A Houston research team is studying the effects of regenerative medicine on hearts. Photo via TMC.org

Ask any high achiever and they’ll tell you — failure is the path to success.

As Camila Hochman-Mendez puts it, “I’m like Thomas Edison, right? I know a thousand ways of how not to create a lightbulb.” But she’s not really talking about electricity. Hochman-Mendez is director of Regenerative Medicine Research and the Biorepository Core at Texas Heart Institute.

Hochman-Mendez follows another pioneering woman in the role, Doris Taylor. The younger scientist took on the prime job when Taylor left in 2020. By then, Hochman-Mendez had been at The Texas Heart Institute for three years, moving from research scientist to assistant director in just four months.

Regenerative Medicine is every bit as exciting as it sounds. At Hochman-Mendez’s lab, her team creates ghost hearts — organs from which all cells are scrubbed, leaving collagen, fibronectin, and laminin in the shape of the formerly beating ticker. The goal is to use the decellularized organs as protein scaffolds that, once injected with stem cells, will once again contract and pump blood.

Hochman-Mendez cautions that we are still years away from that point, but her lab is working hard to get there.

“The ultimate goal is to develop functional hearts that can be used for transplant,” says Hochman-Mendez.

Those hearts would be made from the patient’s own cells, avoiding organ rejection, which the scientist says is essentially trading one disease for another. But she is realistic about that fact that there are many barriers to her success.

“It does come with a lot of technical challenges,” she says.

These challenges include the simple number of cells that billions, and potentially hundreds of billions of cardiomyocytes are needed to recreate a human heart. The necessary protocols, Hochman-Mendez explains, are extremely costly and labor intensive.

It also takes 60 days for the cells to reach a maturity at which they can function. The lab recently received a pair of grants targeted at creating bioreactors that can be reliable for at least those 60 days.

The third major issue facing the Regenerative Medicine lab is contamination.

“It needs to be very sterile,” says Hochman-Mendez. “It needs to be so clean that if you have one tiny bacteria there, you’re screwed.”

Fortunately, the scientist says that her favorite hobby is computer programming. She and a physician colleague have created a robotic arm that can help to prevent the contamination that often stemmed from humans manually injecting stem cells into the decellularized organs.

This not only works towards solving the contamination problem, it also allows the team to more accurately distribute the cells that they add, using an injection map. To that end, she is producing a three-dimensional model of a protein scaffold that will allow her team and other scientists in the field of regenerative medicine to understand how the cells really disperse when they inject them.

When will her lab produce working hearts?

“I try to be very conservative on timing,” she says.

She explains that it will take significant leaps in technology to make a heart mature to the level at which it’s usable for an adult body in 60 days.

“That’s magic and I don’t believe in magic,” she says, but adds that she hopes to have a prototype ready to be tested in five years.

Hochman-Mendez does this all with a small team of nine researchers, most of whom happen to be female.

“The best candidates are the ones that I select," she says. "The majority are females. I think it’s a mix of trying to be very unbiased, but I usually don’t even look at the name before looking at the CV to preselect the people that I interview.”

And together, Hochman-Mendez are making medical history, one success-spawning failure at a time.

Camila Hochman-Mendez is director of Regenerative Medicine Research and the Biorepository Core at Texas Heart Institute. Photo via texasheart.org

Doris Taylor from the Texas Heart Institute has been named to the National Academy of Inventors.

Houston inventor receives national recognition for leading innovation

Leading lady

A Houston inventor is being recognized for her leadership within cardiovascular regenerative medicine. Doris A. Taylor from the Texas Heart Institute has been named among the National Academy of Inventors' 54 academic inventors to the spring 2019 class of NAI Senior Members.

Taylor's work involves finding alternatives for the current practices for organ transplants, including the whole organ decellularization/recellularization technologies she developed in 2008.

"Dr. Taylor's work has revolutionized the field by making it possible to bioengineer scaffolds that effectively mimic natural organs," says Dr. Darren Woodside, Texas Heart Institute's vice president for research, in a news release. "The three U.S. patents she currently holds have spun off 28 international patents, stimulating the worldwide tissue engineering industry. Her current research team is refining these technologies and developing others, potentially revolutionizing the transplantation industry and eliminating wait lists for life-saving transplantable organs."

NAI selects its honorees by identifying their impact on the welfare of society, the release reads, and have proven success with their patents, licensing, and commercialization.

NAI Senior Members are active faculty, scientists and administrators from its Member Institutions who have demonstrated remarkable innovation producing technologies that have brought, or aspire to bring, real impact on the welfare of society. They also have proven success in patents, licensing and commercialization.

