Facile synthesis of hierarchical conducting polymer nanotubes derived from nanofibers and their application for controlled drug release.
Facile synthesis of hierarchical conducting polymer nanotubes derived from nanofibers and their application for controlled drug release.
复制标题
DOI：
10.1002/marc.201000780
复制
发表时间：
2011-05
影响因子：
4.6
通讯作者：
Jie Han;Lunan Wang;R. Guo
中科院分区：
文献类型：
--
作者：
Jie Han;Lunan Wang;R. Guo
无机纳米/微米材料的中空化可以通过公知的奥斯特瓦尔德熟化（Ostwald ripening）和柯肯达尔（Kirkendall）方法来实现。然而，没有牺牲模板的有机聚合物中空化很少见到。在此，我们首次证明了导电聚合物纳米纤维可以通过简单，有效和可控的溶胀蒸发策略转化为纳米管。通过控制溶胀度，可以制备表面图案化的聚邻甲苯胺（POT）纳米纤维和内径可控的纳米管。这种纳米管的新颖特性，如图案化的表面和密封的尖端，将赋予它们在控制药物输送、贵金属纳米催化剂载体和重金属离子吸附剂等领域应用时增强的性能。
Hollowing of inorganic nano/micromaterials can be realized by well-known Ostwald ripening and Kirkendall processes. However, hollowing of organic polymer without sacrificial templates is seldom seen. Herein, we demonstrate for the first time that conducting polymer nanofibers can be transformed into nanotubes by a simple, effective, and controllable swelling-evaporation strategy. By controlling swelling degree, surface-patterned poly(o-toluidine) (POT) nanofibers, and nanotubes with controllable inner diameter can be fabricated. Novel characteristics of such nanotubes, such as patterned surfaces and sealed tips, will endow them with enhanced properties when applied in fields as controlled drug delivery, noble metal nanocatalysts supporter, and adsorbent for heavy-metal ions.