2026-06-21T18:04:50Zhttps://riubu.ubu.es/oai/requestoai:riubu.ubu.es:10259/53452022-04-08T10:18:38Zcom_10259_4376com_10259_5086com_10259_2604col_10259_4377
Repositorio Institucional de la Universidad de Burgos
author
Molinero Abad, Begoña
author
Pérez Ruiz, Lydia
author
Izquierdo Bote, Daniel
author
Escudero Barbero, Isabel
author
Arcos Martínez, Julia
2020-06-17T13:27:02Z
2020-06-17T13:27:02Z
2019-01
0039-9140
http://hdl.handle.net/10259/5345
10.1016/j.talanta.2018.09.072
The monitoring of marine dinophysistoxin okadaic acid in seawater can serve as an early alert system for preventing the potential negative effects this toxin can have on the food industry and human health in general. A disposable sensor system for electrochemical detection of this toxin has been developed using screen-printed electrodes. The method described is based on the inhibition of protein phosphatase type 2A by okadaic acid, evaluating the enzyme activity. p-Nitrophenyl phosphate, 4-methylumbelliferyl phosphate and phenyl phosphate have been tested as substrates achieving good limits of detection of 2.7·10–12 M of okadaic acid. The proposed method has been successfully applied to okadaic acid determination in seawater samples. A study of divalent cations present in seawater that can interfere with the measurement has been carried out. The electrode systems were printed on both rigid and textile backing materials to observe the influence of those materials on the final performance of the sensor.
eng
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Okadaic acid
Screen printed electrodes
Textile sensors
Seawater
PP2A
Sensor system based on flexible screen-printed electrodes for electrochemical detection of okadaic acid in seawater
info:eu-repo/semantics/article
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URL
https://riubu.ubu.es/bitstream/10259/5345/1/Molinero-talanta_2019.pdf
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Molinero-talanta_2019.pdf.txt