Nanocomposites Fe2O3/PNR loaded partially reduced rGO/GCE as an electrochemical probe for selective determination of uric acid and dopamine

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Journal of Materials Research Pub Date : 2024-09-11 DOI:10.1557/s43578-024-01411-8

Xinxin Qiao, Ruihan Bian, Shu Li, Jialei Zhu, Fuqin Wang, Chang Liu

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Abstract

In the paper, a high-performance electrode was reported for the determination of uric acid (UA) and dopamine (DA) by loading nanocomposites Fe₂O₃/poly-neutral red (PNR)/partially reduced graphene oxide (rGO) on glassy carbon electrode (GCE). The nanocomposites Fe₂O₃/PNR/rGO were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared spectrometer (FTIR), and electrochemical impedance spectroscopy (EIS). Under the optimized condition, the peak currents of UA and DA showed good linear relationships with their concentrations in the range of 1 × 10^–6 to 1 × 10^–3 mol L⁻¹ and 3 × 10^–7 to 9 × 10^–5 mol L⁻¹, respectively. The recovery rates were 93.0–102.0% and 99.2–104.6% for detecting DA from medical injections and human specimens, including urine and serum, respectively, 95.5–105.0% for UA from urine and serum samples. Obviously, this Fe₂O₃/PNR/rGO/GCE is expected to be used in production quality control and clinical test.

Graphical abstract

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负载部分还原 rGO/GCE 的纳米复合材料 Fe2O3/PNR 作为电化学探针，用于选择性测定尿酸和多巴胺

本文报道了在玻璃碳电极（GCE）上负载纳米复合材料 Fe2O3/聚中性红（PNR）/部分还原氧化石墨烯（rGO），用于测定尿酸（UA）和多巴胺（DA）的高性能电极。扫描电子显微镜（SEM）、X 射线衍射（XRD）、傅立叶变换红外光谱仪（FTIR）和电化学阻抗光谱（EIS）对 Fe2O3/PNR/rGO 纳米复合材料进行了表征。在优化条件下，UA 和 DA 的峰值电流分别在 1 × 10-6 至 1 × 10-3 mol L-1 和 3 × 10-7 至 9 × 10-5 mol L-1 的浓度范围内呈现出良好的线性关系。从医疗注射液和人体样本（包括尿液和血清）中检测 DA 的回收率分别为 93.0-102.0% 和 99.2-104.6%，从尿液和血清样本中检测 UA 的回收率为 95.5-105.0%。显然，这种Fe2O3/PNR/rGO/GCE有望用于生产质量控制和临床检测。

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来源期刊

Journal of Materials Research 工程技术-材料科学：综合

CiteScore

4.50

自引率

3.70%

发文量

362

审稿时长

2.8 months

期刊介绍： Journal of Materials Research (JMR) publishes the latest advances about the creation of new materials and materials with novel functionalities, fundamental understanding of processes that control the response of materials, and development of materials with significant performance improvements relative to state of the art materials. JMR welcomes papers that highlight novel processing techniques, the application and development of new analytical tools, and interpretation of fundamental materials science to achieve enhanced materials properties and uses. Materials research papers in the following topical areas are welcome. • Novel materials discovery • Electronic, photonic and magnetic materials • Energy Conversion and storage materials • New thermal and structural materials • Soft materials • Biomaterials and related topics • Nanoscale science and technology • Advances in materials characterization methods and techniques • Computational materials science, modeling and theory

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