Biomimetic Superhelical Conducting Microfibers with Homochirality for Enantioselective Sensing
详细信息 查看全文
- 作者：Wenjun Zou ; Yong Yan ; Jin Fang ; Yang Yang ; Jie Liang ; Ke Deng ; Jianlin Yao ; Zhixiang Wei
- 刊名：Journal of the American Chemical Society
- 出版年：2014
- 出版时间：January 15, 2014
- 年：2014
- 卷：136
- 期：2
- 页码：578-581
- 全文大小：256K
- ISSN：1520-5126
文摘
Chiral amplification and discrimination are great challenges in both scientific and technological research fields such as chemical synthesis, chiral catalysis, and biomedicine. By mimicking protein superstructures in nature, chiral conducting polyaniline (PANI) molecules induced by chiral dopants were self-assembled to ultra-ordered superhelical microfibers. The induced homochirality is observed to be amplified into different hierarchies, from chiral molecules to helical nanostructures, and to superhelical microstructures. Furthermore, both experimental and theoretical results indicated that the gas sensor made from a single PANI helical microfiber showed enantioselective discrimination to chiral aminohexane, giving it great potential for applications in online chiral discrimination.