Abstract
In this work, we propose and demonstrate a carbon nanotube (CNT) field-effect transistor (FET) based biosensor for selective detection of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). CNT FETs were fabricated on a flexible Kapton substrate and the sensor was fabricated by immobilizing the reverse sequence of the RNA-dependent RNA polymerase gene of SARS-CoV-2 onto the CNT channel. The biosensors were tested for the synthetic positive and control target sequences. The biosensor showed a selective sensing response to the positive target sequence with a limit of detection of 10 fM. The promising results from our study suggest that the CNT FET based biosensors can be used as a diagnostic tool for the detection of SARS-CoV-2.
【저자키워드】 COVID-19, SARS-CoV-2, coronavirus, rapid detection, biosensor, Carbon nanotube field-effect transistor, 【초록키워드】 diagnostic, limit of detection, RNA-dependent RNA polymerase, acute respiratory syndrome, sequence, selective, positive, flexible, tested, can be used, CNT, Kapton,