Piezoelectric properties reflecting nanostructures of tetrathiafulvalene and chloranil complexes using cyclic peptide nanotube scaffolds
Piezoelectric properties reflecting nanostructures of tetrathiafulvalene and chloranil complexes using cyclic peptide nanotube scaffolds
复制标题
DOI：
10.1002/pep2.24192
复制
发表时间：
2020-09
期刊：
影响因子：
2.4
通讯作者：
H. Ohmura;Yukitomo Tabata;S. Kimura;Hirotaka Uji
中科院分区：
文献类型：
--
作者：
H. Ohmura;Yukitomo Tabata;S. Kimura;Hirotaka Uji
四硫富瓦烯（TTF）和四氯苯醌被引入到不同的环状三肽的侧链上，它们自组装成肽纳米管（PNT）。PNT被用作TTF和四氯苯醌之间的电荷转移复合物的配向的支架，并且它们通过两种方法制备，一种是将仅包含TTF的PNT与仅包含四氯苯醌的PNT混合（方法1），另一种是将环三肽与TTF和环三肽与四氯苯醌一锅混合以自组装成PNT（方法2）。这些PNT自然结合形成PNT束。PNT束的表面电势对于沿着PNT沿着携带电荷转移复合物的PNT（方法2）变得比PNT之间的表面电势（方法1）更大。根据压电力显微镜测量，沿着PNT（方法2）沿着携带电荷转移复合物的PNT束在具有变化的偏置电压的压电力曲线中显示出滞后响应。
Tetrathiafulvalene (TTF) and chloranil were introduced at the side chains of different cyclic tripeptides, which were self‐assembled into peptide nanotubes (PNTs). PNTs were used as scaffolds for alignment of the charge‐transfer complexes between TTF and chloranil, and they were prepared via two methods, one is that mixing a PNT comprising only TTF with a PNT comprising only chloranil (method 1), and the other is that one pot mixing of cyclic tripeptides with TTF and cyclic tripeptides with chloranil to be self‐assembled into PNTs (method 2). These PNTs naturally associated to form PNT bundles. The surface potentials of the PNT bundles became larger for the PNTs carrying charge‐transfer complexes along the PNT (method 2) than those between PNTs (method 1). This bundle of PNT carrying charge‐transfer complexes along the PNT (method 2) showed a hysteresis response in the piezoelectric force curve with varying bias voltages according to piezoelectric force microscope measurements.