This week's roundup of Houston innovators includes Nicolaus Radford of Nauticus Robotics, Josh Teekell of SmartAC.com, and Zhifeng Ren of the Texas Center for Superconductivity at UH. Photos courtesy

Editor's note: In this week's roundup of Houston innovators to know, I'm introducing you to three local innovators across industries — from robotics to superconductivity — recently making headlines in Houston innovation.

Nicolaus Radford, founder and CEO of Nauticus Robotics

Houston-based Nauticus Robotics founder, Nicolaus Radford, shares the latest from his company and why we're primed for a hardtech movement. Image via LinkedIn

It's been a busy past year or so for Nicolaus Radford, founder and CEO of Nauticus Robotics. He's taken his company public at a difficult time for the market, launched new partnerships with the United States Marine Corps, and even welcomed a new family member.

Originally founded in 2014 as Houston Mechatronics, Nauticus Robotics has designed a fleet of underwater robots and a software platform for autonomous operations. Radford caught up with InnovationMap about these recent milestones for him and the company in an interview.

"I look back on it and it's, you know, ringing the Nasdaq bell when we listed, and giving that speech at the podium — it was a surreal moment," he tells InnovationMap. "I was excited but cautious at the same time. I mean, the life of a CEO of a public company at large, it's all about the process following a process, the regulations, the administration of the public company, the filings, the reportings — it can feel daunting. I have to rise to the occasion to tackle that in this the next stage of the company." Read more.

​Josh Teekell, founder and CEO of SmartAC.com

Josh Teekell joins the Houston Innovators Podcast to discuss the latest from his company, which just closed its series B. Photo courtesy

A Houston startup that combines unique sensor technology with software analysis has raised its next round of funding to — according to Founder and CEO Josh Teekell — turbocharge its sales.

SmartAC.com's sensors can monitor all aspects of air conditioning units and report back any issues, meaning homeowners have quicker and less costly repairs. Teekell says he's focused on sales, and he's going to do that with the $22 million raised in the series B round that closed this month. He says the company will also grow its team that goes out to deploy the technology and train the contractors on the platform.

"This funding really buys us a couple years of runway through the end of next year and allows us to focus on getting to cash flow breakeven, which is right around our wheelhouse of our abilities here in the next 12 months," Teekell says. "In general, we've accomplished everything we'd be able to accomplish on the hardware side, and now it's just about deployment." Read more.

Zhifeng Ren, director of the Texas Center for Superconductivity at UH

A team of researchers out of the Texas Center for Superconductivity at the University of Houston has discovered a faster way of transportation. Photo via UH.edu

Researchers at the University of Houston and in Germany released a proof-of-concept paper this month that uncovers a new, fuel efficient means of transportation that they say could one day make air travel and traditional freight transport obsolete.

"I call it a world-changing technology,” Zhifeng Ren, director of the Texas Center for Superconductivity at UH and author of the paper, said in a statement.

Published in the journal APL Energy, the paper demonstrates a new way of using superconductors to move vehicles along existing highways while transporting liquified hydrogen at the same time. Until now, the costs of using superconductivity for transportation has held back innovation in the field. This model also reduces the need for a separate specialized pipeline system to transport liquified hydrogen that's able to keep the fuel source at minus 424 degrees Fahrenheit. Read more.

A team of researchers out of the Texas Center for Superconductivity at the University of Houston has discovered a faster way of transportation. Photo via UH.edu

Houston researchers identify new tech for unprecedented transportation speeds

zoom, zoom

Researchers at the University of Houston and in Germany released a proof-of-concept paper this month that uncovers a new, fuel efficient means of transportation that they say could one day make air travel and traditional freight transport obsolete.

"I call it a world-changing technology,” Zhifeng Ren, director of the Texas Center for Superconductivity at UH and author of the paper, said in a statement.

Published in the journal APL Energy, the paper demonstrates a new way of using superconductors to move vehicles along existing highways while transporting liquified hydrogen at the same time. Until now, the costs of using superconductivity for transportation has held back innovation in the field. This model also reduces the need for a separate specialized pipeline system to transport liquified hydrogen that's able to keep the fuel source at minus 424 degrees Fahrenheit.

