CycloPure, Inc.

CycloPure, Inc. Cyclopure is solving water contamination problems by filtering micropollutants with pioneering adsorption technologies. Dr. Dichtel is the Robert L.

Contamination of water resources by micropollutants is a global health and environmental problem, with greatest risk to infants and unborn children who are most vulnerable to the toxic loads of these chemical compounds. Advanced analytics have shown that trace organic compounds including residuals of pharmaceuticals, pesticides, detergents, and cosmetics, are persistent in water and retain toxic effect at extremely low concentrations. CycloPure was formed to commercialize novel adsorption technologies pioneered in the lab of Will Dichtel at Cornell University. Letsinger Professor of Chemistry
at Northwestern University, and heads the Dichtel Research Group in the University’s Department of Chemistry. Using these technologies, CycloPure is developing a new class of highly adsorbent and sustainable materials for rapid removal of micropollutants from water. The company’s water treatment technology can be incorporated into a variety of filtration products for domestic, industrial, hospital and municipal applications, including purification and conditioning. CycloPure is also developing the technology for use in functionalized fabrics to remove volatile organic compounds (VOCs) and other contaminants from air.

What does DEXSORB have in common with Johnny Cash? They’ve been everywhere, man; they’ve been everywhere. DEX has been t...
09/11/2025

What does DEXSORB have in common with Johnny Cash? They’ve been everywhere, man; they’ve been everywhere. DEX has been to Carlsbad, Anchorage, Rochester, Sacramento, Poolesville, Foley, Detroit, Merrimack, Passaic, Birmingham, Conestoga, Grand Rapids, Horsham, Lansing, Reno, Portageville, Greensboro, Zeeland, Englewood, Newburyport, Lynnfield, Warrington, Berwick, and Wallops. Come to Booth 2569 to learn about our 40 pilot and full-scale installations across this here land.

Ever wondered what desk work looks like at Cyclopure? Juliana preps for three DEXSORB pilot installs in Pennsylvania.   ...
09/10/2025

Ever wondered what desk work looks like at Cyclopure? Juliana preps for three DEXSORB pilot installs in Pennsylvania.

Meet the many faces of Cyclopure at   and learn from our experts about DEXSORB–a reusable and sustainable treatment for ...
09/03/2025

Meet the many faces of Cyclopure at and learn from our experts about DEXSORB–a reusable and sustainable treatment for PFAS, effective in all water environments.
📍Booth 2569, Circular Water Economy Pavilion

Labor Day means the end of summer, as well as the end of another intern season at Cyclopure. We love having curious and ...
09/02/2025

Labor Day means the end of summer, as well as the end of another intern season at Cyclopure. We love having curious and aspiring scientists join us during their summer break. We had four talented college students this summer from UChicago (2), University of Oregon, and Beloit College (WI). They joined our team to work in materials R&D, consumer products assembly, and water test kit data processing. At the end of their internship, we ask our students to present about their activities to Cyclopure employees. Our UChicago interns, Jonah Lovejoy and Audrey Graham, recently shared their research work. Jonah investigated post-synthetic modification of cyclodextrin polymers, and Audrey studied the effects of water matrix components on PFAS removal by cyclodextrin polymers. We are grateful for the fun spirit and contributions of all our interns, and wish them a great year back at school!

Happy Labor Day from Cyclopure! Our office will be closed on Monday, September 1st in observance of Labor Day. Thank you...
08/29/2025

Happy Labor Day from Cyclopure! Our office will be closed on Monday, September 1st in observance of Labor Day. Thank you to all hardworking individuals–at Cyclopure and across the United States.

We made our first WEFTEC appearance last year in New Orleans. This year, we're upgrading from the Discovery Zone to the ...
08/28/2025

We made our first WEFTEC appearance last year in New Orleans. This year, we're upgrading from the Discovery Zone to the Circular Water Economy Pavilion at Chicago's McCormick Place. Over 20,000 water professionals representing 50 industries from 100+ countries–including 4 Cyclopure folks that you can meet at Booth 2569! Curious about sustainable methods for PFAS remedition? We'll be at ready to talk DEXSORB with you!

