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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Rice Business Plan Competition names startup teams for 2026 event

ready, set, pitch

The Rice Alliance for Technology and Entrepreneurship has announced the 42 student-led teams that will compete in the 26th annual Rice Business Plan Competition this spring.

The highly competitive event, known as one of the world’s largest and richest intercollegiate student startup challenges, will take place April 9-11 on Rice's campus and at the Ion. Teams in this year's competition represent 39 universities from four countries, including one team from Rice and two from the University of Texas at Austin.

Graduate student-led teams from colleges or universities around the world will present their plans before more than 300 angel, venture capital and corporate investors to compete for more than $1 million in prizes. Top teams were awarded $2 million in investment and cash prizes at the 2025 event.

The 2026 invitees include:

  • Alchemll, University of Tennessee - Knoxville
  • Altaris MedTech, University of Arkansas
  • Armada Therapeutics, Dartmouth College
  • Arrow Analytics, Texas A&M University
  • Aura Life Science, Northwestern University
  • BeamFeed, City University of New York
  • BiliRoo, University of Michigan
  • BioLegacy, Seattle University
  • BlueHealer, Johns Hopkins University
  • BRCĒ, Michigan State University
  • ChargeBay, University of Miami
  • Cocoa Potash, Case Western Reserve
  • Cosnetix, Yale University
  • Cottage Core, Kent State University
  • Crack'd Up, University of Wisconsin - Madison
  • Curbon, Princeton University
  • DialySafe, Rice University
  • Foregger Energy Systems, Babson College
  • Forge, University of California, Berkeley
  • Grapheon, University of Pittsburgh
  • GUIDEAIR Labs, University of Washington
  • Hydrastack, University of Chicago
  • Imagine Devices, University of Texas at Austin
  • Innowind Energy Solutions, University of Waterloo (Canada)
  • JanuTech, University of Washington
  • Laetech, University of Toronto (Canada)
  • Lectra Technologies, MIT
  • Legion Platforms, Arizona State University
  • Lucy, University of Pennsylvania
  • NerView Surgical, McMaster University (Canada)
  • Panoptica Technologies, Georgia Tech University
  • PowerHouse, MIT
  • Quantum Power Systems, University of Texas at Austin
  • Routora, University of Notre Dame
  • Sentivity.ai, Virginia Tech
  • Shinra Energy, Harvard University
  • Solid Air Dynamics, RWTH Aachen (Germany)
  • Spine Biotics, University of North Carolina - Chapel Hill
  • The Good Company, Michigan Tech
  • UNCHAIN, Lehigh University
  • VivoFlux, University of Rochester
  • Vocadian, University of Oxford (UK)

This year's group joins more than 910 RBPC alums that have raised more than $6.9 billion in capital, according to Rice.

The University of Michigan's Intero Biosystems, which is developing the first stem cell-driven human “mini gut,” took home the largest investment sum of $902,000 last year. The company also claimed the first-place prize.

Houston suburb ranks as No. 3 best place to retire in Texas

Rankings & Reports

Texas retirees on the hunt for the right place to settle down and enjoy their blissful retirement years will find their haven in the Houston suburb of Pasadena, which just ranked as the third-best city to retire statewide.

A new study conducted by the research team at RetirementLiving.com, "The Best Cities to Retire in Texas," compared the affordability, safety, livability, and healthcare access for seniors across 31 Texas cities with at least 90,000 residents.

Wichita Falls, about 140 miles northwest of Dallas, claimed the top spot as the No. 1 best place to retire in Texas.

The senior living experts said Pasadena has the best healthcare access for seniors in the entire state, and it ranked as the No. 8 most affordable city on the list.

"Taking care of one’s health can be stressful for seniors," the report said. "Harris County, where [Pasadena is] located, has 281.1 primary care physicians per 1,000 seniors — that’s almost 50-fold the statewide ratio of 5.9 per 1,000."

Pasadena ranked 10th overall for its livability, and ranked 25th for safety, the report added.

