{"id":"calcium-alginate","rwe":[{"pmid":"41900884","year":"2026","title":"Correction: Ren et al. Preparation of pH-Responsive Tanshinone IIA-Loaded Calcium Alginate Nanoparticles and Their Anticancer Mechanisms. 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Calcium alginate does this by forming a gel-like barrier that covers the wound, protecting it from bacteria and other irritants. 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