CycloPure, Inc.

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United States
Evanston, IL
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.

04/01/2026

Not an April Fool’s prank. Just affordable peace of mind.

03/26/2026

03/24/2026

PFAS Beware!

03/23/2026

Two great companies. One Mission.
Remove and Eliminate PFAS.

Fix the water. Fix the world. We developed DEXSORB to eliminate PFAS.

03/22/2026

Water unites us.

03/08/2026

To the women protecting the future of our water: thank you. Happy International Women’s Day from Cyclopure.

02/10/2026

We start with service. Finish with science. The result is PFAS-Free.

12/15/2025

Cyclopure celebrated the holiday season with a mini golf outing in Chicago. ⛳️ The competition was fierce and secret office athletes were uncovered! The best part? Pizza and team bonding. What a great way to celebrate a year of wins. Happy holidays 🎄

12/12/2025

Purefast® Home is traveling all across the U.S. this holiday season: Colorado, Georgia, Michigan, Minnesota, New Mexico, North Carolina, and Virginia. Want to give Santa a glass of PFAS-free water this Christmas?🎅 Order today and get 25% off Cyclopure’s whole home filters for PFAS, all December long.🚰

Shop now: https://cyclopure.com/shop/

Address

710 Clark Street Suite 350
Evanston, IL
60201

Website

http://www.cyclopure.com/

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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.