Electrospun modified PAN-porphyrin nanofiber electrode for caffeine detection

Guzel, Umut; Can, G.; Büyüksünetçi, Yudum Tepeli; Haklı, Özgül; OYLUMLUOĞLU, Görkem; Anık, Ülkü

doi:10.1016/j.matchemphys.2023.128129

Cited by 3 publications

(2 citation statements)

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“…Several metallic oxides were used such as 3D ZnCo 2 O 4 [22], Gd 2 (MoO 4 ) 3 [23], ZnO [24], TiO 2 [25], the obtained detection limits were respectively 11.4 nM, 4.1 nM, 150 nM, 3.3 μM. Some other compounds were used for the sensitive detection of caffeine: phenantroline Cu(II) [26], Cu-MOF [27] and porphyrin [28] leading to respective detection limits 10.2 nM, 19 nM and 14.06 μM. A potentiometric sensors was also designed for the caffeine detection.…”

Section: Introductionmentioning

confidence: 99%

A new microconductometric sensor based on a PVC membrane including an o‐COSAN ion‐pair complex for the detection of caffeine

Calzia,

Ayed,

Ben Aissa

et al. 2024

Electroanalysis

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Section: Introductionmentioning

confidence: 99%

A new microconductometric sensor based on a PVC membrane including an o‐COSAN ion‐pair complex for the detection of caffeine

Calzia,

Ayed,

Ben Aissa

et al. 2024

Electroanalysis

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“…The culinary and pharmaceutical sectors frequently employ CAF, especially in high-content CAF beverages. Tea and coffee plants naturally contain the active alkaloid known as CAF pharmacologically, CAF affects the cardiovascular system, diuresis and central nervous system in several ways (GÜZEL et al 2023). Adenosine's ability to attach to receptors allows it to prevent the release of certain neurotransmitters, which have sedative and anticonvulsant properties (Chen et al 2021).…”

Section: Introductionmentioning

confidence: 99%

Electrochemically active via f-MWCNTs for finding caffeine in beverages

Chen,

Ye,

et al. 2024

Preprint

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In several industries, such as food, pharmaceuticals, and environmental protection, the identification of analytes at extremely low concentrations is essential. In the food standardization field, electrochemical sensors are one of the key technologies for determining food quality and making medical diagnoses. Sensor design is dependent on electrochemically active characteristics of the selected material to alter the electrode. For rapid and accurate detection of caffeine (CAF), we technologically built an electrochemical sensor based on functionalized multi-walled carbon nanotubes (f-MWCNTs/GCE). The functionalized material was characterized by XRD, Raman, FT-IR, FE-SEM, HR-TEM, EDX and the mapping of elements. The component’s natural virtue and cooperative connection demonstrate enhanced electrocatalytic activity, as evidenced by the component’s decreased overpotential, increased electron transfer, improved sensing and selectivity, broad linear range, and low detection limit toward the selected analyte. CAF was found to have broad linear ranges of concentrations 5.3 to 166 µM, with detection limits of 0.043 µM. 9.13 µA. µm− 1 is the designed electrode's sensitivity. High selectivity, stability, repeatability and reproducibility were also demonstrated by the electrode. Crucially, the investigation was effective in identifying and measuring the aforementioned element in authentic specimens. In addition, the sensor demonstrated efficacy in detecting CAF in drinks, yielding good recoveries ranging from 96.4–102.4%. This suggests that the sensor holds desirable potential for identifying CAF real substances.

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