Biosynthesis of silver and gold nanoparticles by novel sundried Cinnamomum camphora leaf
Biosynthesis of silver and gold nanoparticles by novel sundried Cinnamomum camphora leaf
复制标题
新型晒干香樟叶生物合成纳米银和纳米金
DOI：
10.1088/0957-4484/18/10/105104
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发表时间：
2007-03-14
期刊：
影响因子：
3.5
通讯作者：
Chen, Cuixue
中科院分区：
文献类型：
--
作者：
Huang, Jiale;Li, Qingbiao;Chen, Cuixue
纳米晶体的合成是现代纳米技术研究的热点。利用植物提取物生物合成纳米颗粒是目前研究的热点。不仅可以制备出尺寸在55 ~ 80 nm之间的纳米银颗粒，而且在室温下，将香樟叶的新型干燥生物质与水相银或金前驱体反应，可以很容易地制备出三角形或球形的纳米金颗粒。金纳米粒子和银纳米粒子在形状控制上的显著差异可归因于保护性生物分子和还原性生物分子的比较优势。多元醇组分和水溶性杂环组分分别对银离子和氯金酸盐离子的还原和纳米粒子的稳定起主要作用。本研究的干燥叶片非常适合用于纳米颗粒的简单合成。
The synthesis of nanocrystals is in the limelight in modern nanotechnology. Biosynthesis of nanoparticles by plant extracts is currently under exploitation. Not only could silver nanoparticles ranging from 55 to 80 nm in size be fabricated, but also triangular or spherical shaped gold nanoparticles could be easily modulated by reacting the novel sundried biomass of Cinnamomum camphora leaf with aqueous silver or gold precursors at ambient temperature. The marked difference of shape control between gold and silver nanoparticles was attributed to the comparative advantage of protective biomolecules and reductive biomolecules. The polyol components and the water-soluble heterocyclic components were mainly responsible for the reduction of silver ions or chloroaurate ions and the stabilization of the nanoparticles, respectively. The sundried leaf in this work was very suitable for simple synthesis of nanoparticles.