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Nanoparticle‐assisted alignment of carbon nanotubes on DNA origami
Angewandte Chemie International Edition ( IF 12.257 ) Pub Date : 2020-01-13 , DOI: 10.1002/anie.201916043
Yueyue Zhang; Xiuhai Mao; Fan Li; Min Li; Xinxin Jing; Zhilei Ge; Lihua Wang; Kai Liu; Hongjie Zhang; Chunhai Fan; Xiaolei Zuo

Aligning carbon nanotubes (CNTs) is a key challenge for fabricating CNT electronic device. Here, we report a spherical nucleic acids (SNAs)‐mediated approach for highly precise oriented aligning CNTs at prescribed sites on DNA origami. We find that the cooperative DNA hybridization occurring at the interface of SNA and CNT leads to ~five‐fold improvement of the positioning efficiency. By combining the intrinsic addressability of DNA origami, we have achieved the parallelly aligned CNTs with an extremely small angular variation within 10°. Moreover, we demonstrate that the parallelly aligned CNTs prevent the incorrect logic functionality originated from the stray conducting paths due to the angular mis‐alignment of CNTs. This SNAs‐mediated method thus holds great potential for fabricating scalable CNT arrays for nanoelectronics.
更新日期:2020-01-14

 

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