Wearable Cortisol Aptasensor for Simple and Rapid Real-Time Monitoring
Wearable Cortisol Aptasensor for Simple and Rapid Real-Time Monitoring
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DOI:
10.1021/acssensors.1c01734
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发表时间:
2022-01-07
期刊:
影响因子:
8.9
通讯作者:
Kwon, Oh Seok
中科院分区:
文献类型:
--
作者:
An, Jai Eun;Kim, Kyung Ho;Kwon, Oh Seok
The necessity of managing stress levels is becoming increasingly apparent as the world suffers from different kinds of stresses including the extent of pandemic, the corona virus disease 2019 (COVID-19). Cortisol, a clinically confirmed stress hormone related to depression and anxiety, affects individuals mentally and physically. However, current cortisol monitoring methods require expert personnel, large and complex machines, and long time for data analysis. Here, we present a flexible and wearable cortisol aptasensor for simple and rapid cortisol real-time monitoring. The sensing channel was produced by electrospinning conducting polyacrylonitrile (PAN) nanofibers (NFs) and subsequent vapor deposition of carboxylated poly(3,4-ethylenedioxythiophene) (PEDOT). The conjugation of the cortisol aptamer on the PEDOT-PAN NFs provided the critical sensing mechanism for the target molecule. The sensing test was performed with a liquid-ion gated field-effect transistor (FET) on a polyester (polyethylene terepthalate). The sensor performance showed a detection limit of 10 pM (