It takes a highly selective adsorbent to rapidly attract and remove contaminants that are present in concentrations of one part per billion (1 ppb) or less.
1 ppb is one billionth of one gram per liter, which is the equivalent of one teaspoon of a pollutant in an Olympic sized swimming pool. Due to the sub-nanometer size of the cyclodextrin cups, our polymer materials are ideally suited to remove micropollutants in part per billion concentrations.

Exacting Adsorption
Micro Pockets to Target Micro Pollutants

Removal interactions take place within the .78 nanometer cyclodextrin cups, which form optimally sized inclusion complexes to host the attraction and capture of micropollutants.

The networked cyclodextrin cups form a molecular net into which pollutants are drawn in and stripped from water. It is this molecular level of operation that give our adsorbents their exacting nature and breakthrough effectiveness.

Networked Adsorption
Our polymer materials present a limitless network of adsorbent cups to remove contaminants. It takes approximately 120,000 of vertically stacked cyclodextrin cups to equal the thickness of a sheet of paper. A sugar cube can hold 10 billion2 (or 1020) cyclodextrin cups, which is roughly equal to the total grains of sand on the world’s beaches.

Selective Adsorption
The same nanometer scale cup design that provides ideally suited inclusion complexes for micropollutants, creates a size-exclusion mechanism that limits fouling by larger inert molecules.

Reusable Adsorption
Our cyclodextrin polymers feature easy regeneration by simple washing techniques, offering the ability for repeated use and desirable life-cycle costs.
High Surface Area
Our HACP polymers derive their effectiveness by linking cup-shaped cyclodextrin adsorbents into porous, high surface area structures.

Adsorption by Encapsulation
The pores form pathways to high-affinity cyclodextrin cups that provide for the rapid uptake and capture of contaminants.

Designing Selectivity

By varying the crosslinking compounds, our HACP adsorbents can be formulated to further enhance attraction to targeted contaminants.
β Cyclodextrin forming a guest-host complex with perfluorooctanesulfonic acid (PFOS)
HACP Production Process
High-Affinity Cyclodextrin Polymers
(HACPs).

A Breakthrough
in Adsorbent Technology.
CycloPure is Advancing the Science of Safe Water

For Everyone.

Everywhere.
β Cyclodextrin
Monomer
Crosslinker
Porous High-Affinity
Cyclodextrin Polymer
(HACP) Network
Proprietary Polymerization Process
CD-MP
Effective against hundreds industrial compounds, pharmaceuticals, pesticides, and other organic micropollutants. CD-MP is available in a variety of powder and granular particle sizes to meet filtration and water flow requirement of virtually any water treatment application.  Read More.
β Cyclodextrin
TFN
CycloPure CD-MP
CD-PFAS
Fluourine selective HACP for the rapid removal of PFOA (perfluorooctanoic acid) and PFOS (perfluorooctane sulfonate). Available in multiple powder and granular particle sizes.

Superior removal compared to activated carbon demonstrated in simulated groundwater, AFFF solution, and actual groundwater collected from contamination sites.

Up to ten times the affinity to PFOA/PFAS compared with activated carbon allowing lower dosages to achieve non-detect or advisory level concentrations.
Read More.
β Cyclodextrin
CycloPure CD-PFAS
Two adsorbent formulations optimized for contaminant removal across numerous water treatment applications.
β Cyclodextrin
Cyclodextrins are a family of sugars that are renewable and readily made from cornstarch. Frequently used as a food additive, cyclodextrins have been classified as Generally Recognized As Safe (GRAS) by the U.S. Food & Drug Administration. Within their three dimensional cup-shaped structure, cyclodextrins feature 0.78 nm hydrophobic pockets which form host-guest complexes to adsorb contaminants and other compounds. In native form, cyclodextrins are water soluble and not suitable for use in water treatment.
CycloPure
Science
Innovations to protect the health of people and the environment.
Research & Technology Center
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