A Potentiometric Sensor Based on a Molecularly Imprinted Polymer Modified with Multi-Walled Carbon Nanotubes for the Selective Determination of Thiabendazole Residues in Fruit Peels.
- 1Department of Chemistry, Josip Juraj Strossmayer University of Osijek, Cara Hadrijana 8/A, 31000 Osijek, Croatia.
Abstract
Thiabendazole (TBZ) is a widely used post-harvest fungicide for fruit protection. Therefore, a new potentiometric sensor for TBZ determination based on a molecularly imprinted polymer (MIP) modified with multi-walled carbon nanotubes (MWCNTs) was developed. Different plasticizers, amounts of sensor material, and MWCNTs were tested during sensor optimization. The best sensor response was obtained for the membrane containing dibutyl phthalate (DBP) as a plasticizer, 3 wt% sensor material, and 2 wt% MWCNTs. The selected sensor showed a slope of 59.7 mV/decade of activity, a limit of detection (LOD) of 3.2·10⁻⁷ M, and a wide measuring range (6.2·10⁻⁷-1.0·10⁻³ M). The response time was 4 s, with a stable signal and a potential drift of 0.72 mV/h. The sensor was applied for TBZ determination in standard solutions and prepared fruit-peel extracts (orange, banana, and lemon).
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BibTeX
@article{samardzic2026potentiometric,
title = {{A Potentiometric Sensor Based on a Molecularly Imprinted Polymer Modified with Multi-Walled Carbon Nanotubes for the Selective Determination of Thiabendazole Residues in Fruit Peels.}},
author = {Mirela Samardžić and Andrea Dandić and Izabella Doris Panić and Mateja Budetić},
journal = {Sensors (Basel, Switzerland)},
year = {2026},
month = oct,
doi = {10.3390/s26206474},
url = {https://europepmc.org/article/MED/42944337},
note = {CC BY},
}
RIS
TY - JOUR
TI - A Potentiometric Sensor Based on a Molecularly Imprinted Polymer Modified with Multi-Walled Carbon Nanotubes for the Selective Determination of Thiabendazole Residues in Fruit Peels.
AU - Mirela Samardžić
AU - Andrea Dandić
AU - Izabella Doris Panić
AU - Mateja Budetić
PY - 2026
DA - 2026/10/13
JO - Sensors (Basel, Switzerland)
DO - 10.3390/s26206474
UR - https://europepmc.org/article/MED/42944337
AB - Thiabendazole (TBZ) is a widely used post-harvest fungicide for fruit protection. Therefore, a new potentiometric sensor for TBZ determination based on a molecularly imprinted polymer (MIP) modified with multi-walled carbon nanotubes (MWCNTs) was developed. Different plasticizers, amounts of sensor material, and MWCNTs were tested during sensor optimization. The best sensor response was obtained for the membrane containing dibutyl phthalate (DBP) as a plasticizer, 3 wt% sensor material, and 2 wt% MWCNTs. The selected sensor showed a slope of 59.7 mV/decade of activity, a limit of detection (LOD) of 3.2·10⁻⁷ M, and a wide measuring range (6.2·10⁻⁷-1.0·10⁻³ M). The response time was 4 s, with a stable signal and a potential drift of 0.72 mV/h. The sensor was applied for TBZ determination in standard solutions and prepared fruit-peel extracts (orange, banana, and lemon).
SN - 1424-8220
ER -