A new medical device created in Houston is revolutionizing opioid withdrawal treatment. Photo via sparkbiomedical.com

Houston-based Spark Biomedical has created a revolutionary wearable device that provides unprecedented levels of opioid withdrawal relief.

The device known as the Sparrow Therapy System is worn over the ear for five to seven days and sends mild electrical signals to trigger cranial nerves that sit near the skin's surface.

Once activated, the nerves release endorphins that the body has stopped producing on its own during opioid use. The endorphins satisfy the opioid receptors and in turn reduce or prevent the intense symptoms that often come along with opioid withdrawal. According to Spark BioMed CEO Daniel Powell, the technology also helps patients better control their "flight or fight mechanisms," allowing them to make clearer, more logical decisions as they come off of the drug.

"If you ask 100 people who've gone through opioid withdrawal, I would bet 99 of them will tell you they thought they were going to die," Powell says. "Giving them the ability to manage that is huge. It's the first step towards addiction recovery. It's not solving the addiction, but it is an absolute barrier to move forward."

The product was approved by the FDA in January of 2020, after clinical trials showed that the Sparrow could meaningfully reduce withdrawal symptoms in the first hour of use. According to Powell, roughly a third of patients in the trial were completely out of withdrawal and patients' Clinical Opioid Withdrawal Scales scores reduced by more than 53 percent across the board.

Spark, which won Venture Houston's inaugural pitch competition earlier this year, partnered with Houston-based Velentium (which also happened to grow 93 percent last year after partnering with General Motors on Project V) to bring the product from concept to commercial physician prescribed product. "We needed a more sophisticated design house to help us finish it," Powell says.

The up-and-comers were connected through one of Spark's investors. Powell, in a previous career, had also sold a neurostimulator that Velentium CTO Randy Armstrong had invented.

"You're seeing more and more Houston centric medical innovation than we've ever seen before," says Velentium CEO Dan Purvis. "And the cool thing about that is there ends up being a camaraderie amongst entrepreneurs, medical researchers and scientists."

And though the release of Sparrow marks a huge milestone, neither Spark of Velentium are stopping there. Moving forward, Spark aims to conduct a massive study on how a similar technology, dubbed the Roo, can aid infants born to opioid-dependent mothers wean from the drug.

The company also aims to create a next generation Sparrow with the help of Velentium, and will look at long-term uses of the product. Powell says that Spark will look to determine if the product can prevent relapses and help to cure addiction when worn daily or regularly.

"Our big, crazy, ambitious goal is can we actually help people recover from addiction," Powell says. "We're really not addressing psychology, that's going to be in cognitive behavioral therapy. But if we can remove the neurological results of drug use, we think we can make at least start to stack the deck in the favor of the patient versus having the deck stacked completely against them all the time."

Here's what Houston startups won prizes at the inaugural Venture Houston conference. Photo via Getty Images

Inaugural Houston Venture startup pitch competition names big winners and doles out nearly $1M

taking home the W

Just a few months ago, Venture Houston 2021 was just an idea. Now, the two-day conference concluded with over 2,500 registrants and doled out nearly $1 million in cash and investment prizes to startups.

The idea was to bring together startups, investors, corporations, and anyone who cares to advance the Houston tech ecosystem, says Sandy Guitar, managing director at HX Venture Fund, at the closing event. The conference, which was put on by HXVF, the Houston Angel Network, the Rice Alliance, and Houston Exponential, wrapped up with the announcement of nine startups taking home investment or cash prizes.

In its first year, the Venture Houston conference attracted over 266 startup applications, and a group of Houston innovation leaders named 30 semifinalists that pitched on Thursday, February 4. On Friday, February 5, seven finalists pitched:

  • Koda Health
  • Spark Biomedical Inc
  • PATH EX, Inc.
  • Conversifi
  • CellChorus
  • MacroFab, Inc.
  • Mainline

The top three startups in the competition took home cash prizes — Macrofab won first place and $15,000 from Halliburton Labs, Spark Biomedical won second place and $10,000 from Softeq, and PathEx won third place and $5,000 from ChampionX.

  • Work & Mother won $250,000 from The Artemis Fund
  • MacroFab won $250,000 — $100,000 from Mercury Fund and $150,000 from Carnrite Ventures
  • Conversifi won $200,000 — $100,000 from Next Coast Ventures and $100,000 from Live Oak Venture Partners
  • Koda Health won $50,000 from Houston Angel Network
  • CellChorus won $50,000 from Texas Halo Fund
  • Nesh won $50,000 from Plug and Play
  • Cemvita Factory won $25,000 from baMa

Two previously announced prizes — $500,000 from Fitz Gate Ventures and $250,000 from Montrose Lane — were not given out.

The Venture Houston organizers are already looking forward to next year's program, but in the meantime Guitar had a parting call to action.

"Keep helping your fellow entrepreneur," she says, "that's really what Venture Houston 2021 is really about at the end of the day. The entrepreneur journey is a difficult one — often a lonely one — and sometimes one of hard knocks. Please keep finding entrepreneurs within your ecosystem. Let's help them with our advice, our capital, and our understanding."

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Houston food giant Sysco to acquire competitor in $29 billion deal

Mergers & Acquisitions

Sysco, the nation's largest food distributor, will acquire supplier Restaurant Depot in a deal worth more than $29 billion.

The acquisition would create a closer link between Sysco and its customers that right now turn to Restaurant Depot for supplies needed quickly in an industry segment known as “cash-and-carry wholesale.”

Sysco, based in Houston, serves more than 700,000 restaurants, hospitals, schools, and hotels, supplying them with everything from butter and eggs to napkins. Those goods are typically acquired ahead of time based on how much traffic that restaurants typically see.

Restaurant Depot offers memberships to mom-and-pop restaurants and other businesses, giving them access to warehouses stocked with supplies for when they run short of what they've purchased from suppliers like Sysco.

It is a fast growing and high-margin segment that will likely mean thousands of restaurants will rely increasingly on Sysco for day-to-day needs.

Restaurant Depot shareholders will receive $21.6 billion in cash and 91.5 million Sysco shares. Based on Sysco’s closing share price of $81.80 as of March 27, 2026, the deal has an enterprise value of about $29.1 billion.

Restaurant Depot was founded in Brooklyn in 1976. The family-run business then known as Jetro Restaurant Depot, has become the nation's largest cash-and-carry wholesaler.

The boards of both companies have approved the acquisition, but it would still need regulatory approval.

Shares of Sysco Corp. tumbled 13% Monday to $71.26, an initial decline some industry analysts expected given the cost of the deal.

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.”