Undeclared phosphodiesterase type 5 inhibitors (PDE5Is) in food supplements on the Croatian market analyzed by liquid chromatography time-of-flight mass spectrometry (LC-QTOF-MS)

Kosić-Vukšić, Josipa; Krivohlavek, Adela; Žuntar, Irena; Pocrnić, Marijana; Galić, Nives

doi:10.1016/j.microc.2024.110917

Microchemical Journal

2024

DOI: 10.1016/j.microc.2024.110917

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Undeclared phosphodiesterase type 5 inhibitors (PDE5Is) in food supplements on the Croatian market analyzed by liquid chromatography time-of-flight mass spectrometry (LC-QTOF-MS)

Josipa Kosić-Vukšić,

Adela Krivohlavek,

Irena Žuntar

et al.

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Cited by 2 publications

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Research Progress in the Emerging Contaminants in Groundwater in China

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2024

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Research Progress in the Emerging Contaminants in Groundwater in China

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Paper-Based Aptasensor Assay for Detection of Food Adulterant Sildenafil

Kavruk,

Ozalp

2024

Biosensors

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Sildenafil is used to treat erectile dysfunction and pulmonary arterial hypertension but is often illicitly added to energy drinks and chocolates. This study introduces a lateral flow strip test using aptamers specific to sildenafil for detecting its illegal presence in food. The process involved using graphene oxide SELEX to identify high-affinity aptamers, which were then converted into molecular gate structures on mesoporous silica nanoparticles, creating a unique signaling system. This system was integrated into lateral flow chromatography strips and tested on buffers and chocolate samples containing sildenafil. The method simplifies the lateral flow assay (LFA) for small molecules and provides a tool for signal amplification. The detection limit for these strips was found to be 68.2 nM (31.8 µg/kg) in spiked food samples.

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Undeclared phosphodiesterase type 5 inhibitors (PDE5Is) in food supplements on the Croatian market analyzed by liquid chromatography time-of-flight mass spectrometry (LC-QTOF-MS)

Cited by 2 publications

References 43 publications

Research Progress in the Emerging Contaminants in Groundwater in China

Research Progress in the Emerging Contaminants in Groundwater in China

Paper-Based Aptasensor Assay for Detection of Food Adulterant Sildenafil

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