Marine Bioceramic Generation for Bone Tissue Regeneration: Sea Urchin (Echinometra mathaei) Exoskeleton-Derived Calcium Carbonate as a Precursor for Hydroxyapatite Synthesis, Incorporated into Chitosan Based-Hydrogel and

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

• Level A · Stronger Clinical Evidence
• Level B · Emerging clinical evidence with positive signals
• Level C · Early human research exploring benefits
• Level D · Scientific groundwork from lab and animal studies
• Emerging · Emerging topic under active research

Abstract (original English)

The marine environment is a rich and diverse habitat, home to numerous organisms that serve as valuable sources of biological and pharmacological compounds. The skeletal structures of many marine invertebrates represent precursors for calcium phosphate (CaP) bioceramics. This study demonstrates hydroxyapatite (HA) synthesis from sea urchin (Echinometra mathaei) shell and spine, a sustainable CaCO₃ source. FTIR and XRD analysis revealed the presence of characteristic peaks associated with hydroxyapatite. SEM-EDS observations indicated that synthesis parameters determined the calcium to phosphorus ratio (Ca/P) and morphology of the derived calcium phosphate bioceramic. HA-based hydrogels play an important role in bone tissue engineering due to their high biocompatibility. The hydrogels were formulated as follows: a control group of oxidized carboxymethyl chitosan/cellulose (O-CMC/CEL), a composite group with commercial hydroxyapatite (O-CMC/CEL/HA), and two experimental composite groups containing HA synthesized from sea urchin spine (O-CMC/CEL/HA (spine-derived)) and shell (O-CMC/CEL/HA (shell-derived)). Four groups of hydrogels melded on 3D print frames to evaluate the osteogenic differentiation of human adipose-derived mesenchymal stem cells (ADSCs). SEM, FTIR, water contact angle, swelling rate, and live/dead assay results indicated that the porous composite hydrogels possess

Evidence level

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

Browse all related research

Filter the research library by this study's title keywords, author, or publication year.