Centre for Nanotechnology, BIST, Bharath University, Selaiyur, Chennai 60073, Tamil Nadu, India.
Colloids Surf B Biointerfaces. 2012 Jun 1;94:114-7. doi: 10.1016/j.colsurfb.2012.01.026. Epub 2012 Jan 30.
A novel biosynthesis route for silver nanoparticles (Ag-NPs) was attempted in this present investigation using aqueous extracts of Trachyspermum ammi and Papaver somniferum. The main constituents in T. ammi are thymol, p-cymene and γ-terpinene, while P. somniferum consists of morphine and codeine. The essential oil in T. ammi was found to be a good reducing agent than the alkaloids present in P. somniferum for the formation of biocompatible Ag-NPs. The effectiveness of both the extracts was investigated by using same dosage of extract in the synthesis of silver nanoparticle. The results showed that for the same dosage of extracts the T. ammi synthesized various size triangular shaped nanoparticles measuring from 87 nm, to a fewer nanoparticles having a size of 998 nm diagonally. P. somniferum resulted in almost spherical shaped particle ranging in size between 3.2 and 7.6 μm diagonally. Future research based on synthesis of size specific nanoparticle based on the optimization of reaction condition would be an interesting area.
本研究尝试了一种使用枯茗和罂粟水提物合成银纳米粒子（Ag-NPs）的新方法。枯茗的主要成分是百里香酚、对伞花烃和γ-萜品烯，而罂粟则含有吗啡和可待因。研究发现，枯茗精油比罂粟中的生物碱更适合作为形成生物相容性 Ag-NPs 的还原剂。通过使用相同剂量的提取物来合成银纳米粒子，研究了两种提取物的效果。结果表明，对于相同剂量的提取物，枯茗合成了各种尺寸的三角形纳米粒子，尺寸从 87nm 到少数 998nm 对角线的纳米粒子。罂粟则形成了几乎呈球形的粒子，尺寸在 3.2 到 7.6μm 对角线之间。基于反应条件的优化，以合成特定尺寸纳米粒子为基础的未来研究将是一个有趣的领域。
