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Tohoku Univ. Technology ：Functional Pearl-like Multilayer Nanomaterials：T25-050

Efficient and Eco-friendly Mass Production via Yeast and Koji Mold Fermentation

This invention presents a new platform for creating organic-CaCO₃ composite materials with pearl-like multilayer nanostructures using a bio-manufacturing process involving yeast and koji mold. 　Building on prior research into the bio-mineralization of Pteria penguin pearls, the inventors have successfully expressed the related proteins and enzymes in yeast to produce highly controlled multilayer CaCO₃ crystals. High-Performance Materials　：By optimizing the expression of matrix proteins and enzymes, the crystal structure and material properties can be precisely controlled. Sustainability　：The fermentation-based production process enables large-scale manufacturing with minimal environmental impact and low cost.