Abstract
The present research proposed the use of silver nanoprism in a fluorescent system for phenytoin determination in exhaled breath condensate samples. The fluorescence emission of luminol was quenched by energy transfer to silver nanoprism and then the phenytoin addition induced silver nanoprism aggregation, inhibited the fluorescence quenching of luminol, and resulted in recovery of the fluorescence intensity proportionally with phenytoin concentration. The experimental parameters were optimized using a one-at-a time method, and the method was partially validated according to FDA guideline. The validated method had a good analytical performance to detect phenytoin in the range of 0.01 to 2.0 µg.mL−1, with a detection limit of 0.005 µg.mL−1.
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Funding
This work was supported by Research Affairs of Tabriz University of Medical Sciences, under grant number 71065.
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AZ: investigation, writing the first draft; ZK: investigation; MK: collecting the real samples; VJ-G: the device managing; ER: data curation, writing—review and editing; AJ: supervision, writing—review and editing. All authors reviewed the manuscript.
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Sample donors signed a consent form approved by the Ethics Committee of the Tabriz University of Medical Sciences (Approval No. IR.TBZMED.VCR.REC.1401.345).
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Zarghampour, A., Karimzadeh, Z., Khoubnasabjafari, M. et al. A Silver Nanoprism-Based “Off-On” Sensor for Phenytoin Determination in Exhaled Breath Condensate. Plasmonics (2023). https://doi.org/10.1007/s11468-023-02157-5
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DOI: https://doi.org/10.1007/s11468-023-02157-5