Diatom frustules, a biobased and sustainable carrier structure for controlled release in multiple applications – step 1

Controlled release of active substances is used in many applications. This project aims to replace fossil-based and unsustainable delivery vehicles used for controlled release within personal care, wound care and anti-fouling with a sustainable silica material, derived from algae, called Algica. In the project, the encapsulation and release potential for a selection of active ingredients with different physicochemical properties will be technically evaluated. In parallel, the chosen markets will be investigated to increase the market readiness level (MRL) and sustainability readiness level (SRL) for the application. This will help actors along the value chain to respond to the demand for sustainable solutions for controlled release.


Swedish Algae Factory AB, RISE Research Institutes of Sweden, I-tech and Amicoat.

Budget & time plan

The project’s total budget is 986 000 SEK and the project runs during eight months – between June 2023 and February 2024.