Cho Eun Jin, Kang Jeong Ku, Han Won Seok, Jung Jong Hwa
Department of Materials Science and Engineering, KAIST, Daejeon 305-701, South Korea.
Langmuir. 2008 May 20;24(10):5229-32. doi: 10.1021/la800208w. Epub 2008 Apr 12.
We synthesized a tetrameric amphiphilic molecule ( 1) based on a calix[4]arene building block that self-assembled into different tunable and stable aggregation structures at different pH values in aqueous solution. The amphiphilic calix[4]arene molecule ( 1) formed a spherical structure at pH 3. However, 1 formed a hollow necklacelike structure of 500 nm diameter at pH 7. These results indicate that the self-assembled morphologies of 1 are strongly dependent on pH values. In addition, a 3D dendritic silver nanostructure was obtained by the self-assembly of 1 at pH 7.
我们基于杯[4]芳烃构建单元合成了一种四聚体两亲分子（1），该分子在水溶液中于不同pH值下自组装成不同的可调节且稳定的聚集结构。两亲性杯[4]芳烃分子（1）在pH 3时形成球形结构。然而，在pH 7时，1形成了直径为500 nm的中空项链状结构。这些结果表明，1的自组装形态强烈依赖于pH值。此外，通过在pH 7时1的自组装获得了一种三维树枝状银纳米结构。
