Synthesis and Self-Assembly of One-Dimensional Sub-10 nm Ag Nanoparticles with Cyclodextrin
Synthesis and Self-Assembly of One-Dimensional Sub-10 nm Ag Nanoparticles with Cyclodextrin
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DOI：
10.1021/jp710553c
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发表时间：
2008-02
影响因子：
3.7
通讯作者：
Choon Hwee Bernard Ng;J. Yang;W. Y. Fan
中科院分区：
文献类型：
--
作者：
Choon Hwee Bernard Ng;J. Yang;W. Y. Fan
报道了一种在水溶液中制备亚10 nm银纳米粒子的简便有效的方法。纳米颗粒的稳定性是通过与α-CD的非极性主面的疏水相互作用实现的。此外，暴露的二级-OH基团之间的氢键相互作用促进了相邻CD的穿线，导致Ag纳米颗粒自组装成1-D“珍珠项链”阵列。这种金属纳米颗粒的制备揭示了以2-和3-D图案组装纳米颗粒的可能性。
A facile and effective method to produce sub-10 nm Ag nanoparticles in a water solution is reported. Stabilization of the nanoparticles was achieved by hydrophobic interactions with the apolar primary faces of α-CD. In addition, hydrogen-bonding interactions between the exposed secondary -OH groups facilitated the threading of neighboring CDs, leading to the self-assembly of the Ag nanoparticles into 1-D “pearl necklace” arrays. The preparation of such metal nanoparticles unravels possibilities for the assembly of nanoparticles in 2- and 3-D patterns.