Graphdiyne chelated AuNPs for ultrasensitive electrochemical detection of tyrosine
Literature Information
Zhuanzhuan Shi, Yunpeng Li, Xiaoshuai Wu, Kaiwen Zhang, Jiatao Gu, Wei Sun, Chang Ming Li, Chun Xian Guo
Tyrosine (Tyr) is a kind of amino acid that can regulate emotions and stimulate the nervous system, and it is of great importance to realize its ultrasensitive detection. A unique material of graphdiyne chelated AuNPs (GDY@AuNPs) is designed and developed to realize high-performance electrochemical sensing of Tyr. GDY promotes the absorption of Tyr via π–π interaction, and its CC strongly chelates with AuNPs for greatly improved sensitivity. GDY@AuNPs delivers a sensitivity of up to 181.2 μA mM−1 cm−2 and a wide range of 0.1–600 μM, among the best for carbon or AuNPs-based materials for the detection of Tyr. It demonstrates the accurate detection of Tyr in human sweat for potential practical applications.
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