An individual's nomination for the NAI Senior Member class by its supporting institution is a distinct honor and a significant way for the organization to publicly recognize its innovators on a national level.At their host institutions, Senior Members foster a spirit of innovation, while educating and mentoring the next generation of inventors.

The new class of NAI Senior Members includes representatives from 32 institutions. Texas A&M University has two researchers in the class — Robert Balog, an associate professor in the Department of Electrical and Computer Engineering, and Balakrishna Haridas, a professor of practice in the Department of Biomedical Engineering and executive director for technology commercialization and entrepreneurship for the Texas A&M Engineering Experiment Station.

This latest class of NAI Senior Members represents 32 research universities and government and non-profit research institutes. They are named inventors on over 860 issued U.S. patents. In February, two Houston inventors were named to the inaugural class of senior members.

"NAI Member Institutions support some of the most elite innovators on the horizon. With the NAI Senior Member award distinction, we are recognizing innovators that are rising stars in their fields," says Paul R. Sanberg, NAI president, in the release. "This new class is joining a prolific group of academic visionaries already defining tomorrow."

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Houston startup funding surpasses $1B in 2025 despite national slowdown

by the numbers

Houston-area startups raised more than $1 billion in venture capital during the first half of 2025 — almost double the haul for the first half of last year.

According to the new PitchBook-NCVA Venture Monitor, Houston-area startups raised $417.2 million in the second quarter of this year, compared with $281 million during the same period last year. In the first quarter of 2025, local startups collected $607.5 million in venture capital, compared with $281 million during the same period a year earlier.

Based on those figures, Houston-area startups picked up slightly over $1 billion in VC during the first half of this year, compared with $535 million in the first half of 2024.

Nationally, startups gained almost $70 billion in VC in the second quarter, down 25 percent from the same period a year ago, the PitchBook-NCVA Venture Monitor says.

Nizar Tarhuni, executive vice president of research and market intelligence at PitchBook, explained that “the VC landscape continues to navigate a fragile recovery” and is constrained by economic uncertainty.

However, startups in certain sectors are poised to attract a great deal of attention and venture capital over the next several years, according to the report.

“Companies operating in AI, national security, defense tech, fintech, and crypto — sectors aligned with the administration’s priorities — are attracting disproportionately more investor interest, and this trend will likely continue throughout President Donald Trump’s term,” the report says.

The AI sector accounted for 64 percent of VC deal value in the first half of 2025, according to the report.

Houston space companies land $150M NASA contract for vehicles and robots

space simulations

Houston-based MacLean Engineering and Applied Technology Services LLC, known as METECS, has received a five-year contract from NASA to develop simulations and software services for space-based vehicles and robots, with a maximum value of $150 million.

Two other Houston-area companies, Tietronix Software Inc. and Vedo Systems LLC, were assigned as subcontractors for the award.

"This award is a strong testament to NASA’s continued trust in the quality of our work and their confidence in our ongoing support of the human spaceflight program," John MacLean, president of METECS said in a release.

According to NASA, the awardees are tasked with providing:

  • Simulation and software services for space-based vehicle models and robotic manipulator systems
  • Human biomechanical representations for analysis and development of countermeasure devices
  • Guidance, navigation, and control of space-based vehicles for all flight phases
  • Space-based vehicle on-board computer systems simulations of flight software systems
  • Astronomical object surface interaction simulation of space-based vehicles
  • Graphics support for simulation visualization and engineering analysis
  • Ground-based and onboarding systems to support human-in-the-loop training

The contract is called Simulations and Advanced Software Services II (SASS II), and begins in October. This is the second time METECS has received the SASS award. The first also ran for five years and launched in 2020, according to USASpending.gov.

METECS specializes in simulation, software, robotics and systems analysis. It has previously supported NASA programs, including Orion, EHP, HLS, Lunar Gateway and Artemis. It also serves the energy, agriculture, education and construction sectors.

Tietronix Software has won numerous awards from NASA. Most recently, it won the NASA JSC Exceptional Software Award (2017). Some of its other customers include Houston Independent School District, Baylor College of Medicine, DARPA and Houston Methodist.

Video Systems offers software for implementing human-rated, AI and autonomous systems, as well as engineering services to address the needs of spaceflight and defense. The company has previously worked with NASA and METECS, as well as Axiom Space and defense contractor Lockheed Martin.

The three companies are headquartered near NASA’s Johnson Space Center in Houston.