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Fullerene Black Modified Screen Printed Electrodes for the Quantification of Acetaminophen and Guanine
Electroanalysis ( IF 3 ) Pub Date : 2017-10-19 , DOI: 10.1002/elan.201700426
Federica Valentini 1 , Elena Ciambella 1 , Franco Cataldo 2 , Andrea Calcaterra 3 , Luca Menegatti 4 , Maurizio Talamo 5
Affiliation  

Fullerene Black (FB) and Extracted Fullerene Black (EFB) were used in modified screen-printed electrodes producing electrochemical transducers (FB-SPEs and EFB-SPEs). A complete electrochemical study was performed and the best results are obtained working with FB-SPEs, especially in terms of: 1. improved electron-transfer kinetic mechanisms and 2. sensitivity and selectivity toward Acetaminophen (Ac) and Guanine (G). These latter represent two important electro-active targets to quantify in medicine field application, because: Ac is a preferred alternative (as analgesic-antipyretic agent) to aspirin, particularly for patients who cannot tolerate aspirin; the oxidation signal of G is useful for the fabrication of emerging analytical tools, such as DNA chipsand user-friendly diagnostic devices. Ac and G are quantify by using FB-SPEs electrochemical devices, with an extended linearity (1–300 μM for Ac; 0.1–300 μM for G), an excellent sensitivity (2.82 μA μM−1 cm−2 in the case of Ac; and 0.183 μA μM−1 cm−2 in the case of G), a low detection limit (0.01 μM for Ac; 0.005 μM for G), a very good reproducibility (both: intra-; inter-electrodes reproducibility RSD % ranging from 0.3–0.5 for Ac; and 0.50–0.85 for G) and a very fast response time (6 s for Ac; 5 s in the case of G). In addition, high selectivity is obtained at FB-SPEs, meaning that the FB-SPEs electrochemical transducers are suitable to simultaneously quantify Ac and G in real samples, having several different (highly concentrated) interference.

中文翻译:

用于对乙酰氨基酚和鸟嘌呤定量的富勒烯黑色改性丝网印刷电极

富勒烯黑 (FB) 和萃取富勒烯黑 (EFB) 用于生产电化学换能器(FB-SPE 和 EFB-SPE)的改良丝网印刷电极。进行了完整的电化学研究,使用 FB-SPE 获得了最佳结果,尤其是在:1. 改进的电子转移动力学机制和 2. 对乙酰氨基酚 (Ac) 和鸟嘌呤 (G) 的灵敏度和选择性方面。后者代表了在医学领域应用中量化的两个重要的电活性目标,因为: Ac 是阿司匹林的首选替代品(作为镇痛解热剂),特别是对于不能耐受阿司匹林的患者;G 的氧化信号可用于制造新兴的分析工具,例如 DNA 芯片和用户友好的诊断设备。Ac 和 G 通过使用 FB-SPEs 电化学设备进行量化,具有扩展的线性(Ac 为 1-300 μM;G 为 0.1-300 μM),具有出色的灵敏度(Ac 为 2.82 μA μM-1 cm-2 ; 和 0.183 μA μM-1 cm-2(在 G 的情况下),检测限低(Ac 为 0.01 μM;G 为 0.005 μM),具有非常好的重现性(两者:内部;电极间重现性 RSD % 范围)从 0.3–0.5(Ac);0.50–0.85(G)和非常快的响应时间(Ac 为 6 秒;G 为 5 秒)。此外,在 FB-SPE 上获得了高选择性,这意味着 FB-SPE 电化学换能器适用于同时量化实际样品中的 Ac 和 G,具有几种不同的(高浓度)干扰。和 0.183 μA μM-1 cm-2(在 G 的情况下),检测限低(Ac 为 0.01 μM;G 为 0.005 μM),非常好的重现性(两者:内部;电极间重现性 RSD % 范围为Ac 为 0.3–0.5;G 为 0.50–0.85)和非常快的响应时间(Ac 为 6 秒;G 为 5 秒)。此外,在 FB-SPE 上获得了高选择性,这意味着 FB-SPE 电化学换能器适用于同时量化实际样品中的 Ac 和 G,具有几种不同的(高浓度)干扰。和 0.183 μA μM-1 cm-2(在 G 的情况下),检测限低(Ac 为 0.01 μM;G 为 0.005 μM),非常好的重现性(两者:内部;电极间重现性 RSD % 范围为Ac 为 0.3–0.5;G 为 0.50–0.85)和非常快的响应时间(Ac 为 6 秒;G 为 5 秒)。此外,在 FB-SPE 上获得了高选择性,这意味着 FB-SPE 电化学换能器适用于同时量化实际样品中的 Ac 和 G,具有几种不同的(高浓度)干扰。
更新日期:2017-10-19
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