石墨烯
检出限
线性范围
材料科学
氧化物
生物传感器
热液循环
锌
纳米技术
化学工程
化学
色谱法
冶金
工程类
作者
Di Zhu,Huiyuan Ma,Qingfang Zhen,Jianjiao Xin,Lichao Tan,Chun-Jing Zhang,Xinming Wang,Boxin Xiao
标识
DOI:10.1016/j.apsusc.2020.146721
摘要
Epinephrine (EP) is a significant neurotransmitter, energizes and maintains the various body systems and plays a pivotal role in the response to stressful conditions of blood pressure and blood sugar level. Herein, a novel epinephrine sensor based on the hierarchical flower-like zinc oxide nanosheets (flower-like ZnO) embedded into three-dimensional ferrocene-functionalized graphene framework (3D [email protected]) was successfully prepared, using a facile route of one-pot in situ hydrothermal growth method. Benefiting from the unique structural advantages, meanwhile integrated with synergistic effect of components, the flower-like ZnO/3D [email protected] exhibits excellent sensing performance for epinephrine with a wide linear range of 0.02 to 216 μM, a low detection limit of 0.0093 μM, high anti-interference and good cyclic stability. Interestingly, it is unexpectedly found that the flower-like ZnO/3D [email protected] has sensing ability for EP’s oxidized derivative (QA) during the oxidation process of EP, along with a linear range of 0.192 to 527 μM and a detection limit of 0.1 μM for QA. More importantly, acceptable recovery obtained from the real sample test, confirming the feasibility of this biosensor for practical application.
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