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Microwave assisted biosynthesis of Borassus flabellifer fruit mediated silver and gold nanoparticles for dye reduction, antibacterial and anticancer activity
Journal of Environmental Chemical Engineering ( IF 7.7 ) Pub Date : 2021-09-21 , DOI: 10.1016/j.jece.2021.106411
S. Anbu Anjugam Vandarkuzhali 1, 2 , G. Karthikeyan 3 , M.P. Pachamuthu 4
Affiliation  

Biosynthesis of silver nanoparticles (AgNPs) and gold nanoparticles (AuNPs) employing Borassus flabellifer fruit (BFF) extract as reducing and stabilizing agent under microwave irradiation is demonstrated in the present work for the reduction of organic dyes and biological applications. Formation, structure, size, morphology and binding state of the as-synthesized nanoparticles were characterized by UV–vis spectrophotometer, X-ray diffraction (XRD), Fourier transform infrared (FTIR), Dynamic light scattering (DLS), Transmission electron microscopy (TEM) techniques, and X-ray photoelectron spectroscopy (XPS). The presence of surface plasmon resonance (SPR) absorption band at 410 nm and 534 nm in UV-Visible spectra revealed the formation of AgNPs and AuNPs which was supported by XRD results. The average particle sizes of AgNPs and AuNPs with spherical morphology were in the range of ~ 7–9 nm and ~ 5–7 nm, respectively. The reduction of methylene blue (MB) and congo red (CR) dye was observed at faster rate over AgNPs and AuNPs with high selectivity and sensitivity. The biosynthesized NPs demonstrated potential antibacterial and anticancer properties on tested microorganisms and Human breast cancer (MCF-7) cells. The mechanism of the reduction of MB and CR dyes and biological activity over biosynthesized NPs are discussed. The facile and environmentally benign NPs could be a new alternative catalysts for toxic dye reduction and the proposed biological applications.



中文翻译:

Borassus flabellifer 果实介导的银和金纳米粒子的微波辅助生物合成用于染料还原、抗菌和抗癌活性

银纳米粒子 (AgNPs) 和金纳米粒子 (AuNPs) 在微波辐照下使用 Borassus flabellifer 果实 (BFF) 提取物作为还原和稳定剂的生物合成在目前用于还原有机染料和生物应用的工作中得到了证明。通过紫外可见分光光度计、X 射线衍射 (XRD)、傅里叶变换红外 (FTIR)、动态光散射 (DLS)、透射电子显微镜 ( TEM) 技术和 X 射线光电子能谱 (XPS)。紫外-可见光谱中 410 nm 和 534 nm 处的表面等离子体共振 (SPR) 吸收带的存在揭示了 AgNPs 和 AuNPs 的形成,这得到了 XRD 结果的支持。具有球形形态的 AgNPs 和 AuNPs 的平均粒径分别在 ~ 7-9 nm 和 ~ 5-7 nm 的范围内。与 AgNPs 和 AuNPs 相比,亚甲蓝 (MB) 和刚果红 (CR) 染料的还原速度更快,具有高选择性和灵敏度。生物合成的 NPs 在测试的微生物和人类乳腺癌 (MCF-7) 细胞上显示出潜在的抗菌和抗癌特性。讨论了 MB 和 CR 染料的还原机制以及生物合成 NPs 的生物活性。简便且对环境无害的 NPs 可能是一种新的替代催化剂,用于减少有毒染料和拟议的生物应用。与 AgNPs 和 AuNPs 相比,亚甲蓝 (MB) 和刚果红 (CR) 染料的还原速度更快,具有高选择性和灵敏度。生物合成的 NPs 在测试的微生物和人类乳腺癌 (MCF-7) 细胞上显示出潜在的抗菌和抗癌特性。讨论了 MB 和 CR 染料的还原机制以及生物合成 NPs 的生物活性。这种简便且对环境无害的 NPs 可能是一种新的替代催化剂,可用于减少有毒染料和拟议的生物应用。与 AgNPs 和 AuNPs 相比,亚甲蓝 (MB) 和刚果红 (CR) 染料的还原速度更快,具有高选择性和灵敏度。生物合成的 NPs 在测试的微生物和人类乳腺癌 (MCF-7) 细胞上显示出潜在的抗菌和抗癌特性。讨论了 MB 和 CR 染料的还原机制以及生物合成 NPs 的生物活性。简便且对环境无害的 NPs 可能是一种新的替代催化剂,用于减少有毒染料和拟议的生物应用。

更新日期:2021-09-23
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