The green biogenic synthesis of nanoparticles using natural sources is always eco-friendly and attractive. The current study has focused on the production of ZrO₂ nanoparticles using the aqueous leaf extract of Laurus nobilis (bay leaf). The structural and morphological properties of ZrO₂ nanoparticles were investigated through UV–visible absorption spectrophotometer, Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM) and dynamic light scattering (DLS). The characterization techniques confirmed the formation of ZrO₂ nanoparticles with the diameter from 20 to 100 nm. FTIR spectra also demonstrated the formation of ZrO₂ in the crystalline phase. The narrow and edged peaks obtained from XRD symbolized a notable increase in the crystalline index of the obtained zirconium nanoparticles. The SEM micrographs revealed the morphology as spherical shaped. Various concentrations of the obtained zirconium nanoparticles were tested to check their inhibitory action against certain microorganisms such as Gram-positive bacteria, Gram-negative bacteria and a fungus. The inhibitory actions against the tested microorganisms were directly proportional to the concentration of the obtained zirconium nanoparticles. Consequently, the dispersion properties of ZrO₂ nanoparticles in the aqueous solution increased considerably, which might have contributed to the antimicrobial activity. Hence, the synthesized ZrO₂ nanoparticles of L. nobilis can serve as an antimicrobial agent, which may play a vital role in medical industry.

使用天然来源的纳米颗粒的绿色生物合成始终是环保和有吸引力的。目前的研究主要集中在生产的ZrO _2层使用的水性叶提取物的纳米颗粒月桂（月桂叶）。通过紫外-可见吸收分光光度计、傅里叶变换红外（FTIR）光谱、X射线衍射（XRD）、扫描电子显微镜（SEM）和动态光散射（DLS）研究了ZrO ₂纳米颗粒的结构和形态特性。表征技术证实形成了直径为 20 至 100 nm的 ZrO ₂纳米颗粒。FTIR 光谱也证明了 ZrO ₂的形成在结晶阶段。从 XRD 获得的窄边峰象征着所获得的锆纳米粒子的结晶指数显着增加。SEM显微照片显示形态为球形。测试各种浓度的获得的锆纳米粒子以检查它们对某些微生物如革兰氏阳性菌、革兰氏阴性菌和真菌的抑制作用。对被测微生物的抑制作用与所得锆纳米粒子的浓度成正比。因此，ZrO ₂纳米颗粒在水溶液中的分散性能显着增加，这可能有助于抗菌活性。因此，合成的 ZrO ₂L 的纳米粒子。nobilis可作为抗菌剂，在医疗行业中可能发挥重要作用。