UH researcher lights up at-home COVID-19 testing with glow-in-the-dark materials

get lit

At-home COVID-19 testing is about to get lit. Photo via Getty Images

A Houston-based research team is tapping glow-in-the-dark materials to upgrade at-home rapid COVID-19 testing.

Researchers at the University of Houston have been rethinking the lateral flow assay (LFA) test used for at-home COVID-19 diagnostics. The traditional method indicates the sample's results with colored lines.

“We are making those lines glow-in-the-dark so that they are more detectable, so the sensitivity of the test is better,” says Richard Willson, a professor at the University of Houston, in a UH news release. He previously created a smartphone-based diagnostics app.

Willson's inspiration came from a familiar and nostalgic method — the glow-in-the-dark stars in a child's bedroom. In Willson's case, it was his daughter's bedroom, and within a few days his team of students and postdocs was designing a test featuring glowing nanoparticles made of phosphors.

The team evolved into a spin-off company called Clip Health, originally founded as Luminostics by two of the researchers. The operation is again evolving with new glowing applications.

“In this new development, there are two tricks. First, we use enzymes, proteins that catalyze reactions, to drive reactions that emit light, like a firefly. Second, we attached those light-emitting enzymes onto harmless virus particles, along with antibodies that bind to COVID proteins,” says Willson in the Royal Society of Chemistry’s journal Analyst.

The test now also can be read with a smartphone app. The group is also entertaining additional tests for other diseases.

“This technology can be used for detecting all kinds of other things, including flu and HIV, but also Ebola and biodefense agents, and maybe toxins and environmental contaminants and pesticides in food,” says Willson.

In addition to Willson, the original technology was explained in a paper with co-authors:

  • Katerina Kourentzi, University of Houston research associate professor of chemical and biomolecular engineering
  • Jacinta Conrad, Frank M. Tiller Associate Professor of Chemical and Biomolecular Engineering,
  • UH researchers Maede Chabi, Binh Vu, Kristen Brosamer, Maxwell Smith, and Dimple Chavan

Researcher Richard Willson says he was inspired by the glow-in-the-dark scars on his daughter's bedroom ceiling. Photo via UH.edu

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Houston investor calls for all angels to move the ecosystem forward

houston innovators podcast episode 233

One of the biggest components of a well-functioning startup ecosystem is inarguably access to capital, and Mitra Miller is dedicated to enhancing education around investment and growing Houston's investor base.

As vice president and board member of the Houston Angel Network, the oldest angel network in Texas and one of the most active angel networks in the country, Miller strives to provide guidance to new and emerging angel investors as well as founders seeking to raise money from them.

"Most founders have no idea or understanding of how investors think — we are not an ATM," Miller says on the Houston Innovators Podcast. "We are really partners you are getting married to for the next 5, 8, 10 years — sometimes longer. We need to bring your allies in every sense of the word."



HAN, a nonprofit, provides a unique opportunity for its members, as Miller explains. The group consists of around 100 individuals from all business backgrounds, so evaluating companies together brings more than just a wealth of capital — but also a wealth of knowledge.

"What HAN provides is access to investments," Miller says, adding that members have the benefit in evaluating companies together with people from different backgrounds. "Inside a group like HAN, we have extraordinary expertise."

In addition to educating both founders and investors in the process, Miller has dedicated herself to providing opportunities for students in low-income parts of Houston to learn about the startup world. Eight years ago, she founded Eagle Investors, an organization that provides a year-long program that culminates in a group of students participating as judges for the Rice Business Plan Competition.

"They spend a year learning about innovation, entrepreneurship, and investing by meeting local investors, entrepreneurs, and service providers. They go around Houston to get to visit and ... experience all of the ecosystem," Miller says.

At RBPC, the cohort of high school students evaluate the pitches and select a company to provide a $5,000 prize.

Miller herself has been a judge at RBPC for 20 years now, and she's had a front row seat for watching Houston develop as an ecosystem. She's seen the city make real progress, but has one major call to action.

"The piece that I am most aware of that I would like to see grow is activating more accredited investors who are interested in this asset class of early-stage companies and plugging in," Miller says. "They can also invest their time and knowledge to help companies in our region grow and scale."

