ArticleChemistryOpen2026
Green and Stabilized Nanogold in Eucheuma Seaweed for Reactive Azo Catalysis.
Article in ChemistryOpen, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Gold nanoparticles (AuNPs) possess unique properties, making them highly versatile for various applications, though their large-scale synthesis remains challenging. This article reports the biosynthesis of AuNPs using processed Eucheuma seaweed (PES). A sharp absorption band verified the successful formation of AuNPs at 542 nm in the UV-visible spectrum. Electron microscopy showed quasi-spherical particles with an average diameter of 11.41 ± 4.88 nm and high crystallinity (d-spacing = 0.230 nm). PES biomolecules stabilized the AuNPs, as reflected by a zeta potential of -22.1 mV and the presence of carbon, sodium, oxygen, and nitrogen in energy diffraction and elemental mapping analyses. The AuNPs demonstrated 94.3% catalytic reduction of reactive orange 1 dye, with a high regression coefficient (R
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