Multilayered Semiconductor Membranes for Nanopore Ionic Conductance Modulation

被引:37
作者
Gracheva, Maria E. [2 ]
Melnikov, Dmitriy V. [1 ,2 ]
Leburton, Jean-Pierre [1 ,2 ]
机构
[1] Univ Illinois, Dept Elect & Comp Engn, Urbana, IL 61801 USA
[2] Univ Illinois, Beckman Inst Adv Sci & Technol, Urbana, IL 61801 USA
关键词
transistor; ionic diode; doped semiconductor; surface charge; voltage-gated ion channels;
D O I
10.1021/nn8004679
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We explore the possibility of using thin layered semiconductor membranes for electrical control of the ion current flow through a nanopore, thereby operating like tunable ionic transistors. While single layer semiconductor membranes can be voltage tuned to operate as ionic filters or "switches", double layered membranes can rectify the ion current flowing through the nanopore in addition to ion filtering. Triple layer membranes exhibit enhanced functionality with characteristics similar to those of the single and double layer membranes in addition to bidirectional current blocking and switching, thereby operating similar to tunable ionic transistors.
引用
收藏
页码:2349 / 2355
页数:7
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