Report: Houston secures spot on list of top 50 startup cities

by the numbers

A new ranking signals great promise for the growth of Houston’s startup network.

Houston ranks among the world’s top 50 startup cities on a new list from PitchBook, a provider of data and research about capital markets. In fact, Houston comes in at No. 50 in the ranking. But if you dig deeper into the data, Houston comes out on top in one key category.

The city earns a growth score of 63.8 out of 100 — the highest growth score of any U.S. city and the seventh highest growth score in the world. In the growth bucket, Houston sits between between Paris (64.4) and Washington, D.C. (61.7).

The PitchBook growth score reflects short-term, midterm, and long-term growth momentum for activity surrounding venture capital deals, exits, and fundraising for the past six years.

PitchBook’s highest growth score (86.5) goes to Hefei, a Chinese manufacturing hub for electric vehicles, solar panels, liquid crystal displays, home appliances, and Lenovo computers.

The overall ranking is based on a scoring system that relies on proprietary PitchBook data about private companies. The system’s growth and development scores are based on data related to deals, exits, fundraising and other factors.

Houston earns a development score of 34.1 out of 100, which puts it in 50th place globally in that regard. This score measures the size and maturity of a city’s startup network.

Topping the overall list is San Francisco, followed by New York City and Beijing. Elsewhere in Texas, Austin appears at No. 16 and Dallas at No. 36.

The ranking “helps founders, operators, and investors assess locations when deciding where to expand or invest,” says PitchBook.

“Network effects matter in venture capital: Investors get more than half of their deals through referrals, according to research led by Harvard professor Paul Gompers,” PitchBook goes on to say. “So it stands to reason that dealmakers should seek these networks out when deciding where to do business.”

4 Houston universities earn top spots for graduate programs in Texas

top schools

Houston's top-tier universities have done it again. U.S. News and World Report has four Houston-area universities among the best grad schools in the state, with some departments landing among the top 100 in the country.

U.S. News publishes its annual national "Best Graduate Schools" rankings, which look at several programs including business, education, engineering, fine arts, health, and many others. For the 2024 report, the publication decided to withhold its rankings for engineering and medical schools. It also changed the methodology for ranking business schools by adding a new "salary indicator" based on a graduate's profession.

U.S. News also added new rankings for doctoral and master's programs in several medical fields for the first time in four years, or even longer in some cases. New specialty program rankings include audiology, occupational therapy, physical therapy, pharmacy, nurse midwifery, speech-language pathology, nurse anesthesia, and social work.

"Depending on the job or field, earning a graduate degree may lead to higher earnings, career advancement and specialized skill development," wrote Sarah Wood, a U.S. News Education reporter. "But with several types of degrees and hundreds of graduate schools, it can be difficult to narrow down the options."

Without further ado, here's how the local schools ranked:

Rice University's Jesse H. Jones Graduate School of Business maintained its position as No. 2 in Texas, but slipped from its former No. 24 spot in the 2023 report to No. 29 overall in the nation in 2024. Its entrepreneurship program tied for No. 8 in the U.S, while its part-time MBA program ranked No. 15 overall.

Houston's University of Texas Health Science Centerearned the No. 3 spots in Texas for its masters and doctorate nursing programs, with the programs earning the No. 31 and No. 45 spots overall in the nation. The school ranked No. 25 nationally in the ranking of Best Public Health schools, and No. 36 for its nursing-anesthesia program.

Prairie View A&M University's Northwest Houston Center ranked No. 5 in Texas and No. 117 in the nation for its master's nursing program. Its Doctor of Nursing Practice program ranked No. 8 statewide, and No. 139 nationally.

The University of Houstonmoved up one spot to claim No. 4 spot in Texas for its graduate education program, and improved by seven spots to claim No. 63 nationally. Its graduate business school also performed better than last year to claim No. 56 in the nation, according to the report. The University of Houston Law Center is the fifth best in Texas, and 68th best in the U.S. Most notably, its health care law program earned top nods for being the seventh best in the country.

Among the new specialty program rankings, UH's pharmacy school ranked No. 41 nationally, while the speech-language pathology program earned No. 44 overall. The graduate social work and public affairs programs ranked No. 67 and No. 76, respectively, in the nation.

The full list of best graduate schools can be found on usnews.com.

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This article originally ran on CultureMap.

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