Meanwhile, Houston proper ranked as the No. 31 best place to retire in Texas, but its livability score was the 7th best statewide.

Seven of the Lone Star State's top 10 best retirement locales are located in the Dallas-Fort Worth Metroplex: Carrollton (No. 2), Plano (No. 4), Garland (No. 5), Richardson (No. 6), Arlington (No. 7), Grand Prairie (No. 8), and Irving (No. 9). McAllen, a South Texas border town, rounded out the top 10.

RetirementLiving said Carrollton has one of the lowest property and violent crime rates per capita in Texas, and it ranked as the No. 5 safest city on the list. About 17 percent of the city's population is aged 65 or older, which is higher than the statewide average of just 14 percent.

The top 10 best place to retire in Texas in 2026 are:

  • No. 1 – Wichita Falls
  • No. 2 – Carrollton
  • No. 3 – Pasadena
  • No. 4 – Plano
  • No. 5 – Garland
  • No. 6 – Richardson
  • No. 7 – Arlington
  • No. 8 – Grand Prairie
  • No. 9 – Irving
  • No. 10 – McAllen
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This article originally appeared on CultureMap.com.

Rice University lands $18M to revolutionize lymphatic disease detection

fresh funding

An arm of the U.S. Department of Health and Human Services has awarded $18 million to scientists at Rice University for research that has the potential to revolutionize how lymphatic diseases are detected and help increase survivability.

The lymphatic system is the network of vessels all over the body that help eliminate waste, absorb fat and maintain fluid balance. Diseases in this system are often difficult to detect early due to the small size of the vessels and the invasiveness of biopsy testing. Though survival rates of lymph disease have skyrocketed in the United States over the last five years, it still claims around 200,000 people in the country annually.

Early detection of complex lymphatic anomalies (CLAs) and lymphedema is essential in increasing successful treatment rates. That’s where Rice University’s SynthX Center, directed by Han Xiao and Lei Li, an assistant professor of electrical and computer engineering, comes in.

Aided by researchers from Texas Children’s Hospital, Baylor College of Medicine, the University of Texas at Dallas and the University of Texas Southwestern Medical Center, the center is pioneering two technologies: the Visual Imaging System for Tracing and Analyzing Lymphatics with Photoacoustics (VISTA-LYMPH) and Digital Plasmonic Nanobubble Detection for Protein (DIAMOND-P).

Simply put, VISTA-LYMPH uses photoacoustic tomography (PAT), a combination of light and sound, to more accurately map the tiny vessels of the lymphatic system. The process is more effective than diagnostic tools that use only light or sound, independent of one another. The research award is through the Advanced Research Projects Agency for Health (ARPA-H) Lymphatic Imaging, Genomics and pHenotyping Technologies (LIGHT) program, part of the U.S. HHS, which saw the potential of VISTA-LYMPH in animal tests that produced finely detailed diagnostic maps.

“Thanks to ARPA-H’s award, we will build the most advanced PAT system to image the body’s lymphatic network with unprecedented resolution and speed, enabling earlier and more accurate diagnosis,” Li said in a news release.

Meanwhile, DIAMOND-P could replace the older, less exact immunoassay. It uses laser-heated vapors of plasmonic nanoparticles to detect viruses without having to separate or amplify, and at room temperature, greatly simplifying the process. This is an important part of greater diagnosis because even with VISTA-LYMPH’s greater imaging accuracy, many lymphatic diseases still do not appear. Detecting biological markers is still necessary.

According to Rice, the efforts will help address lymphatic disorders, including Gorham-Stout disease, kaposiform lymphangiomatosis and generalized lymphatic anomaly. They also could help manage conditions associated with lymphatic dysfunction, including cancer metastasis, cardiovascular disease and neurodegeneration.

“By validating VISTA-LYMPH and DIAMOND-P in both preclinical and clinical settings, the team aims to establish a comprehensive diagnostic pipeline for lymphatic diseases and potentially beyond,” Xiao added in the release.

The ARPA-H award funds the project for up to five years.