Sorbenta’s ‘Forever Chemical’ Filter Wins Innovation Prize, Offering Hope for Clean Water

SEATTLE, WA – March 26, 2026 – In a development that could mark a turning point in the global fight against water contamination, Sorbenta Inc., a startup spun out of the University of North Carolina at Chapel Hill, has been awarded the top prize at the prestigious Lex Generalis Pitch Competition. The honor, presented at the AUTM 2026 Annual Meeting, recognizes the company’s revolutionary technology designed to strip toxic “forever chemicals” from drinking water more effectively and affordably than ever before.

The win shines a spotlight on a potential solution to one of the most pervasive and challenging public health crises of the modern era. Sorbenta was selected from a competitive field of deep-tech ventures for its groundbreaking approach to removing per- and polyfluoroalkyl substances (PFAS), a victory that underscores the critical role of academic research in addressing real-world problems.

“Sorbenta's win represents exactly the kind of innovation we created this competition to celebrate: university-rooted science solving one of the world's most urgent public health challenges,” said Cathryn Paine, CEO of Lex Generalis, the innovation-focused law firm that sponsored the competition.

The Deepening PFAS Crisis

PFAS, a class of over 10,000 synthetic compounds, are nicknamed “forever chemicals” for their extreme persistence in the environment. Their strong carbon-fluorine bonds, which make them ideal for products like non-stick pans, waterproof jackets, and firefighting foam, also prevent them from breaking down naturally. As a result, they have contaminated water supplies, soil, and even rainfall across the globe, bioaccumulating in wildlife and humans.

Mounting scientific evidence links PFAS exposure to a host of serious health problems, including an increased risk of certain cancers, developmental delays in children, immune system suppression, and liver disease. The threat is so significant that the U.S. Environmental Protection Agency (EPA) recently established the first-ever national, legally enforceable drinking water standards for several PFAS compounds.

The EPA has set the maximum contaminant level for two of the most common chemicals, PFOA and PFOS, at just 4 parts per trillion. This concentration is astonishingly small—equivalent to a single drop of water dissolved in five Olympic-sized swimming pools. An estimated 6,500 public water systems across the United States are now under immense pressure to monitor and treat their water to meet these stringent new limits, a task that poses enormous technical and financial challenges.

Traditional water treatment methods are largely ineffective against PFAS. This has forced utilities and industries to turn to more advanced—and expensive—technologies like granular activated carbon (GAC) and existing ion exchange resins, which come with their own significant drawbacks.

A New Generation of Defense

Sorbenta’s innovation directly addresses the shortcomings of current technologies. The company is commercializing a new class of high-capacity, PFAS-selective ion exchange resins that fundamentally change the economics and efficacy of water purification.

Unlike GAC, which can be quickly exhausted and is less effective against newer, short-chain PFAS, Sorbenta’s resins are engineered at the molecular level to be highly selective. They use a novel combination of ionic and fluorous interactions to act like magnets for PFAS, specifically targeting and capturing them while ignoring other harmless minerals and organic matter in the water. This selectivity allows the resin to maintain its high capacity for a much longer time.

The most significant breakthrough, however, may be its regenerability. Current solutions often require the entire filter medium to be removed and incinerated once saturated—a costly and unsustainable process that creates its own disposal challenges. Sorbenta's resins can be regenerated on-site, effectively washing the captured PFAS from the filter media for safe and concentrated disposal. This allows the same resin to be used repeatedly, dramatically lowering the total cost of ownership for a water utility.

“Removing PFAS from water is one of the defining environmental challenges of our time, and current technologies simply weren't designed to meet the scale and precision required,” said Orlando Coronell, Ph.D., Co-Founder and Engineering Lead at Sorbenta. “Our resins were built from the ground up to be selective, regenerable, and cost-effective, giving water utilities and industries a real path to compliance and remediation at scale.”

Head-to-head pilot studies against leading commercial products have validated these claims. Sorbenta’s technology demonstrated five times the capacity for short-chain PFAS and a four-fold longer lifetime with regeneration, making it a powerful new tool for water providers.

From University Lab to Commercial Lifeline

Sorbenta’s journey from a laboratory concept to a prize-winning enterprise is a testament to the power of the university innovation ecosystem. The company was co-founded by two distinguished professors at UNC-Chapel Hill, Frank Leibfarth, Ph.D., and Orlando Coronell, Ph.D., along with 30-year chemical industry executive Robin Weitkamp.

Their work was nurtured by Innovate Carolina, UNC’s campus-wide initiative for entrepreneurship. The team received critical early support from KickStart Venture Services, which provides funding, mentorship, and resources to help university researchers turn their discoveries into viable businesses. Sorbenta received seed funding, grant-writing support, and space in the KickStart Accelerator, an on-campus wet lab that allows IP-based startups to flourish.

This support system was instrumental in helping the team navigate the perilous “valley of death” between academic discovery and commercial product. It enabled them to protect their intellectual property, conduct customer discovery through the I-Corps program, and scale their technology from bench-scale experiments to full pilot studies at six municipal water treatment plants.

Catalysts for Critical Technology

The Lex Generalis Pitch Competition, held at the annual meeting of AUTM—the leading non-profit for technology transfer professionals—is designed to identify and propel companies like Sorbenta. Lex Generalis, backed by the venture capital firm Anzu Partners, represents a new model of legal support tailored for deep-tech innovators, offering strategic IP and corporate counsel on a predictable, flat-fee basis.

For a startup like Sorbenta, winning the competition provides more than just validation. It offers a powerful platform for visibility among investors, strategic partners, and future customers in the tech transfer community. It also signals that the company’s technology is not only scientifically rigorous but also commercially viable and backed by an exceptional team.

With production scaled to over 50 kilograms and active field trials underway, Sorbenta is now focused on bringing its solution to the municipalities and industrial sites that need it most. As regulatory deadlines loom and the scope of the forever chemical crisis continues to expand, the transition of this promising technology from the lab to the front lines of water purification represents a critical step forward in the quest for safe, clean water for all.