The model uses a similar concept to what's behind already existing magnetically levitating trains that operate on a magnetized rail, with superconductors embedded in the train's undercarriage. In Ren's model, superconductors would be embedded into existing highway infrastructure and magnets added to the undercarriages of vehicles. Liquified hydrogen would be used to cool the superconductor highway as vehicles move across it.

The idea could apply to trains, cargo trucks, and even personal cars, according to the paper. Better yet, the vehicles could travel up to 400 mph while on the highway. Drivers would then use the vehicle's traditional or electric motor once they exit.

"Instead of 75 mph, you could go 400 mph, from Houston to Los Angeles, or Houston to New York in just a few hours," Ren said in a statement.

Ren adds that this method would also require drivers to consume less fuel or power, cutting down on cost and environmental impact.

Technical and economic details still need to be addressed. But Ren believes "the project’s potential long-term economic and environmental benefits, would outweigh the upfront costs," according to a statement.

The paper joins a number of other innovative concepts coming out of UH in recent months. Recently, a research team at the university upgraded at-home rapid COVID-19 testing to make results more detectable via glow-in-the-dark materials.

Late last year the university also opened its

new tech transfer facility, and early this year it signed an agreement with India to bring a data center focused on energy to campus.


cropfilter_vintageloyaltyshopping_cartlocal_librarydeleteThe illustration shows the theorized superconducting highway for energy transport and storage and superconductor levitation. Image via UH.edu

UH has found a way to instantly zap COVID-10. Andriy Onufriyenko/Getty Images

University of Houston designs device that instantly kills COVID-19

ZAPPING COVID-19

While the world rushes to find a COVID-19 vaccine, scientists from the University of Houston have found a way to trap and kill the virus — instantly.

The team has designed a "catch and kill" air filter that can nullify the virus responsible for COVID-19. Researchers reported that tests at the Galveston National Laboratory found 99.8 percent of the novel SARS-CoV-2 — which causes COVID-19 — was killed in a single pass through the filter.

Zhifeng Ren, director of the Texas Center for Superconductivity at UH, collaborated with Monzer Hourani, CEO of Medistar, a Houston-based medical real estate development firm, plus other researchers to design the filter, which is described in a paper published in Materials Today Physics.

Researchers were aware the virus can remain in the air for about three hours, which required a filter that could quickly remove it. The added pressure of businesses reopening created an urgency in controlling the spread of the virus in air conditioned spaces, according to UH.

Meanwhile, to scorch the virus — which can't survive above around 158 degrees Fahrenheit — researchers instilled a heated filter. By blasting the temperature to around 392 F, they were able to kill the virus almost instantly.

The filter also killed 99.9 percent of the anthrax spores, according to researchers.

A prototype was built by a local workshop and first tested at Ren's lab for the relationship between voltage/current and temperature; it then went to the Galveston lab to be tested for its ability to kill the virus. Ren says it satisfies the requirements for conventional heating, ventilation and air conditioning (HVAC) systems.

"This filter could be useful in airports and in airplanes, in office buildings, schools and cruise ships to stop the spread of COVID-19," said Ren, MD Anderson Chair Professor of Physics at UH and co-corresponding author for the paper, in a statement. "Its ability to help control the spread of the virus could be very useful for society."

Medistar executives are also proposing a desk-top model, capable of purifying the air in an office worker's immediate surroundings, Ren added.

Developers have called for a phased roll-out of the device, with a priority on "high-priority venues, where essential workers are at elevated risk of exposure — particularly schools, hospitals and health care facilities, as well as public transit environs such as airplanes."

The hope, developers add, is that the filter will protect frontline workers in essential industries and allow nonessential workers to return to public work spaces.

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2 Houston space tech cos. celebrate major tech milestones

big wins

Two Houston aerospace companies — Intuitive Machines and Venus Aerospace — have reached testing milestones for equipment they’re developing.

Intuitive Machines recently completed the first round of “human in the loop” testing for its Moon RACER (Reusable Autonomous Crewed Exploration Rover) lunar terrain vehicle. The company conducted the test at NASA’s Johnson Space Center.

RACER is one of three lunar terrain vehicles being considered by NASA for the space agency’s Artemis initiative, which will send astronauts to the moon.

NASA says human-in-the-loop testing can reveal design flaws and technical problems, and can lead to cost-efficient improvements. In addition, it can elevate the design process from 2D to 3D modeling.

