ends and health tissue begins when removing tumors. The project not only hopes to provide a more exact solution but do so in an affordable way.

“Precise margin assessment is key to the oncologic success of any cancer operation,” adds Dr. Ana Paula Refinetti, an associate professor in the Department of Breast Surgical Oncology at The University of Texas MD Anderson Cancer Center and one of the lead surgeons PIs on the project. “The development of a new low-cost technology that enables immediate margin assessment could transform the landscape of surgical oncology — particularly in low-resource settings, reducing the number of repeat interventions, lowering cancer care costs and improving patient outcomes.”

The project optimizing margin identification with a fast-acting, high-resolution microscope, effective fluorescent stains for dying tumor margins, and artificial intelligence algorithms.

AccessPath is a collaboration between Rice and MD Anderson Cancer Center, other awardees in the grant include the University of Texas Health School of Dentistry, Duke University, Carnegie Mellon University and 3rd Stone Design.

“AccessPath is exactly the kind of life-changing research and health care innovation we are proud to produce at Rice, where we’re committed to addressing and solving the world’s most pressing medical issues,” Ramamoorthy Ramesh, Rice’s executive vice president for research, says in the release. “Partnering with MD Anderson on this vital work underscores the importance of such ongoing collaborations with our neighbors in the world’s largest medical center. I am thrilled for Rebecca and her team; it’s teamwork that makes discoveries like these possible.”

Rebecca Richards-Kortum, a Rice bioengineering professor and director of the Rice360 Institute for Global Health Technologies, is the lead PI on the project. Photo by Jeff Fitlow/Rice University

Dr. William Cohn is the chief medical officer for BiVACOR, a medical device company creating the first total artificial heart. Photo via TMC

Why this Houston medical device innovator is pumped up for the first total artificial heart

HOUSTON INNOVATORS PODCAST EPISODE 248

It's hard to understate the impact Dr. William Cohn has had on cardiovascular health as a surgeon at the Texas Heart Institute or on health care innovation as the director of the Center for Device Innovation at the Texas Medical Center. However, his role as chief medical officer of BiVACOR might be his most significant contribution to health care yet.

The company's Total Artificial Heart is unlike any cardiovascular device that's existed, Cohn explains on the Houston Innovators Podcast. While most devices are used temporarily for patients awaiting a heart transplant, BiVACOR's TAH has the potential to be a permanent solution for the 200,000 patients who die of heart failure annually. Last year, only around 4,000 patients were able to receive heart transplants.

"Artificial hearts historically have had bladders that ejected and filled 144,000 times a day. They work great for temporary support, but no one is suggesting they are permanent devices," Cohn says on the show.

The difference with BiVACOR's device is it abandons the bladder approach. Cohn explains that as assist pumps evolved — something his colleague, Dr. Bud Frasier, had a huge impact on — they featured new turbine and rotor technology. Daniel Timms, BiVACOR's founder and CTO, iterated on this technology beginning when he was a postdoctoral student at Queensland University of Technology in Australia.

"BiVACOR is the first artificial heart that leverages what we learned from that whole period — it has no bladders, it has no valves. It has one moving part, and that moving part is suspended in an electromagnetic field controlled by a computer and changed thousands of times a second," Cohn says. "It will never wear out, and that's why we think it's the world's first total artificial heart."

The company is seeing momentum, celebrating its first successful human implantation last month. The device was used for eight days on a patient at Baylor St. Luke’s Medical Center before the patient received a heart transplant.

Cohn says that BiVACOR has plans to use the TAH as "bridge-to-transplant" device in several other surgeries and expects to get FDA approval for that purpose in the next three to four years before working toward clearance for total artificial heart transplants.

Cohn has worked to support medical device startups at CDI at TMC for the seven years it has existed — first under Johnson and Johnson and then under TMC when it took the program over. He describes the center and its location as the ideal place for developing the future of health care, with Houston rising up to compete with regions known for medical device success — both coasts and Minnesota.

"Being in the shadow of the largest medical center on the planet — 106,000 employees show up there every 24 hours," Cohn says, "if you want to innovate, this is the place to do it."

Dr. Toby Hamilton is a leader in Houston's health care innovation ecosystem, and he joins the Houston Innovators Podcast to discuss his latest endeavor, which is rethinking primary and preventative care. Photo via tmc.edu

Health care leader says Houston's innovation ecosystem is shifting into third gear

houston innovators podcast episode 113

It's never been a better time for health care innovation in Houston. At least, that's what Dr. Toby Hamilton as observed in his time as a health care startup founder and innovation leader in Houston.

"Houston is absolutely beginning to show up on the national radar regarding health care innovation — as we should," Hamilton says on this week's episode of the Houston Innovators Podcast. "We are shifting our innovation vehicle into third gear for the first time, and I'm excited to see what fourth gear looks like, because it's around the corner.

Hamilton started his career as a physician before founding Emerus Holdings, a micro-hospital system in the Houston area which later exited to private equity. He also founded a nonprofit focused on connecting hospital innovation leaders called the Healthcare Innovators Professional Society and led the Texas Medical Center's Biodesign program for two years.

