Seaweed-based alginate/hydroxyapatite composite for the effective removal of bacteria, cyanobacteria, algae, and crystal violet from water.

ABSTRACT: A novel cost-effective and multifunctional nanocomposite was developed based on sustainable macroalgae biomass. The brown seaweed Sargassum latifolium was utilized for alginate extraction and the calcareous red seaweed Tricleocarpa fragilis was utilized as CaCO₃ source for nanohydroxyapatite synthesis. The developed Zn²⁺-crosslinked alginate/nanohydroxyapatite (ZA/nHA) beads were characterized by FT-IR, XRD, and TEM. The antimicrobial potential of ZA/nHA to disinfect synthetic Escherichia coli-contaminated water was evaluated at different bacterial load and composite concentrations. The developed ZA/nHA effectively inactivated bacteria at initial concentration ≤ 10⁵ CFU mL^-1 and 0.5-1% (w/v) of ZA/nHA within 300-360 min. The kinetics of bacterial

SUBMITTER: Gomaa M 

PROVIDER: S-EPMC10644496 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature