Center of Precision Analysis and Material Research, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan, ROC.
Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan, ROC.
Ultrason Sonochem. 2020 Jun;64:105043. doi: 10.1016/j.ultsonch.2020.105043. Epub 2020 Feb 22.
The sonochemical methods have been used as a straight forward method for the synthesis of various composite materials, including the transition metal dichalcogenide composites. In the present work, we report a simple sonochemical synthesis of CuS nanoplates decorated partially reduced graphene oxide (PrGO) nanocomposite for the first time. The PrGO-CuS nanocomposite was synthesized using bath-sonication (frequency: 37 kHz; power: 150 W) of graphene oxide (GO), and CuS precursors at 80 °C for 60 min. The physicochemical characterization (FESEM, XRD, FTIR, and Raman spectroscopy) results confirmed the successful formation of CuS nanoplates on PrGO nanosheets. The as-synthesized PrGO-CuS nanocomposite was further utilized for electroanalysis of dopamine neurotransmitter. The obtained electroanalytical results revealed that PrGO-CuS nanocomposite has superior electrochemical activity towards dopamine than those obtained for GO, CuS, and GO-CuS composite. The fabricated biosensor shows a lower limit of detection (0.022 µM) with a more comprehensive linear response range (0.1-155.1 µM) for the detection of dopamine. Moreover, the PrGO-CuS nanocomposite electrode was successfully used for the detection of dopamine in bovine serum albumin.
超声化学方法已被用作合成各种复合材料的一种直接方法，包括过渡金属二卤化物复合材料。在本工作中，我们首次报道了一种简单的超声化学合成 CuS 纳米板部分还原氧化石墨烯（PrGO）纳米复合材料的方法。PrGO-CuS 纳米复合材料是通过浴超声（频率：37 kHz；功率：150 W）GO 和 CuS 前体在 80°C 下反应 60 分钟制得的。物理化学特性（FESEM、XRD、FTIR 和拉曼光谱）结果证实了 CuS 纳米板成功地在 PrGO 纳米片上形成。所合成的 PrGO-CuS 纳米复合材料进一步用于多巴胺神经递质的电化学分析。所获得的电化学分析结果表明，与 GO、CuS 和 GO-CuS 复合材料相比，PrGO-CuS 纳米复合材料对多巴胺具有更高的电化学活性。所制备的生物传感器对多巴胺的检测具有更低的检测限（0.022 µM）和更全面的线性响应范围（0.1-155.1 µM）。此外，PrGO-CuS 纳米复合材料电极成功地用于牛血清白蛋白中多巴胺的检测。
