Pellicola is a new treatment technology based on the concept of structurally “encapsulating” radioactive cesium rather than simply adsorbing it. While conventional adsorbents hold cesium on their surface, Pellicola incorporates cesium into its internal lattice structure, isolating it from the external environment and stabilizing it in a fixed state. 

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This stabilization is achieved not through chemical bonding but through physical structural encapsulation—similar to vitrification—which prevents the release of cesium even under changes in temperature, humidity, or acidity. After treatment, the material remains stable as a solid, making secondary waste management straightforward and ensuring long-term safety. Pellicola enables the stable immobilization of high‑concentration cesium through a simple and practical process, something conventional technologies struggle to achieve. 

Pellicola’s structure consists of a nano‑ to submicron‑scale porous network that functions as a three‑dimensional “potential well” to trap cesium ions.

 

As a result: 

• It does not rely on ion‑exchange capacity, since it is not a chemical adsorption process. 

• It resists saturation even at high cesium concentrations. 

• It maintains high thermal stability after immobilization. 

• It rapidly captures water‑soluble cesium. 

These characteristics position Pellicola as a fundamentally different category of technology compared with zeolites, ferrocyanides, or glass solidification methods. 

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As nuclear power regains importance in global energy markets, the safe treatment of radioactive cesium is becoming an essential infrastructure requirement. Pellicola meets this growing demand by simultaneously delivering: 

• High‑concentration cesium immobilization 

• Long‑term stability 

• Simplified processing 

• Improved safety of secondary waste 

Pellicola stands as one of the few practical and comprehensive solutions available for this critical challenge.