Rathu Gamathige D. PWeerasiri K. CPathirana H. M. K. K2025-09-192025-09-192025-05https://dr.ichemc.ac.lk/handle/123456789/448Page 64 Abstract No: 2025_324Fish scales comprise of collagen and hydroxyapatite (HAp). The latter of which holds potential for biomedical applications. In Sri Lanka these scales are discarded into the environment as waste.enFish scalesnano-crystallinehydroxyapatitedeproteinizationbiocompatibilityArticle