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Palladium nanoparticles entrapped in a self-supporting nanoporous gold wire as sensitive dopamine biosensor

机译：包裹在自支撑纳米多孔金丝中的钯纳米颗粒作为敏感的多巴胺生物传感器

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摘要

Traced dopamine (DA) detection is critical for the early diagnosis and prevention of some diseases such as Parkinson’s, Alzheimer and schizophrenia. In this research, a novel self-supporting three dimensional (3D) bicontinuous nanoporous electrochemical biosensor was developed for the detection of dopamine by Differential Pulse Voltammetry (DPV). This biosensor was fabricated by electrodepositing palladium nanoparticles (Pd) onto self-supporting nanoporous gold (NPG) wire. Because of the synergistic effects of the excellent catalytic activity of Pd and novel structure of NPG wire, the palladium nanoparticles decorated NPG (Pd/NPG) biosensor possess tremendous superiority in the detection of DA. The Pd/NPG wire biosensor exhibited high sensitivity of 1.19 μA μΜ⁻¹, broad detection range of 1–220 μM and low detection limit up to 1 μM. Besides, the proposed dopamine biosensor possessed good stability, reproducibility, reusability and selectivity. The response currents of detection in the fetal bovine serum were also close to the standard solutions. Therefore the Pd/NPG wire biosensor is promising to been used in clinic.

机译：痕量多巴胺（DA）检测对于早期诊断和预防某些疾病（例如帕金森氏症，阿尔茨海默氏症和精神分裂症）至关重要。在这项研究中，开发了一种新型的自支撑三维（3D）双连续纳米多孔电化学生物传感器，用于通过差分脉冲伏安法（DPV）检测多巴胺。该生物传感器是通过将钯纳米颗粒（Pd）电沉积到自支撑纳米多孔金（NPG）线上而制成的。由于钯的出色的催化活性和NPG线的新颖结构的协同作用，钯纳米粒子修饰的NPG（Pd / NPG）生物传感器在DA的检测中具有巨大的优势。 Pd / NPG线生物传感器的灵敏度高，为1.19μAμM^{-1 ，检测范围为1–220μM，检测限低至1μm。此外，所提出的多巴胺生物传感器具有良好的稳定性，可重复性，可重复使用性和选择性。胎牛血清中检测的响应电流也接近标准溶液。因此，Pd / NPG导线生物传感器有望用于临床。}

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期刊名称 Scientific Reports
作者
Xin Yi; Yuxuan Wu; Guoxin Tan; Peng Yu; Lei Zhou; Zhengnan Zhou; Junqi Chen; Zhengao Wang; Jinshan Pang; Chengyun Ning;
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年(卷),期 -1(7),-1
年度 -1
页码 7941
总页数 9
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机译：自支撑纳米多孔金电极中捕获的辣根过氧化物酶的直接电化学和生物电催化：改善固定化酶方向的新策略
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4. A NOVEL BIFUNCTIONAL GOLD-COATED MAGNETIC NANOPARTICLES BASED ON FERROCENE ELECTROCATALYTIC DOPAMINE BIOSENSOR [C] . Jianding QIU, Meng XIONG, Ruping LIANG . 2007

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机译：纳米球光刻：I.大面积银纳米颗粒阵列的制造和表征。二。银纳米粒子尺寸的电化学调节。三，银，金，钴，钯和铂纳米粒子的纳米粒子形状随尺寸变化。
6. A core-shell molybdenum nanoparticles entrapped f-MWCNTs hybrid nanostructured material based non-enzymatic biosensor for electrochemical detection of dopamine neurotransmitter in biological samples [O] . Murugan Keerthi, Gopal Boopathy, Shen-Ming Chen, -1

机译：基于核-壳钼纳米粒子的f-MWCNTs杂化纳米结构材料的非酶生物传感器用于电化学检测生物样品中的多巴胺神经递质
7. Palladium nanoparticles entrapped in a self-supporting nanoporous gold wire as sensitive dopamine biosensor [O] . Xin Yi, Yuxuan Wu, Guoxin Tan, 2017

机译：钯纳米粒子夹在自支撑纳米多孔金线中，如敏感的多巴胺生物传感器

Palladium nanoparticles entrapped in a self-supporting nanoporous gold wire as sensitive dopamine biosensor

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