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Conferences > OFS > 2023 > Tu3 > Tu3.2

Copper ions sensing with aptamer-biofunctionalized bi-stack thin film interferometer on optical fiber tip

Mateusz Śmietana, Jakub Sikora, Agnieszka Martychowiec, Norbert Kwietniewski, Monika Janik, Marcin Koba, and Marcin Olszewski

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Abstract

A thin-film interferometric structure obtained on fiber’s tip and biofunctionalized with aptamers is studied for label-free sensing of copper ions. As low as 100 nM Cu2+ has been detected with negligible sensitivity to Ni2+ ions.

© 2023 The Author(s)

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