Over the years, he says he's seen the potential develop for Houston to hold a significant role in health care innovation across the world — it's just going to take all hands on deck.

"As a community, if we can get behind that vision and be the place that tests, develops, and creates opportunities, Houston has the potential to be unlike anything in the world," he says on the show.

Hamilton hopes to contribute to that momentum and his latest endeavor is tackling a huge obstacle in health care: access. He founded Hamilton Health Box in 2019 and had a full year of operations including a pilot program before the COVID-19 shutdown.

Essentially, Hamilton's vision recreates the traditional method of providing health care access to a company's employee base. The program brings an on-site care team to the company's offices so that employee patients have immediate access to treatment and preventative care.

"Hamilton Health Box that was designed to deliver the lowest possible price of primary and preventative care," Hamilton says. "We built that to be able to take that care to the jobsite and meet the customer where they are at."

In the new year, Hamilton says he hopes to expand on this model and reach groups of people without access to this type of care — like in rural communities.

He shares more on his work and Houston as a health care innovation leader on the podcast. Listen to the full interview below — or wherever you stream your podcasts — and subscribe for weekly episodes.


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Houston researcher builds radar to make self-driving cars safer

eyes on the road

A Rice University researcher is giving autonomous vehicles an “extra set of eyes.”

Current autonomous vehicles (AVs) can have an incomplete view of their surroundings, and challenges like pedestrian movement, low-light conditions and adverse weather only compound these visibility limitations.

Kun Woo Cho, a postdoctoral researcher in the lab of Rice professor of electrical and computer engineering Ashutosh Sabharwal, has developed EyeDAR to help address such issues and enhance the vehicles’ sensing accuracy. Her research was supported in part by the National Science Foundation.

The EyeDAR is an orange-sized, low-power, millimeter-wave radar that could be placed at streetlights and intersections. Its design was inspired by that of the human eye. Researchers envision that the low-cost sensors could help ensure that AVs always pick up on emergent obstacles, even when the vehicles are not within proper range for their onboard sensors and when visibility is limited.

“Current automotive sensor systems like cameras and lidar struggle with poor visibility such as you would encounter due to rain or fog or in low-lighting conditions,” Cho said in a news release. “Radar, on the other hand, operates reliably in all weather and lighting conditions and can even see through obstacles.”

Signals from a typical radar system scatter when they encounter an obstacle. Some of the signal is reflected back to the source, but most of it is often lost. In the case of AVs, this means that "pedestrians emerging from behind large vehicles, cars creeping forward at intersections or cyclists approaching at odd angles can easily go unnoticed," according to Rice.

EyeDAR, however, works to capture lost radar reflections, determine their direction and report them back to the AV in a sequence of 0s and 1s.

“Like blinking Morse code,” Cho added. “EyeDAR is a talking sensor⎯it is a first instance of integrating radar sensing and communication functionality in a single design.”

After testing, EyeDAR was able to resolve target directions 200 times faster than conventional radar designs.

While EyeDAR currently targets risks associated with AVs, particularly in high-traffic urban areas, researchers also believe the technology behind it could complement artificial intelligence efforts and be integrated into robots, drones and wearable platforms.

“EyeDAR is an example of what I like to call ‘analog computing,’” Cho added in the release. “Over the past two decades, people have been focusing on the digital and software side of computation, and the analog, hardware side has been lagging behind. I want to explore this overlooked analog design space.”

12 winners named at CERAWeek clean tech pitch competition in Houston

top teams

Twelve teams from around the country, including several from Houston, took home top honors at this year's Energy Venture Day and Pitch Competition at CERAWeek.

The fast-paced event, held March 25, put on by Rice Alliance, Houston Energy Transition Initiative and TEX-E, invited 36 industry startups and five Texas-based student teams focused on driving efficiency and advancements in the energy transition to present 3.5-minute pitches before investors and industry partners during CERAWeek's Agora program.

The competition is a qualifying event for the Startup World Cup, where teams compete for a $1 million investment prize.

PolyJoule won in the Track C competition and was named the overall winner of the pitch event. The Boston-based company will go on to compete in the Startup World Cup held this fall in San Francisco.

PolyJoule was spun out of MIT and is developing conductive polymer battery technology for energy storage.

Rice University's Resonant Thermal Systems won the second-place prize and $15,000 in the student track, known as TEX-E. The team's STREED solution converts high-salinity water into fresh water while recovering valuable minerals.

Teams from the University of Texas won first and second place in the TEX-E competition, bringing home $25,000 and $10,000, respectively. The student winners were:

Companies that pitched in the three industry tracts competed for non-monetary awards. Here are the companies named "most-promising" by the judges:

Track A | Industrial Efficiency & Decarbonization

Track B | Advanced Manufacturing, Materials, & Other Advanced Technologies

  • First: Licube, based in Houston
  • Second: ZettaJoule, based in Houston and Maryland
  • Third: Oleo

Track C | Innovations for Traditional Energy, Electricity, & the Grid

The teams at this year's Energy Venture Day have collectively raised $707 million in funding, according to Rice. They represent six countries and 12 states. See the full list of companies and investor groups that participated here.

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This article originally appeared on our sister site, EnergyCapitalHTX.com.