Sensing Estrogen with Electrochemical Impedance Spectroscopy

This study demonstrates the application feasibility of electrochemical impedance spectroscopy (EIS) in measuring estrogen (17β-estradiol) in gas phase. The present biosensor gives a linear response (R (2) = 0.999) for 17β-estradiol vapor concentration from 3.7 ng/L to 3.7 × 10(−4) ng/L with a limit...

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Detalles Bibliográficos
Autores principales: Li, Jing, Kim, Byung Kun, Wang, Kang-Kyun, Im, Ji-Eun, Choi, Han Nim, Kim, Dong-Hwan, Cho, Seong In, Lee, Won-Yong, Kim, Yong-Rok
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi Publishing Corporation 2016
Materias:
Research Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5075617/
https://www.ncbi.nlm.nih.gov/pubmed/27803838
http://dx.doi.org/10.1155/2016/9081375
Descripción
Sumario:This study demonstrates the application feasibility of electrochemical impedance spectroscopy (EIS) in measuring estrogen (17β-estradiol) in gas phase. The present biosensor gives a linear response (R (2) = 0.999) for 17β-estradiol vapor concentration from 3.7 ng/L to 3.7 × 10(−4) ng/L with a limit of detection (3.7 × 10(−4) ng/L). The results show that the fabricated biosensor demonstrates better detection limit of 17β-estradiol in gas phase than the previous report with GC-MS method. This estrogen biosensor has many potential applications for on-site detection of a variety of endocrine disrupting compounds (EDCs) in the gas phase.

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