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首页> 外文期刊>Applied Nanoscience >Green synthesis of silver nanoparticles using marine algae Caulerpa racemosa and their antibacterial activity against some human pathogens
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Green synthesis of silver nanoparticles using marine algae Caulerpa racemosa and their antibacterial activity against some human pathogens

机译：海洋藻类Caulerpa racemosa的绿色纳米银的合成及其对某些人类病原体的抗菌活性

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We present the synthesis and antibacterial activity of silver nanoparticles using Caulerpa racemosa , a marine algae. Fresh C. racemosa was collected from the Gulf of Mannar, Southeast coast of India. The seaweed extract was used for the synthesis of AgNO3 at room temperature. UV–visible spectrometry study revealed surface plasmon resonance at 413?nm. The characterization of silver nanoparticle was carried out using Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD) and transmission electron microscope (TEM). FT-IR measurements revealed the possible functional groups responsible for reduction and stabilization of the nanoparticles. X-ray diffraction analysis showed that the particles were crystalline in nature with face-centered cubic geometry.TEM micrograph has shown the formation of silver nanoparticles with the size in the range of 5–25?nm. The synthesized AgNPs have shown the best antibacterial activity against human pathogens such as Staphylococcus aureus and Proteus mirabilis . The above eco-friendly synthesis procedure of AgNPs could be easily scaled up in future for the industrial and therapeutic needs
机译：我们介绍了使用Caulerpa racemosa，一种海藻，银纳米颗粒的合成和抗菌活性。新鲜的C. racemosa是从印度东南海岸的马那那湾收集的。该海藻提取物在室温下用于合成AgNO 3 。紫外可见光谱研究显示在413？nm处的表面等离子体共振。使用傅立叶变换红外光谱（FT-IR），X射线衍射（XRD）和透射电子显微镜（TEM）进行银纳米颗粒的表征。 FT-IR测量显示可能的官能团负责纳米颗粒的还原和稳定。 X射线衍射分析表明，该颗粒本质上是晶体，具有面心立方几何形状。TEM显微照片显示，形成了尺寸在5-25nm之间的银纳米颗粒。合成的AgNPs对人类病原体如金黄色葡萄球菌和变形变形杆菌表现出最佳的抗菌活性。上述AgNPs的环保合成方法将来很容易扩大规模，以满足工业和治疗需求

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