Development of a multiplexing Biosensing platform for the simultaneous detection of Snake and Scorpion venoms
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United States of America Patent
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Mar 27, 2025
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Sep 25, 2023
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Sep 25, 2023
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Abstract
A dual immunosensor was fabricated on graphene/gold nanoparticle modified screen-printed electrodes and used for simultaneous of the six snake and two scorpion species venoms within wide linear ranges. The electrodes were first modified with two chemical linkers (cysteamine/phenylene diisothiocyanate) in order to facilitate the immobilization of the antibodies through covalent binding. The species specific GPH-GNP/cysteamine/PDITC/SPCE immunosensor was tested with six different snake species venoms and two specific venoms from scorpion species. The detection was observed by monitoring the reduction peak current variation after the venom binding using square wave voltammetry, in presence ferro/ferricyanide redox system.
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