A simple, low cost, sensitive, and portable electrochemical immunochromatography sensing device to measure estrone-3-sulfate

Wataru Iwasaki, Chiwa Kataoka, Kazuyuki Sawadaishi, Keitaro Suyama, Nobutomo Morita, Masaya Miyazaki

研究成果: Contribution to journalLetter査読

抄録

In livestock production, point-of-care testing (POCT) technology that enables easy on-site analysis of sex hormones is desired to improve reproductive efficiency. In this context, low-molecular-weight endogenous steroids are particularly important for perinatal management. Therefore, we attempted to use a simple method that combines electrochemical techniques with immunochromatography to measure estrone-3-sulfate (E1S), one of the low-molecular-weight endogenous steroids that is an estrogen ester. The limit of detection (LOD) for E1S achieved by electrochemical immunochromatography was 570.5 ng/mL, which was one to two orders of magnitude lower than that of small molecule compounds analyzed by other POCT techniques (Primpray et al., Anal. Chim. Acta, 2019). In addition, it was indicated by a colorimetric analysis that the sensitivity of the electrochemical immunochromatographic technique could be enhanced by improving the method of application of the antibodies on the nitrocellulose membrane and the contact between the electrochemical detector and the nitrocellulose membrane.

本文言語英語
論文番号4781
ページ(範囲)1-11
ページ数11
ジャーナルSensors (Switzerland)
20
17
DOI
出版ステータス出版済み - 9 1 2020

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Biochemistry
  • Atomic and Molecular Physics, and Optics
  • Instrumentation
  • Electrical and Electronic Engineering

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