Solving the PFAS crisis at scale—without creating another environmental liability down the line.

We envision a future where all people have access to contamination-free water. Achieving that vision requires a fundamental departure from typical modern remediation methods. We refuse to exchange chemical water pollution for petroleum dependence or microplastic accumulation. Sequestro engineers advanced, bio-renewable adsorbents that deliver absolute environmental protection without compromise.

OUR FOUNDATION

Doing the right thing, the right way.

We believe in combining rigorous material science with genuine human responsibility. These five core principles guide our company culture and our environmental

People

Have a positive impact on people—because human connection is everything.

Integrity

Do the right thing, the right way—no shortcuts.

Sustainability

Strive to leave the planet a better place than we found it—we owe it to our children.

Philanthropy

Invest in the next generation through active mentorship and continuous R&D.

Products

Enable modern conveniences by designing premium-quality products that reliably solve real problems.

THE TRAJECTORY

From fundamental chemistry to industrial scale-up.

ArborSORB™ is not a speculative startup concept. It is a highly validated technology built upon years of rigorous molecular innovation and institutional execution.

2021–2022

The Molecular Breakthrough

Foundational macromolecular research at the University of Michigan discovers that cellulose fibers functionalized with specific cationic amines could selectively bind anionic PFAS. The technology is rigorously peer-reviewed and published in ACS ES&T Water, demonstrating greater than 80–90% removal efficiencies of PFOA and PFOS within a 30-second contact time.

July 2023

Corporate Spinout

Sequestro, Inc. is officially incorporated and established in Ann Arbor, Michigan, securing the exclusive global intellectual property rights to commercialize the platform out of the University of Michigan research ecosystem.

Late 2024–2025

Market Validation & Optimization

Sequestro secures a $50K National Science Foundation (NSF) I-Corps grant, executing 150+ structured customer interviews with municipal operators and environmental firms to validate market fit. Simultaneously, a $40K U-M ADVANCE Proof-of-Concept grant, administered through Michigan State, enables the successful transition of the core synthetic chemistry from processed pulp to raw, upcycled forestry sawdust.

2026 (Present)

Infrastructure Scale-Up

Sequestro has secured $692,500 in pre-seed venture investment, with all participating investment firms and angel investors based in Michigan, reflecting strong support from the state’s innovation and entrepreneurial ecosystem. The company also secured a $250,000 NextCycle Michigan Circular Economy grant to support a pilot engagement in Michigan.

Operations have moved into an advanced laboratory space at 600 S. Wagner Road, where Sequestro is commissioning a 20L scale-up reactor facility to generate uniform media batches for independent column testing ahead of field pilot execution.

LEADERSHIP

Driven by domain expertise.

Sequestro is built by pioneering environmental chemists and macromolecular engineers explicitly equipped to translate laboratory breakthroughs into industrial-scale solutions.

Sequestro Team
Juergen Koller
Chief Technology Officer | Founder

Juergen Koller

Chief Technology Officer | Founder

Juergen holds a Ph.D. in Chemistry from the University of Florida, with postdoctoral research at UC Berkeley focused on synthetic inorganic chemistry and advanced materials. He spent over 15 years in industrial R&D and manufacturing leadership, holding technical and operations roles at Momentive Performance Materials, the U.S. Naval Air Systems Command (NAVAIR), and Wacker Chemical Corporation, where he led process chemistry across 80+ reactor systems and later managed full production and supply chain operations. In November 2024, Juergen transitioned full-time to Sequestro to lead the company's growth and development of sustainable PFAS capture technologies.

Kevin Payne
Chief Technology Officer

Kevin Payne

Chief Technology Officer

Kevin holds a Ph.D. and B.S. from Queen's University in Kingston, Ontario, with his doctoral research focused on Controlled Radical Polymerization. He spent over a decade in industrial R&D, first at BASF Corporation developing polymer synthesis for printing, packaging, adhesives, coatings, and construction, then as a Senior Research Engineer and Lab Manager specializing in high-temperature polymerization chemistry. He went on to join Wacker Chemical Corporation as a Technical Manager, developing silicone solutions for automotive and electronics applications. Outside the lab, Kevin is happiest playing volleyball or getting outdoors, especially when it's cold and snowy.

John Nanos
Process Chemist

John Nanos

Process Chemist

John is an R&D Chemist with over 25 years of technical and commercial experience in organic polymer chemistry. He earned his Ph.D. from the University of Michigan in 2005 and served as an Adjunct Professor in the university's Chemistry Department. In 2004, he founded Nanosystems, a formulator and supplier of specialty polyurethane foams and systems, and in 2019 co-founded SteepHill Labs, an ISO 17025 analytical testing laboratory. John also consults as a material scientist for multi-national Fortune 100 chemical suppliers.

Advisors
Anne McNeil
Technical Advisor | Co-Founder

Anne McNeil

Technical Advisor | Co-Founder

Prof. McNeil is the Carol A. Fierke Collegiate Professor of Chemistry and Arthur F. Thurnau Professor at the University of Michigan, spanning Chemistry, Macromolecular Science and Engineering, and the Program in the Environment. Her research covers organic and polymer chemistry, with active work in chemical recycling, microplastics detection, PFAS capture, and materials for renewable energy storage. Prof. McNeil is the original inventor of Sequestro's PFAS capture technologies and Co-Founder of the company, holding the granted patent on the core functionalized wood pulp technology.

MJ Cartwright
Business Advisor

MJ Cartwright

Business Advisor

MJ Cartwright is an experienced professional, affording access to business advice and guidance for successful technology commercialization and early-stage growth. Previously, she served as the CEO of Court Innovations where she built and led the team taking the Matterhorn online dispute resolution (ODR) platform from an academic idea in 2014 to a software as a service (SaaS) platform into over 150 locations across the U.S. in 22 states. Additionally, MJ contributes a wealth of connections to the regional Venture Capital and entrepreneurial ecosystem.

For environmental engineers

Evaluate ArborSORB™ against your target matrix. Coordinate a Rapid Small-Scale Column Test (RSSCT) with our engineering team to assess adsorption kinetics firsthand.

For venture capitalists

Fuel the future of absolute water remediation. Sequestro is finalizing its pre-seed funding round to accelerate field pilot execution. Review our investment documentation.