3 Houston innovators to know this week

who's who

This week's innovators to know in Houston includes Ayse McCracken of Ignite Healthcare Network, Philipp Sitter of VIPinsiders, and Diane Yoo of Medingenii. Photos courtesy

Editor's note: In today's Monday roundup of Houston innovators, I'm introducing you to three innovators — from health care investing to marketing technology — all making headlines in Houston this week.

Ayse McCracken, founder and board chair of Ignite Healthcare Network

Ayse McCracken joins the Houston Innovators Podcast to discuss women in health care and Ignite Madness. Photo courtesy of Ignite

When the pandemic hit and shut down businesses across the world, Ayse McCracken knew immediately what group of people were likely going to be the most affected: Women in health care. It just so happens that her nonprofit organization, Ignite Healthcare Network, exists to serve this same group of people, so she got to work on creating online events that were intentional and meaningful.

"With COVID, it has only escalated the importance of our work, so we've elevated our voices through our webinar series," McCracken says on this week's Houston Innovators Podcast.

This week, Ignite's virtual startup competition concludes with the finals. She shares more about the program and Ignite's mission on the episode. Click here to read more and stream the episode.

Philipp Sitter, founder of VIPinsiders

Restaurateur Philipp Sitter launched VIPinsiders last year. Photo courtesy of VIPinsiders

Restaurants have undoubtedly suffered due to loss of business during the shutdown, but they face an uphill battle back to normalcy, and restaurateur Philipp Sitter knew his tech tool could help. He created VIPinsiders as a marketing tool to reach customers in a data-driven way.

"The restaurant gets to know me [the customer], it understands how often I visit, it also gets to reward my visitation," explains Sitter. "Most importantly, it reminds me to come back when I haven't visited in a while."

Data recorded by VIPinsiders shows that 48 percent of users visit restaurants with the platform "more often" in the first 90 days. Click here to read more.

Diane Yoo, managing partner at Medingenii

Diane Yoo, who was hospitalized due to COVID-19 earlier this year, created a VC fund that's investing in health tech solutions for the disease. Photo courtesy of Medingenii

Just a few weeks after being hospitalized from COVID-19, Diane Yoo was investing in a medical device startup that could have made a world of difference to her recovery. After closing its initial fund, Medingenii invested in several Houston health startups including Vitls, a wearable device that can track and send vitals remotely.

"The pandemic has really validated some of the business models we're invested in," she tells InnovationMap.

Now, fueled by her first round of success and eager to advance other life-changing technologies, Yoo is looking toward a second fund. Click here to read more.

Diane Yoo, who was hospitalized due to COVID-19 earlier this year, created a VC fund that's investing in health tech solutions for the disease. Photo courtesy of Medingenii

Houston investor recovers from COVID-19 — then funds startups innovating solutions for the disease

money moves

While so many of Houston's venture capital groups and entrepreneurs have been figuring out the best ways to navigate fundraising amid a pandemic, Diane Yoo managed to close an oversubscribed initial fund and deployed investments into health tech startups during COVID-19 — while also recovering from the disease itself.

Entrepreneur turned investor Diane Yoo launched her health tech-focused venture capital fund, Medingenii Capital, last year, but didn't start fundraising for its initial fund until this year.

Yoo says she and her partners, entrepreneur and investor Greg Campbell, neurologist Dr. Eddie Patton, Dr. Sreedhar Mandayam, and investor Gen Fukunaga, were virtually meeting with over a dozen potential investors weekly and closed the round in under two months.

It was right around closing when Yoo says she caught COVID-19.

"It ravaged every part of my body, and I ended up having to be hospitalized because I couldn't breathe," she says.

Yoo recovered after a month and a half of enduring the disease, only to come out of that experience to fund innovative Houston companies working on COVID-19 solutions. Medingenii focuses on early stage health tech, including genomics, health IT, medical devices, and patient engagement.

"The pandemic has really validated some of the business models we're invested in," she tells InnovationMap.

One example from Medingenii's portfolio is Houston-based medical device company, Vitls. The company's technology includes a wearable device that can monitor vital signs and sync with a smartphone app and sends key information to doctors remotely.

As Yoo thinks back to her COVID-19 treatment, Vitls could have helped her and her fellow patients get out of the crowded hospital wing and home to recover sooner — with the peace of mind of remote care thanks to the device.

"When I was in the ER room, it was overcrowded," Yoo says. "If you were not seriously ill, they would dismiss you because there was just no room. But if you went home with Vitls, you could have sent all your vitals to your doctor from home."

Fueled by a mission to find more health tech solutions like Vitls and with the quick pace of her first fund — Yoo says she's already deployed the capital into Houston-based startups and is looking toward the second fund, which will again focus on Houston startups.

"We really love Houston," Yoo says. "We want to invest a lot of our fund here, and we continue to do that and plan to do that. We see a lot of opportunity in Houston and look forward to working with the innovation ecosystem here."

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Rice University researchers unveil new model that could sharpen MRI scans

MRI innovation

Researchers at Rice University, in collaboration with Oak Ridge National Laboratory, have developed a new model that could lead to sharper imaging and safer diagnostics using magnetic resonance imaging, or MRI.

