UH is investing in a nanotechnology developed on its own campus that can help prevent the spread of COVID-19. Photo courtesy of University of Houston

A nanotechnology developed at the University of Houston is about to make a big difference right on campus.

UH's Facilities/Construction Management Preventive Maintenance team is working on a project that will install air filters that are nanocoated with a material that was first developed at the UH Technology Bridge. UH Professor of Physics Seamus Curran has an extensive background in nanotech, and, as he learned more about COVID-19 and how it spreads, he started nano-coating facemasks to make them more resistant to the small particles that enable the spread of the virus.

Originally developed for the construction business, Curran's coating material could also be used to create hydrophobic facemasks, Curran discovered, and he founded a spin off company, Curran Biotech, to develop his next pandemic-proof innovation: nano-coated air filters.

"The big thing for me when we were shut down was that people couldn't go to work or school. The country can't live that way — but you can't send people back to work in a world that's not safe," Curran said last October in an interview for the Houston Innovators Podcast. "How do you create a safer environment? That's the thing that really got me going in the beginning in the summer. We looked at filters."

Listen to Professor Curran on the Houston Innovators Podcast:

Curran, who says he's learned more about air filters than he ever cared to, realized that even the most expensive air filters can only protect from 10 to 25 percent of viruses. And most buildings' HVAC systems would have to be replaced completely to allow for these pricier, more protective filters. But Curran Biotech's Capture Coating can be used on existing filters and HVAC systems.

Air filters coated with Curran Biotech's sealant were then tested at the New York Family Court Building, by DCAS-Energy Management Division, and now, ahead of the fall semester, UH is implementing the innovation in all buildings that have less than MERV-13 rated filters.

Curran Biotech's sealant can be used on existing air filters and HVAC systems. Photo via UH.edu

University of Houston professor and entrepreneur, Seamus Curran, has pivoted amid the pandemic to use his nanotechnology expertise to help reduce the spread of COVID-19. Photo courtesy of Integricote

Houston scientist taps nanotech in masks and air filters to use to prevent COVID-19 spread

HOUSTON INNOVATORS PODCAST EPISODE 52

For over a decade, Seamus Curran, a physics professor at the University of Houston, has worked on his nanotechnology coating substance. He first thought the innovation could be used on fabrics and textile coating, but he realized, once getting acquainted with the industry, he realized there wasn't an interest for a hydrophobic coating that could be used to prevent the spread of germs — at least, not yet.

"Like anything small startup company, one of the things you have to learn is you have to pivot — or you will die," says Curran, who had created his company Integricote (neé C-Voltaics) to take his innovation to market.

So pivot is what he did. Integricote now markets toward coating and sealing materials within the construction industry — wood, concrete, etc. — to protect from water damage and rotting. As Curran shares on this week's episode of the Houston Innovators Podcast, business was growing steadily. That is until COVID-19 hit.

His construction coating business slowed, much like the rest of business across the country, and classes at UH switched to online. Curran used this newfound time at home to dig deeper into the details of the virus, when an idea hit him.

"I learned the virus traveled in a wet medium," Curran says, "(our coating) is hydrophobic, meaning we can stop it from penetrating any fabrics."

Curran worked to create hydrophobic facemasks using his sealant, and the technology was lauded and covered by various news organizations. He created a new company under Integricote, called Curran Biotech, and he started thinking of the next pandemic-proof innovation he could create using his sealant.

"The big thing for me when we were shut down was that people couldn't go to work or school. The country can't live that way — but you can't send people back to work in a world that's not safe," Curran says. "How do you create a safer environment? That's the thing that really got me going in the beginning in the summer. We looked at filters."

Curran, learning more about air filters than he ever cared to, realized that even the most expensive air filters can only protect from 10 to 25 percent of viruses. And most buildings' HVAC systems would have to be replaced completely to allow for these pricier, more protective filters.

"So, you'd have to replace your equipment and your filter prices go up — and you're still not blocking the virus," Curran says.

Curran Biotech's solution is a spray coating that can be used on air filters to make them more protected from COVID-19 spread.

Curran shared more about his nanotechnology innovation — as well as his excitement for being named one of MassChallenge Texas's finalist within the 2020 Houston cohort — in the episode of the podcast. You can listen to the full interview below — or wherever you stream your podcasts — and subscribe for weekly episodes.


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Houston doctor aims to revolutionize hearing aid industry with tiny implant

small but mighty

“What is the future of hearing aids?” That’s the question that led to a potential revolution.

“The current hearing aid market and technology is old, and there are little incremental improvements, but really no significant, radical new ideas, and I like to challenge the status quo,” says Dr. Ron Moses, an ENT specialist and surgeon at Houston Methodist.

