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Graphene quantum dots (GQDs) are emerging zero dimensional materials promising various novel applications due to their extraordinary physicochemical properties. In this work, novel conjugates of GQDs and gold nanoparticles (AuNPs) are synthesized and used for sensitive electrochemical detection of heavy metal ions (Hg 2+ and Cu 2+ ). Ultralow detection limit (0.02nM with S/N=6.25 for...
In this work, we report the preparation of a nanocomposite consisting of gold nanoparticles (AuNPs) electrochemically deposited on electrochemically reduced graphene oxide (ERGO), and its use for sub-micromolar detection of nitric oxide (NO). ERGO network provides highly conductive pathways for electron conduction and a large surface area for catalyst support, while AuNPs act as efficient electrocatalysts...
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