Metal-Ion Coordination Self-Assembled Green Synthesized Gold Nanoparticles for 4‑Nitrophenol Reduction and Food Colorants Degradation.

ABSTRACT: The field of responsive nanometric systems is rapidly expanding, offering significant potential for environmental and catalytic applications. In this study, we report the green synthesis of metal ion-directed self-assembled gold nanoparticles (AuNPs) mediated by Pithecellobium dulce (P. dulce) leaf extracts. This biosynthetic approach facilitates dynamic nanoparticle aggregation through metal-ion coordination, enhancing surface chemistry interactions and core nanoparticle organization. The precise molecular mechanism governing the self-assembly process remains to be fully elucidated. Nevertheless, these nanostructures (∼12 nm, face-centered cubic) exhibit remarkable catalytic activity, achieving near-complete reduction of 4-nitrophenol within 25 min and efficient degradation

SUBMITTER: Lara Zavala JA 

PROVIDER: S-EPMC12509122 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature