To reduce these statistics and the mortality rate, an early and accurate TB diagnosis is essential. According to the WHO, around 10.4 million new cases of tuberculosis are identified every year, with 1.8 million deaths. Tuberculosis (TB) has been a devastating human illness for thousands of years. This method was also applied to detect BPA in plastic products, showing good agreement with the values detected by HPLC-MS/MS. As a result, the constructed Tyr biosensor exhibited good analytical performance for BPA with a high sensitivity of 0.2569 A M⁻¹, a wide linear range from 12.5 nM to 3.68 μM, and a low detection limit of 0.10 nM (S/N = 3). With the aid of chitosan (Chit), an electrochemical tyrosinase (Tyr) biosensor based on was constructed on glassy carbon electrode This immobilization matrix possesses high conductivity, large active areas and a suitable biological microenvironment. Since PDA acts as a moderate reducing agent and an effective linker, AuNPs scatter well on RGO with controllable density, homogeneous size and uniform distribution. This hybrid was synthesized by in-situ growth of AuNPs induced by polydopamine (PDA) on RGO. Herein we report a facile electrochemical sensing strategy for ultrasensitive detection of BPA based on the hybrid of AuNPs decorated reduced graphene oxide (RGO). Bisphenol A (BPA) is one of the most prevalent environmental endocrine disrupting chemicals with potential estrogenic activity.
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