Debbie Mercer, a Houston entrepreneur, has designed articles of clothing to empower female athletes. Photo courtesy of Zip Hers

It was race day for avid marathon runner, Debbie Mercer. She and her race pack got up early on a brisk winter's day in Chicago, Illinois, piling on warm layers over their compression tights, to run the Chicago Marathon.

Miles into the race, Mercer and her friends made a pit stop at the portable bathrooms. The female runners stood in long lines, awaiting their turns to do their business behind closed doors, while their male friends resorted to quickly and discreetly ducking behind the porta-potties, or finding nearby trees. Precious time ticked by as the women watched their male counterparts continue the race.

"I remember thinking 'I wish there was some way that we could do that too,'" Mercer recalls.

The Houstonian created Zip Hers, an activewear brand that has a full-length zipper lining the bikini area of each pant, to accommodate on-the-go women. The Zip Hers concept and design was intended to level the playing field for women and men when it comes to competitive sports.

"If we're wasting time on a bathroom break and they're not, that holds us back…Maybe it's our little tiny contribution to women's equality. We just really want to help women be the best that they can be," Mercer says.

From full-length pants and tights, to 3-inch compression or loose shorts, Zip Hers has established an array of products suitable active women. However, it was a long and winding road to producing such innovative, high-quality products that could be competitive in such a vast industry of activewear, according to Mercer.

Zip Hers in the making

Photo courtesy of Zip Hers

Mercer kicked off prototype production in 2016. She jumped around to various designers and manufacturers, turning away samples that didn't quite fit her vision for the product. Part of the challenge, Mercer describes, was finding a manufacturer who could manipulate stretch and non-stretch fabric in high-quality ways. Maintaining maximum comfort and a sleek design were challenges when the new variable of a zipper was thrown into the mix.

"It took us a while to get the zipper design perfect so that it would fit well and have a design that was comfortable," Mercer says. "We had to find the right manufacturer to find the skill to make these. We found one in Dallas and one in Houston."

Through trial and error, the Zip Hers design team produced a smooth design that coexists seamlessly with the delicate areas that sit around the zipper. They created a custom-made zipper pull, an invisible, thin disk embossed with the Zip Hers logo.

"Women can easily grab it when they're squatting, and don't have to struggle to find it… you can't even tell that a zipper is there. It's very sleek," Mercer says. "They're all handmade. We have to have special fabric for the panels and…have to have special machines to get the seams just right."

By September 2019, the Zip Hers prototype was finalized and officially launched via the company's online retail site.

Game changers

Photo courtesy of Zip Hers

Zip Hers products, the first of their kind, are sure to change the game for female marathon runners, hikers and any other outdoor activity fanatics, Mercer says. With so many athletic brands available on the internet, Mercer hopes that Zip Hers' innovative approach to active wear, and the unique opportunity they offer to women, will help set the brand apart.

"We really don't see any other products out there like ours…As far as apparel goes, we're the only one," Mercer says.

Since launching last year, Zip Hers has watched their clientele expand with predominantly long distance runners and adventure goers. With the 'athleisure' trend on the rise, they're also seeing more women buying leisurewear for yoga classes, or indoor casual use. Mercer says that she hopes Zip Hers will continue to expand to reach female fishers, hunters, climbers, and even first responders, so that women never have to take off their duty belts.

From various race-day experiences of waiting in long bathroom lines as precious time ticks by, to when nature calls during outdoor activities involving co-ed company, Mercer confronted women's realities by proposing an empowering solution for women.

"Ultimately, it gives women a choice. What's more empowering for women than the power to choose what's best for them?" Mercer says.

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Houston health tech co. lands NIH grant for AI cancer prediction tool

fresh funding

Houston-based CellChorus and Stanford Medicine were recently awarded a Phase I Small Business Innovation Research grant for the company's AI platform to test how certain cancer patients will respond to therapies.

The funding comes from the National Cancer Institute of the National Institutes of Health. According to a filing, the grant totaled just under $400,000.

CellChorus, which spun out from the University of Houston’s Technology Bridge, has developed TIMING (Time-lapse Imaging Microscopy In Nanowell Grids), which analyzes the behavior of thousands of individual immune cells over time and can identify early indicators of treatment success or failure.

The company will work with Stanford's Dr. David Miklos and Dr. Saurabh Dahiya, who have built the Bone Marrow Transplantation and Cell Therapy Biobank. The biobank manages and stores biological samples from patients treated at their clinic and in clinical trials.

"Predicting which patients will achieve durable responses after CAR-T therapy remains one of the most important challenges in the field,” Miklos said in a news release. “We aim to uncover functional cellular signatures that can guide treatment decisions and improve patient outcomes.”

The project will specifically profile cells from patients with relapsed/refractory large B-cell lymphoma (r/rLBCL). According to CellChorus, only about half of r/rLBCL patients who receive CAR-T therapy "achieve a durable, long-term remission." Others do not respond to therapy or experience relapse.

“The sooner we know whether a cancer therapy is working, the better. To maximize patient benefit, we need technology that can provide a robust and early prediction of response to therapy. The technology needs to be scalable, cost-efficient, and capable of rapid turnaround times,” Rebecca Berdeaux, chief scientific officer of CellChorus, added in the release. “We are excited to work with Drs. David Miklos and Saurabh Dahiya and their colleagues on this very important project.”

