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Publication No: IN202311063601 [India] Application No: IN202311063601
Title: AN ELECTROCHEMICAL SENSOR FOR DETECTION OF HOMOCYSTEINE USING COPPER-COUMARIN ELECTRODES
Publication Date: 28-03-2025 File Date: 21-09-2023
Inventor(s): Pandiaraj Manickam; Sriraja Subhasri Paramasivam; Pabitra Baran Chatterjee; Snehasish Debnath
IPC Classification: G01N 27/26, G01N 27/30, C07F 1/08, G01N 27/327, C07D 405/12, C07D 311/12
Abstract:
The present invention relates to a copper coumarin compound of Formula A [C20H20CuN4O(NO3)2] electrode for electrochemical sensing of homocysteine (Hcy) in  carbonate-bicarbonate buffer at pH 10.2-10.8, even in the presence of higher concentration of other competing species such as cysteine, glutathione, ascorbic acid. The  copper-coumarin electrodes based electrochemical sensor can be measure Hcy selectivity in serum sample even at a low concentration (1 ?M). The copper-coumarin  electrodes based electrochemical sensor is suitable for measuring Hcy in real time analysis since no requirement of binding time and the electrode modification  procedure is simple. The limit of detection and limit of quantification for Hcy is 0.025 ?M and 0.077 ?M with R2 square value 0.96. The peak current observed at the  peak potential showed a linear increase in current with respect to Hcy concentrations. Other biothiols such as cysteine (Cys) and glutathione (GSH) did not produce any  detectable signal at the peak potential observed for Hcy, indicating the selective nature of the electrosensor towards Hcy.
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Industrial Applications Chemistry, Chemical Processes Polymers [Chemistry, Chemical Processes] Electromagnetics [Physics] Sensors [Electronics]