期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 171, 期 -, 页码 198-203出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2012.03.007
关键词
Biosensor; DNA sensor; Hybridization detection; Organic electronics; Fluorescence
资金
- Regione Autonoma della Sardegna (RAS) under the P.O.R. Sardegna FSE
A novel DNA sensor able to detect the DNA hybridization in liquids is presented. The device is a charge sensor, realized with an organic field effect transistor, sensitive to the negatively charged DNA phosphates groups. Compared to other examples of DNA sensors based on organic transistors, this device has two noticeable features: the probe area is completely separated from the transistor area and the sensing mechanism is not reliant on the choice of the device materials. Moreover, the device architecture has been designed in order to avoid any damaging treatment that may reduce the stability of the organic semiconductor. These features make this device especially suitable for the realization of portable and low cost sensors. Two devices (one used as reference and the other as sensor) are measured at the same time in order to get rid of current drifts which are due to organic semiconductor degradation or bias stress, and to enhance variations induced by the DNA sensing mechanism. (C) 2012 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据