A polysaccharide bioprotonic field-effect transistor.
A polysaccharide bioprotonic field-effect transistor.
复制标题
DOI：
10.1038/ncomms1489
复制
发表时间：
2011-09
影响因子：
16.6
通讯作者：
Chao Zhong;Yingxin Deng;A. F. Roudsari;A. Kapetanović;M. Anantram;M. Rolandi
中科院分区：
文献类型：
--
作者：
Chao Zhong;Yingxin Deng;A. F. Roudsari;A. Kapetanović;M. Anantram;M. Rolandi
在自然界中，电信号发生在离子和质子，而不是电子。因此，可以控制和监测离子和质子电流的人工装置是与生物系统接口的理想手段。在这里，我们报告的第一个演示的生物聚合物质子场效应晶体管与质子透明的PdHx接触。在马来酸-壳聚糖纳米纤维中，质子电流的流动通过施加到栅电极的静电势来打开或关闭。质子沿着水合马来-壳聚糖氢键网络移动，迁移率约为4.9×10− 3 cm 2 V − 1 s −1。这项研究介绍了一类新的生物相容性固态器件，它可以控制和监测质子电流的流动。这代表了向生物纳米质子学迈出的一步。
In nature, electrical signalling occurs with ions and protons, rather than electrons. Artificial devices that can control and monitor ionic and protonic currents are thus an ideal means for interfacing with biological systems. Here we report the first demonstration of a biopolymer protonic field-effect transistor with proton-transparent PdHxcontacts. In maleic-chitosan nanofibres, the flow of protonic current is turned on or off by an electrostatic potential applied to a gate electrode. The protons move along the hydrated maleic–chitosan hydrogen-bond network with a mobility of ~4.9×10−3cm2V−1s−1. This study introduces a new class of biocompatible solid-state devices, which can control and monitor the flow of protonic current. This represents a step towards bionanoprotonics.