Investigating Ion Transport through Artificial Transmembrane Channels Containing Introverted Groups

Abstract

The investigation on the relationship between structure and transport activity of artificial transmembrane channels has still remained a challenge because of lacking strategy to precisely arrange the functional group in the channel structures. Herein, we report a general strategy to monitor ion transport through the artificial channels by using unimolecular tubular molecules containing introverted groups. We found that the ion transport rate decreased with elongation of the introverted sidechains and the channel with propyl group as the introverted sidechain exhibited the longest opening duration time. Moreover, we have revealed that, comparing to the ion transport rate, the opening duration is a more important factor for determining the transport activity of the artificial channels.

A Pd2L4 Metallacage‐Cored Supramolecular Amphiphile and Its Application in Dual‐Responsive Controllable Release†

“…[ 13‐15 ] Therefore, it is necessary and important to design dual‐ or multi‐responsive systems. Self‐assembly is the process by which simple molecules or macromolecular building blocks spontaneously form complexes and stable topologies, [ 16‐19 ] and usually their overall functions are greater than the sums of their parts. [ 20‐21 ]…”

Synthesis and Characterization of a Novel Pillar[5]arene That can Undergo Single-Crystal-to-Single-Crystal (SCSC) Transformation★

“…单晶 到单晶的转变可以通过晶体对多种外部刺激(温度 [3][4] 、 光照 [5][6] 、 机械力 [6][7][8][9] 和蒸汽 [9][10][11] )的响应而实现, 已在传感 器 [12][13][14] 、吸附 [15][16][17][18] 、催化 [13] 、手性 [19] 、信息加密 [20] 和分 子机器 [21][22] 等领域展现了卓越的应用前景. 柱芳烃是一类具备柱状结构和独特空腔的大环分 子, 因其空腔结构赋予的主客体性质被广泛应用于超分 子化学和功能材料研究 [23][24][25][26][27][28][29][30][31][32][33] . 在本研究中, 为了构建具 有新型主客体功能的柱芳烃分子, 将吩噻嗪引入柱芳 烃, 成功合成了一种具有新型骨架结构的柱 [5]芳烃.…”