Disposable Electrochemical Sensor Based on MXene/Graphene Nanoplatelets/Ionic Liquid for the Determination of Anticancer Drug Imiquimod

This study describes the development of a novel, ultrasensitive, and selective electrochemical sensor to determine imiquimod (IMQ) using a screen-printed carbon electrode (SPCE) modified with MXene (Ti 3 C 2 T x ), graphene nanoplatelets, and ionic liquid (Ti 3 C 2 T x /GNPs/IL). This work reveals t...

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Veröffentlicht in:Journal of the Electrochemical Society 2023-11, Vol.170 (11), p.117508
Hauptverfasser: Kalambate, Pramod K., Primpray, Vitsarut, Kamsong, Wichayaporn, Karuwan, Chanpen, Laiwattanapaisal, Wanida
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container_issue 11
container_start_page 117508
container_title Journal of the Electrochemical Society
container_volume 170
creator Kalambate, Pramod K.
Primpray, Vitsarut
Kamsong, Wichayaporn
Karuwan, Chanpen
Laiwattanapaisal, Wanida
description This study describes the development of a novel, ultrasensitive, and selective electrochemical sensor to determine imiquimod (IMQ) using a screen-printed carbon electrode (SPCE) modified with MXene (Ti 3 C 2 T x ), graphene nanoplatelets, and ionic liquid (Ti 3 C 2 T x /GNPs/IL). This work reveals the synergistic effect of Ti 3 C 2 T x , GNPs, and IL, where Ti 3 C 2 T x and GNPs provide a large active electrode area and excellent electron transport, and IL exhibits remarkable electrocatalytic behavior. Benefiting from the excellent electrochemical properties of the composite, the developed sensing platform enabled superior electrochemical performance for IMQ in the broad linear range of 0.071–92.0 μ M (R 2 = 0.999) with a limit of detection (LOD) of 0.487 nM and a detection sensitivity of 7.558 μ A μ M −1 cm −2 . Meanwhile, the sensor has shown good repeatability, reproducibility, stability, and anti-interference ability and has been subsequently used to detect IMQ in cream formulations with satisfactory recoveries (98.33%–99.34%) and lower relative standard deviations (
doi_str_mv 10.1149/1945-7111/ad0b47
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This work reveals the synergistic effect of Ti 3 C 2 T x , GNPs, and IL, where Ti 3 C 2 T x and GNPs provide a large active electrode area and excellent electron transport, and IL exhibits remarkable electrocatalytic behavior. Benefiting from the excellent electrochemical properties of the composite, the developed sensing platform enabled superior electrochemical performance for IMQ in the broad linear range of 0.071–92.0 μ M (R 2 = 0.999) with a limit of detection (LOD) of 0.487 nM and a detection sensitivity of 7.558 μ A μ M −1 cm −2 . Meanwhile, the sensor has shown good repeatability, reproducibility, stability, and anti-interference ability and has been subsequently used to detect IMQ in cream formulations with satisfactory recoveries (98.33%–99.34%) and lower relative standard deviations (&lt;3%). 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Electrochem. Soc</addtitle><description>This study describes the development of a novel, ultrasensitive, and selective electrochemical sensor to determine imiquimod (IMQ) using a screen-printed carbon electrode (SPCE) modified with MXene (Ti 3 C 2 T x ), graphene nanoplatelets, and ionic liquid (Ti 3 C 2 T x /GNPs/IL). This work reveals the synergistic effect of Ti 3 C 2 T x , GNPs, and IL, where Ti 3 C 2 T x and GNPs provide a large active electrode area and excellent electron transport, and IL exhibits remarkable electrocatalytic behavior. Benefiting from the excellent electrochemical properties of the composite, the developed sensing platform enabled superior electrochemical performance for IMQ in the broad linear range of 0.071–92.0 μ M (R 2 = 0.999) with a limit of detection (LOD) of 0.487 nM and a detection sensitivity of 7.558 μ A μ M −1 cm −2 . Meanwhile, the sensor has shown good repeatability, reproducibility, stability, and anti-interference ability and has been subsequently used to detect IMQ in cream formulations with satisfactory recoveries (98.33%–99.34%) and lower relative standard deviations (&lt;3%). 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Benefiting from the excellent electrochemical properties of the composite, the developed sensing platform enabled superior electrochemical performance for IMQ in the broad linear range of 0.071–92.0 μ M (R 2 = 0.999) with a limit of detection (LOD) of 0.487 nM and a detection sensitivity of 7.558 μ A μ M −1 cm −2 . Meanwhile, the sensor has shown good repeatability, reproducibility, stability, and anti-interference ability and has been subsequently used to detect IMQ in cream formulations with satisfactory recoveries (98.33%–99.34%) and lower relative standard deviations (&lt;3%). 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