CellChorus has previously received SBIR grants from federal agencies, including a $2.5 million award in 2024 from its National Center for Advancing Translational Sciences (NCATS) and a $2.3 million SBIR Fast-Track award from the National Institute of General Medical Sciences in 2023.

Houston museum showcases America's founding documents in rare exhibit

Experience History

As the United States prepares to celebrate its 250th birthday, Houstonians have a chance to see rare documents from the founding of the nation. Freedom Plane National Tour: Documents That Forged a Nation, presented by the National Archives Foundation, will be on display at the Houston Museum of Natural Science through Monday, May 25.

The collection includes a rare engraving of the original Declaration of Independence; official Oaths of Allegiance signed by George Washington, Aaron Burr, and Alexander Hamilton; a draft of the Bill of Rights; the Treaty of Paris, the documented that recognized America's independence from Great Britain; and the tally of votes approving the Constitution.

The National Archives specifically chose Houston as one of only eight cities in the country to host the exhibit as a means to help the documents reach a wider audience outside of the main hub of semiquincentennial events in New England and the Washington, D.C. area.

"One of the things we decided when we put the tour together because we wanted to be off the East Coast," said Patrick Madden, CEO of the National Archives Foundation, who was onsite for the exhibit's opening in Houston. "There's a lot of 250th celebration stuff happening in the original 13 colonies. How do we get it to major markets where larger numbers of people can see it? So in the case of Houston, obviously, [is a] major market in this part of the country, but also we've partnered with the museum twice before with National Archives exhibits, so we knew that they would be up to the task of handling the exhibit and the crowds."

The star of the collection is a rare engraving of the original Declaration of Independence. Secretary of State and future president John Quincy Adams commissioned 200 exact replicas of the document from engraver William J. Stone in 1823. Less than 50 now remain. Madden joyfully pointed out that there are errors in this document, a potent reminder that the men who forged a nation made mistakes.

"There's a couple of typos in it where they had to make corrections," said Madden. "So even the founders, you know, they're all human. That resonates because here these people are making this move against the most powerful nation in the world and putting their lives on the line for a country based on ideas."

Other impressive parts of the collection include official Oaths of Allegiance signed by George Washington, Aaron Burr, and Alexander Hamilton, as well as one of the drafts of the Bill of Rights. Many states would not ratify the Constitution until certain rights were included in the document, leading to Washington going on a national tour assuring state leaders enshrining protections was first on the list. The draft copy on display specifically shows the First Amendment in progress.

Houston is the fourth stop on the exhibition's tour, which will take the documents to Denver, Miami, Dearborn, and Seattle through the summer. Freedom Plane is just one part of a larger patriotic celebration at the HMNS, which includes a film series celebrating American science and culture and general Americana decoration throughout the main hall.

Admission to Freedom Plane is free to the public, but separate from general admission to the museum. Space is limited, and passes are available on a first-come, first-serve basis. Non-members should expect long waits or the possibility that the day's passes are sold out. Only museum members can reserve passes for specific times. Flash photography is prohibited due to the fragile nature of the documents.

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This article originally appeared on CultureMap.com.

Houston quantum energy chip startup emerges from stealth with $12M round

seed funding

Houston-based Casimir has emerged from stealth with a $12 million seed round to commercialize its quantum energy chip.

The round was led by Austin-based Scout Ventures. Lavrock Ventures, Cottonwood Technology, Capital Factory, American Deep Tech, and Tim Draper of Draper Associates also participated in the round. The oversubscribed round exceeded the company’s original $8 million target, according to a news release.

Casimir’s semiconductor chips can generate power from quantum vacuum fields without the need for batteries or charging. The company plans to commercialize its first-generation MicroSparc chip by 2028.

The MicroSparc chip measures 5 millimeters by 5 millimeters and is designed to produce 1.5 volts at 25 microamps, comparable to a small rechargeable battery, without degradation and no replacement cycle.

“Casimir represents exactly the kind of breakthrough dual-use technology Scout Ventures was built to back,” Brad Harrison, founder and managing partner at Scout Ventures, said in the release. “This is based on 100 years of science and we’re finally approaching a commercial product … We’re proud to lead this round and support Casimir’s journey from applied science to deployed technology.”

Casimir says it aims to scale its technology across the ”full power spectrum,” including large-scale energy systems that can power homes, commercial infrastructures and electric vehicles.

Casimir's scientific work has been supported by DARPA-funded nanofabrication research and its technology was incubated at the Limitless Space Institute (LSI). LSI is a nonprofit that works to innovate interstellar travel and was founded by Kam Ghaffarian. Technology investor and serial entrepreneur Ghaffarian has been behind companies like X-energy, Intuitive Machines, Axiom Space and Quantum Space.

Harold “Sonny” White, founder and CEO of Casimir, believes the technology can power devices for years without replacements.

“Millions of devices will operate for years without a battery ever needing to be replaced or recharged because we have engineered a customized Casimir cavity into hardware capable of producing persistent electrical power,” White added in the release. “I spent nearly two decades at NASA studying how we power humanity’s future. That work led me to the Casimir effect and the quantum vacuum, where new tools have allowed us to build on a century of scientific knowledge and bring abundant power to the world.”