Intuitive Machines says the testing “proved invaluable.” NASA astronauts served as test subjects who provided feedback about the Moon RACER’s functionality.

The Moon RACER, featuring a rechargeable electric battery and a robotic arm, will be able to accommodate two astronauts and more than 880 pounds of cargo. It’s being designed to pull a trailer loaded with more than 1,760 pounds of cargo.

Another Houston company, Venus Aerospace, recently achieved ignition of its VDR2 rocket engine. The engine, being developed in tandem with Ohio-based Velontra — which aims to produce hypersonic planes — combines the functions of a rotating detonation rocket engine with those of a ramjet.

A rotating detonation rocket engine, which isn’t equipped with moving parts, rapidly burns fuel via a supersonic detonation wave, according to the Air Force Research Laboratory. In turn, the engine delivers high performance in a small volume, the lab says. This savings in volume can offer range, speed, and affordability benefits compared with ramjets, rockets, and gas turbines.

A ramjet is a type of “air breathing” jet engine that does not include a rotary engine, according to the SKYbrary electronic database. Instead, it uses the forward motion of the engine to compress incoming air.

A ramjet can’t function at zero airspeed, so it can’t power an aircraft during all phases of flight, according to SKYbrary. Therefore, it must be paired with another kind of propulsion, such as a rotating detonation rocket engine, to enable acceleration at a speed where the ramjet can produce thrust.

“With this successful test and ignition, Venus Aerospace has demonstrated the exceptional ability to start a [ramjet] at takeoff speed, which is revolutionary,” the company says.

Venus Aerospace plans further testing of its engine in 2025.

Venus Aerospace, recently achieved ignition of its VDR2 rocket engine. Photo courtesy of Venus Aerospace

METRO rolls out electric shuttles for downtown Houston commuters

on a roll

The innovative METRO microtransit program will be expanding to the downtown area, the Metropolitan Transit Authority of Harris County announced on Monday.

“Microtransit is a proven solution to get more people where they need to go safely and efficiently,” Houston Mayor John Whitmire said in a statement. “Connected communities are safer communities, and bringing microtransit to Houston builds on my promise for smart, fiscally-sound infrastructure growth.”

The program started in June 2023 when the city’s nonprofit Evolve Houston partnered with the for-profit Ryde company to offer free shuttle service to residents of Second and Third Ward. The shuttles are all-electric and take riders to bus stops, medical buildings, and grocery stores. Essentially, it works as a traditional ride-share service but focuses on multiple passengers in areas where bus access may involve hazards or other obstacles. Riders access the system through the Ride Circuit app.

So far, the microtransit system has made a positive impact in the wards according to METRO. This has led to the current expansion into the downtown area. The system is not designed to replace the standard bus service, but to help riders navigate to it through areas where bus service is more difficult.

“Integrating microtransit into METRO’s public transit system demonstrates a commitment to finding innovative solutions that meet our customers where they are,” said METRO Board Chair Elizabeth Gonzalez Brock. “This on-demand service provides a flexible, easier way to reach METRO buses and rail lines and will grow ridership by solving the first- and last-mile challenges that have hindered people’s ability to choose METRO.”

The City of Houston approved a renewal of the microtransit program in July, authorizing Evolve Houston to spend $1.3 million on it. Some, like council member Letitia Plummer, have questioned whether microtransit is really the future for METRO as the service cuts lines such as the University Corridor.

However, the microtransit system serves clear and longstanding needs in Houston. Getting to and from bus stops in the city with its long blocks, spread-out communities, and fickle pedestrian ways can be difficult, especially for poor or disabled riders. While the bus and rail work fine for longer distances, shorter ones can be underserved.

Even in places like downtown where stops are plentiful, movement between them can still involve walks of a mile or more, and may not serve for short trips.

“Our microtransit service is a game-changer for connecting people, and we are thrilled to launch it in downtown Houston,” said Evolve executive director Casey Brown. “The all-electric, on-demand service complements METRO’s existing fixed-route systems while offering a new solution for short trips. This launch marks an important milestone for our service, and we look forward to introducing additional zones in the new year — improving access to public transit and local destinations.”

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This article originally ran on CultureMap.