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April 3, 2026Journal of Applied ElectrochemistryOpen Access

Au/Vulcan@chitosan nanocomposite as a simple and cost˗effective sensing interface for the voltammetric detection of 17β˗estradiol

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Authors

IOIgor G. S. OliveiraAMAna P. da S. MachadoFGFernando C. Gallina

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Overview

Novel sensor detects 17β-estradiol in various samples, indicating a reliable environmental monitoring tool.

Key Points

  • The aim is to develop a cost-effective electrochemical sensor for the detection of 17β-estradiol.
  • Developed a carbon sensor using screen printing on PVC substrate.
  • Modified the sensor with Vulcan XC72R carbon in chitosan and gold.
  • Characterized using cyclic voltammetry and optimized detection conditions.
  • Conducted recovery studies in different matrices including water and blood serum.
  • Performed interference tests to assess selectivity.
  • Achieved a linear detection range of 0.10 to 45.00 µmol L⁻1 with a high correlation coefficient (R² = 0.992).
  • The limit of detection was 0.025 µmol L⁻1.
  • Recovery rates were between 98.7% and 111.4% in diverse matrices.
  • Demonstrated high selectivity against common co-existing substances.

Cite This Study

Oliveira et al. (2026) studied this question.

synapsesocial.com/papers/69cf5fe05a333a821460ea08https://doi.org/10.1007/s10800-026-02468-5
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