In a study recently published in The Journal of Chemical Physics, the team of researchers showed how they used the Fokker-Planck equation to better understand how water molecules respond to contrast agents in a process known as “relaxation.” Previous models only approximated how water molecules relaxed around contrasting agents. However, through this new model, known as the NMR eigenmodes framework, the research team has uncovered the “full physical equations” to explain the process.

“The concept is similar to how a musical chord consists of many notes,” Thiago Pinheiro, the study’s first author, a Rice doctoral graduate in chemical and biomolecular engineering and postdoctoral researcher in the chemical sciences division at Oak Ridge National Laboratory, said in a news release. “Previous models only captured one or two notes, while ours picks up the full harmony.”

According to Rice, the findings could lead to the development and application of new contrast agents for clearer MRIs in medicine and materials science. Beyond MRIs, the NMR relaxation method could also be applied to other areas like battery design and subsurface fluid flow.

“In the present paper, we developed a comprehensive theory to interpret those previous molecular dynamics simulations and experimental findings,” Dilipkumar Asthagiri, a senior computational biomedical scientist in the National Center for Computational Sciences at Oak Ridge National Laboratory, said in the release. ”The theory, however, is general and can be used to understand NMR relaxation in liquids broadly.”

The team has also made its code available as open source to encourage its adoption and further development by the broader scientific community.

“By better modeling the physics of nuclear magnetic resonance relaxation in liquids, we gain a tool that doesn’t just predict but also explains the phenomenon,” Walter Chapman, a professor of chemical and biomolecular engineering at Rice, added in the release. “That is crucial when lives and technologies depend on accurate scientific understanding.”

The study was backed by The Ken Kennedy Institute, Rice Creative Ventures Fund, Robert A. Welch Foundation and Oak Ridge Leadership Computing Facility at Oak Ridge National Laboratory.

Houston-area lab grows with focus on mobile diagnostics and predictive medicine

mobile medicine

When it comes to healthcare, access can be a matter of life and death. And for patients in skilled nursing facilities, assisted living or even their own homes, the ability to get timely diagnostic testing is not just a convenience, it’s a necessity.

That’s the problem Principle Health Systems (PHS) set out to solve.

Founded in 2016 in Clear Lake, Texas, PHS began as a conventional laboratory but quickly pivoted to mobile diagnostics, offering everything from core blood work and genetic testing to advanced imaging like ultrasounds, echocardiograms, and X-rays.

“We were approached by a group in a local skilled nursing facility to provide services, and we determined pretty quickly there was a massive need in this area,” says James Dieter, founder, chairman and CEO of PHS. “Turnaround time is imperative. These facilities have an incredibly sick population, and of course, they lack mobility to get the care that they need.”

What makes PHS unique is not only what they do, but where they do it. While they operate one of the largest labs serving skilled nursing facilities in the state, their mobile teams go wherever patients are, whether that’s a nursing home, a private residence or even a correctional facility.

Diagnostics, Dieter says, are at the heart of medical decision-making.

“Seventy to 80 percent of all medical decisions are made from diagnostic results in lab and imaging,” he says. “The diagnostic drives the doctor’s or the provider’s next move. When we recognized a massive slowdown in lab results, we had to innovate to do it faster.”

Innovation at PHS isn’t just about speed; it’s about accessibility and precision.

Chris Light, COO, explains: “For stat testing, we use bedside point-of-care instruments. Our phlebotomists take those into the facilities, test at the bedside, and get results within minutes, rather than waiting days for results to come back from a core lab.”

Scaling a mobile operation across multiple states isn’t simple, but PHS has expanded into nine states, including Texas, Oklahoma, Kansas, Missouri and Arizona. Their model relies on licensed mobile phlebotomists, X-ray technologists and sonographers, all trained to provide high-level care outside traditional hospital settings.

The financial impact for patients is significant. Instead of ambulance rides and ER visits costing thousands, PHS services often cost just a fraction, sometimes only tens or hundreds of dollars.

“Traditionally, without mobile diagnostics, the patient would be loaded into a transportation vehicle, typically an ambulance, and taken to a hospital,” Dieter says. “Our approach is a fraction of the cost but brings care directly to the patients.”

The company has also embraced predictive and personalized medicine, offering genetic tests that guide medication decisions and laboratory tests that predict cognitive decline from conditions like Alzheimer's and Parkinson’s.

“We actively look for complementary services to improve patient outcomes,” Dieter says. “Precision medicine and predictive testing have been a great value-add for our providers.”

Looking to the future, PHS sees mobile healthcare as part of a larger trend toward home-based care.

“There’s an aging population that still lives at home with caretakers,” Dieter explains. “We go into the home every day, whether it’s an apartment, a standalone home, or assisted living. The goal is to meet patients where they are and reduce the need for hospitalization.”

Light highlighted another layer of innovation: predictive guidance.

“We host a lot of data, and labs and imaging drive most treatment decisions,” Light says. “We’re exploring how to deploy diagnostics immediately based on results, eliminating hours of delay and keeping patients healthier longer.”

Ultimately, innovation at PHS isn’t just about technology; it’s about equity.

“There’s an 11-year life expectancy gap between major metro areas and rural Texas,” Dieter says. “Our innovation has been leveling the field, so everyone has access to high-quality diagnostics and care, regardless of where they live.”

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