In the current investigation, a comparative study between stems of two halophytic species; Atriplex halimus and Chenopodium amperosidies in a single step, efficient and environmentally safe phytosynthesis of gold nanoparticles (AuNPs) is reported. The green synthesized AuNPs were characterized using various techniques. Results showed the formation of violet-colored, mostly spherical-shaped AuNPs with a particle size of 2–10 nm for A. halimus-AuNPs and up to 40 nm for C. amperosidies-AuNPs. The plasmon peak of UV–Visible spectroscopy appeared at 535 nm for both AuNPs samples, confirming the successful phytosynthesis of AuNPs. The cytotoxicity investigation using MTT assay denoted a comparatively higher efficiency of A. halimus-AuNPs than C. amperosidies-AuNPs in inhibiting the proliferation of human breast cancer cells (MCF7 cell line). The recorded cell viability was 35.64 μg/mL for A. halimus-AuNPs and 38.46 μg/mL for C. amperosidies-AuNPs. The antioxidant efficiency of A. halimus-AuNPs was one-fold higher than that of C. amperosidies-AuNPs. Likewise, the catalytic degradation efficiency of methylene blue by A. halimus-AuNPs was noticeably higher than that of the other sample. Thus, reflects the relatively higher efficacy of A. halimus’ stem aqueous extract in the phytosynthesis of AuNPs compared to those of C. amperosidies.

在本次调查中，对两种盐生植物茎进行了比较研究；据报道，Atriplex halimus和Chenopodium amposides在一步中，高效且环境安全地植物合成金纳米粒子 (AuNPs)。使用各种技术表征绿色合成的 AuNP。结果表明紫色，主要是球状的AuNP的形成具有2-10纳米的粒径A. halimus-的AuNP和最多为40纳米C. amperosidies-金纳米粒子。两个 AuNPs 样品的紫外-可见光谱的等离子体峰出现在 535 nm，证实了 AuNPs 的成功植物合成。使用 MTT 法进行的细胞毒性研究表明其具有相对较高的效率A. halimus- AuNPs 比C. amposidies- AuNPs 在抑制人乳腺癌细胞（MCF7 细胞系）的增殖方面。所记录的细胞活力35.64微克/毫升为A. halimus-的AuNP和38.46微克/毫升为C. amperosidies-金纳米粒子。A. halimus -AuNPs的抗氧化效率比C. amposidies- AuNPs高一倍。同样，A. halimus- AuNPs对亚甲蓝的催化降解效率明显高于其他样品。因此，反映了与C. amposidies相比，A. halimus的茎水提取物在 AuNPs 的植物合成中具有相对更高的功效。