Research Department of Chemistry, VHNSN College, Virudhunagar 626 001, India.
Spectrochim Acta A Mol Biomol Spectrosc. 2012 Oct;96:1031-7. doi: 10.1016/j.saa.2012.08.011. Epub 2012 Aug 17.
Present study reports a green chemistry approach for the biological synthesis of silver nanoparticles using the aqueous leaf extract of Pithecellobium dulce, which acts as a reducing and capping agent. It is observed that use of P. dulce leaf extract makes a fast, environmentally benign and convenient method for the synthesis of silver nanoparticles and can reduce silver ions into silver nanoparticles. Silver nanoparticles so prepared have been characterized by UV-Vis, FT-IR, X-ray diffraction, atomic force microscopy and scanning electron microscope studies. Furthermore, these nanoparticles show effective larvicidal activity against Culex quinquefasciatus (LC(50)=21.56 mg/L and r(2)=0.995) due to high surface to volume ratio.
本研究报告了一种绿色化学方法，使用甜叶悬钩子的水提液作为还原剂和稳定剂，生物合成银纳米粒子。研究发现，使用甜叶悬钩子叶提取物可以快速、环保且方便地合成银纳米粒子，并将银离子还原成银纳米粒子。通过紫外-可见光谱、傅里叶变换红外光谱、X 射线衍射、原子力显微镜和扫描电子显微镜研究对所制备的银纳米粒子进行了表征。此外，由于高的比表面积，这些纳米粒子对库蚊（LC(50)=21.56mg/L 和 r(2)=0.995）具有有效的杀幼虫活性。