Moses is the creator of NanoEar, which he calls “the world’s smallest hearing aid.” NanoEar is an implantable device that combines the invisibility of a micro-sized tympanostomy tube with more power—and a superior hearing experience—than the best behind-the-ear hearing aid.

“You put the NanoEar inside of the eardrum in an in-office procedure that takes literally five minutes,” Moses says.

As Moses explains, because of how the human cochlea is formed, its nerves break down over time. It’s simply an inevitability that if we live long enough, we will need hearing aids.

“The question is, ‘Are we going to all be satisfied with what exists?’” he asks.

Moses says that currently, only about 20 percent of patients who need hearing aids have them. That’s because of the combination of the stigma, the expense, and the hassle and discomfort associated with the hearing aids currently available on the market. That leaves 80 percent untapped among a population of 466 million people with hearing impairment, and more to come as our population ages. In a nearly $7 billion global market, that additional 80 percent could mean big money.

Moses initially patented a version of the invention in 2000, but says that it took finding the right team to incorporate as NanoEar. That took place in 2016, when he joined forces with cofounders Michael Moore and Willem Vermaat, now the company’s president and CFO, respectively. Moore is a mechanical engineer, while Vermaat is a “financial guru;” both are repeat entrepreneurs in the biotech space.

Today, NanoEar has nine active patents. The company’s technical advisors include “the genius behind developing the brains in this device,” Chris Salthouse; NASA battery engineer Will West; Dutch physicist and audiologist Joris Dirckx; and Daniel Spitz, a third-generation master watchmaker and the original guitarist for the famed metal band Anthrax.

The NanoEar concept has done proof-of-concept testing on both cadavers at the University of Antwerp and on chinchillas, which are excellent models for human hearing, at Tulane University. As part of the TMC Innovation Institute program in 2017, the NanoEar team met with FDA advisors, who told them that they might be eligible for an expedited pathway to approval.

Thus far, NanoEar has raised about $900,000 to get its nine patents and perform its proof-of-concept experiments. The next step is to build the prototype, but completing it will take $2.75 million of seed funding.

Despite the potential for making global change, Moses has said it’s been challenging to raise funds for his innovation.

“We're hoping to find that group of people or person who may want to hear their children or grandchildren better. They may want to join with others and bring a team of investors to offset that risk, to move this forward, because we already have a world-class team ready to go,” he says.

To that end, NanoEar has partnered with Austin-based Capital Factory to help with their raise. “I have reached out to their entire network and am getting a lot of interest, a lot of interest,” says Moses. “But in the end, of course, we need the money.”

It will likely, quite literally, be a sound investment in the future of how we all hear the next generation.

Houston VC funding surged in Q1 2025 to highest level in years, report says

by the numbers

First-quarter funding for Houston-area startups just hit its highest level since 2022, according to the latest PitchBook-NVCA Venture Monitor. But fundraising in subsequent quarters might not be as robust thanks to ongoing economic turmoil, the report warns.

In the first quarter of 2025, Houston-area startups raised $544.2 million in venture capital from investors, PitchBook-NVCA data shows. That compares with $263.5 million in Q1 2024 and $344.5 million in Q1 2023. For the first quarter of 2022, local startups nabbed $745.5 million in venture capital.

The Houston-area total for first-quarter VC funding this year fell well short of the sum for the Austin area (more than $3.3 billion) and Dallas-Fort Worth ($696.8 million), according to PitchBook-NVCA data.

While first-quarter 2025 funding for Houston-area startups got a boost, the number of VC deals declined versus the first quarters of 2024, 2023 and 2022. The PitchBook-NVCA Monitor reported 37 local VC deals in this year’s first quarter, compared with 45 during the same period in 2024, 53 in 2023, and 57 in 2022.

The PitchBook-NVCA report indicates fundraising figures for the Houston area, the Austin area, Dallas-Fort Worth and other markets might shrink in upcoming quarters.

“Should the latest iteration of tariffs stand, we expect significant pressure on fundraising and dealmaking in the near term as investors sit on the sidelines and wait for signs of market stabilization,” the report says.

Due to new trade tariffs and policy shifts, the chances of an upcoming rebound in the VC market have likely faded, says Nizar Tarhuni, executive vice president of research and market intelligence at PitchBook.

“These impacts amplify economic uncertainty and could further disrupt the private markets by complicating investment decisions, supply chains, exit windows, and portfolio strategies,” Tarhuni says. “While this may eventually lead to new domestic investment and create opportunities, the overall environment is facing volatility, hesitation, and structural change.”