Get more time to pay when you purchase our DEXSORB®-powered products with Klarna's flexible payment options. Available n...
08/01/2025

Get more time to pay when you purchase our DEXSORB®-powered products with Klarna's flexible payment options. Available now when you checkout at the Cyclopure Store.

"RO, we got your back! DEXSORB will take your rejects. Full-scale reject streams can be 3MGD and higher. PFAS levels can...
07/27/2025

"RO, we got your back! DEXSORB will take your rejects. Full-scale reject streams can be 3MGD and higher. PFAS levels can increase fourfold. Where to put that high concentration reject?

DEXSORB loves to work as the point guard, taking on full treatment responsibility. With resistance to TOC and TDS, DEXSORB is uniquely able to move to the 3 position (basketball jargon); lending a hand to treat reject streams when RO is on point.

Cyclopure engineers Ri Wang and Juliana Huizenga braved 90 degree heat in Alabama last week to install a DEXSORB pilot system to treat reject streams from several RO vendors.”

Following a successful 2024 pilot to test well water for 660 residents of Bailey, CO,  the Colorado Department of Public...
07/14/2025

Following a successful 2024 pilot to test well water for 660 residents of Bailey, CO, the Colorado Department of Public Health & Environment (CDPHE) has expanded its PFAS Testing Assistance Program (TAP) across the state. The program will now offer Coloradans that use private well water free PFAS testing with Cyclopure’s Water Test Kits. Read the full release: https://tinyurl.com/mwkemdx3.

You’ll want to collect these rookie cards. ⚾️ Called up for the   summer league, our rookies hail from Hyde Park's Unive...
07/10/2025

You’ll want to collect these rookie cards. ⚾️ Called up for the summer league, our rookies hail from Hyde Park's University of Chicago and Wisconsin's Beloit College. They are training to hit a PFAStball out of the park water. Each a future environmental All Star.

*Note: Cheese Roll Competition involves chasing a cheese wheel down a hill.

Last month, Cyclopure traveled to Europe to discuss DEXSORB® remediation and how it can be deployed to treat PFAS contam...
07/07/2025

Last month, Cyclopure traveled to Europe to discuss DEXSORB® remediation and how it can be deployed to treat PFAS contamination around the world. Check out our Chief Technology Officer, Gokhan Barin, boarding the plane. We're excited to share the sustainable path we can take to a PFAS-free future with DEXSORB.

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710 Clark Street Suite 350
Evanston, IL
60201

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Our Story

We are a material sciences and technology company whose mission is to make drinking water safe for everyone, everywhere. We are commercializing a new class of selective and powerful adsorbents called High-Affinity Cyclodextrin Polymers (HACPs) that are uniquely capable of removing the toxic micropollutants that contaminate much of our drinking water supply and threaten the health of millions every day. These micropollutants include industrial chemicals, pharmaceuticals, and pesticides that, even at trace concentrations (parts per billion), have been linked to multiple cancers, endocrine disorders, thyroid disease, and immunotoxicity.

Because they exist at trace concentrations, micropollutants easily pass through the municipal water treatment plants which supply tap water to over 85% of the U.S. population. Many also pass through Point-of-Use water systems that millions have installed in their homes. It is the reason that some micropollutants, such as carcinogenic per- and polyfluoralkyl compounds, are now found in the blood serum of 97% of Americans.

Our invention of porous High-Affinity Cyclodextrin Polymer (HACP) adsorbents represent a breakthrough solution for the safe, rapid, and cost-effective removal of toxic micropollutants from water. Our patented technology can be easily incorporated into most water treatment applications including municipal drinking water and wastewater treatment systems, industrial water treatment facilities, and in consumer Point-of-Use water purification products.