ArticleScientific reports2026
Sargassum latifolium-mediated Se/CuO/MgO/ZnO nanocomposite enhances salt tolerance in Phaseolus vulgaris and exhibits antibacterial and antioxidant activities.
Article in Scientific reports, 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
Macroalgae represents a powerful, renewable bioplatform for generating high-performance nanomaterials that bridge sustainability with advanced biotechnological applications. However, crop production and multi-drug resistance microbes are considered the main challenge worldwide. Also, the incorporation of macroalgae metabolites to generate multimetallic nanocomposite, as a new active compound, remains unexplored. In this work, the brown macroalga Sargassum latifolium was exploited as a robust biofactory for the green fabrication of multifunctional active tetrametallic Se/CuO/MgO/ZnO (TSCMZ) nanocomposite. The biosynthesized TSCMZ were characterized by FT-IR which explains the role of different algal-active metabolites in biofabrication process. Also, TEM, SAED, and EDX confirm the spherical shape with average sizes of 24 nm and the presence of metallic elements as main nanocomposite component. Polycrystalline architecture of synthesized nanocomposite was confirmed by XRD analysis. Under field conditions, Phaseolus vulgaris L. exposed to 100 mM NaCl experienced drastic impairments in growth, metabolism, and yield stability. Remarkably, foliar application of TSCMZ (50-200 ppm), especially at 200 ppm, significantly mitigate salt stress, elevating metabolic performance, and recovering key yield attributes. This enhancement was accompanied by substantial increases in chlorophylls (a, b, and a + b), carotenoids, free proline, carbohydrate and protein biosynthesis, indicating strengthened osmotic adjustment and redox homeostasis. Beyond its agronomic impact, TSCMZ displayed striking antibacterial potency, with low MIC values (12.5-25 µg mL
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