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Abstract: In this paper, we demonstrate the first use of BCNO nanoparticles (BCNO NPs) as a novel highly efficient fluorosensor for Cu2+ detection with high selectivity. The detection process is ultrafast and can be completed within 2min, and the detection limit is 0.1μM. We also show the practical use of this sensor for Cu2+ determination in real water samples. [Copyright &y& Elsevier]

Abstract: In this paper, a novel and highly sensitive DNA sensor based on biopolymer is presented. This polydopamine nanospheres-based sensing platform exhibits high selectivity and sensitivity with a detection limit of 5nM and the sensitivity of this sensing platform increases with increased temperature. [Copyright &y& Elsevier]

Abstract: The article reports on the microwave-assisted rapid green synthesis of photoluminescent carbon nanodots (C-dots) with diameters in the range of 1–4nm using flour as the carbon source. It suggests that the resultant C-dots exhibit high sensitivity and selectivity toward Hg2+ with a detection limit as low as 0.5nM and a linear range of 0.0005–0.01μM. The practical use of this system for Hg2+ determination in real lake water samples is also demonstrated successfully. [Copyright &y& Elsevier]