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Green chemistry approach for silver nanoparticles synthesis from Halimeda macroloba and their potential medical and environmental applications

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Abstract

This study aims to synthesize silver nanoparticles (AgNPs) using Halimeda macroloba extract and assess their anticancer and photocatalytic properties. Ultraviolet–visible spectrophotometry (UV–visible), Fourier transform infrared (FT-IR) spectroscopy, Transmission electron microscope (TEM), scanning electron microscope-energy-dispersive spectroscopy (SEM–EDX), X-ray photoelectron spectroscopy (XPS), and particle-size distribution (PSD) were used to characterize the synthesized AgNPs. The green-synthesized AgNPs to be spherical in shape with a size of about 50–100 nm. The half-maximal inhibitory concentration (IC50) for AgNPs was determined to be 89.5 g/mL against the human hepatoma cell line (Huh-7). Fluorescent microscopy was used to evaluate the morphological alterations of Huh-7 cells stained with acridine orange/ethidium bromide (AO/EtBr), 2′-7′dichlorofluorescin diacetate (DCFH-DA), and rhodamine 123. Meanwhile, AgNPs exhibited 91.35% photocatalytic activity against methylene blue (MB) after 100 min of exposure to sunlight. Therefore, AgNPs have a strong potential for usage in anticancer activities and photocatalytic organic pollutant destruction.

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Correspondence to K. Anandaraj or P. Kumar.

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Lavanya, G., Anandaraj, K., Gopu, M. et al. Green chemistry approach for silver nanoparticles synthesis from Halimeda macroloba and their potential medical and environmental applications. Appl Nanosci 13, 5865–5875 (2023). https://doi.org/10.1007/s13204-023-02812-7

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  • DOI: https://doi.org/10.1007/s13204-023-02812-7

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