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Sensitive and Selective Electrochemical Determination of L‐Cysteine Based on Cerium Oxide Nanofibers Modified Screen Printed Carbon Electrode

机译:基于氧化铈纳米纤维改性筛网印刷碳电极的敏感与选择性电化学测定L-半胱氨酸

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Abstract > A novel L‐cysteine (CysH) electrochemical sensor based on CeO <sub>2</sub> nanofibers (NFs) modified screen printed carbon electrodes (SPCEs) was developed. The morphology and the structure of the as‐prepared CeO <sub>2</sub> NFs were first characterized using scanning electron microscopy (SEM) and X‐ray diffraction pattern (XRD), respectively. The electrochemical and electrocatalytic performances of the CeO <sub>2</sub> NFs modified SPCEs were then evaluated using cyclic voltammetry and amperometry. Experimental results showed that the CeO <sub>2</sub> NFs modified SPCEs possess excellent electrocatalytic activity toward the detection of CysH. Specifically, the developed electrochemical sensor demonstrated a high sensitivity of 120?μA?mM ?1 ?cm ?2 , a low detection limit of 20?nM (signal to noise ratio of 3) and a wide linear range up to 200?μM for the determination of CysH, which are among the best values reported in literature. In addition, good selectivity and outstanding intra‐ and inter‐electrode reproducibility have also been observed. Furthermore, the developed CysH sensor was applied to detect CysH spiked into human serum samples with remarkable accuracy. All these features indicate that CeO <sub>2</sub> NFs hold great promise in the development of high performance electrochemical sensor for CysH. </abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> <div class="translation abstracttxt"> <span class="zhankaihshouqi fivelineshidden" id="abstract"> <span>机译:</span><Abstract Type =“main”XML:Lang =“en”> <标题类型=“main”>抽象</ title> >基于CEO <Sub> 2的新型L-Cysteine(Cysh)电化学传感器</亚叶片(NFS)改性筛网印刷碳电极(SPCES)是开发的。首先使用扫描电子显微镜(SEM)和X射线衍射图案(XRD)来表征以制备的CEO <Sub> 2 </ sub> NFS的形态和结构。然后使用循环伏安法和安培测定评估CEO <Sub> 2 </ sub> NFS改性SPCE的电化学和电催化性能。实验结果表明,CEO <Sub> 2 </ sub> NFS改性SPCES对CYSH检测具有优异的电催化活性。具体地,所开发的电化学传感器的高灵敏度为120?μAΩΩ·mm Δ1</ sup> cm 2 </ sup>,低检测限为20?nm(信噪比3)和宽线性范围高达200Ωμm,用于测定Cysh,这是文献中报告的最佳值之一。此外,还观察到良好的选择性和突出的内部和电极间再现性。此外,施用了开发的CySH传感器以检测Cysh掺入人血清样品中,具有显着的精度。所有这些功能表明,CEO <Sub> 2 </ Sub> NFS在Cysh高性能电化学传感器的开发中保持了很大的承诺。 </ p> </ abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> </div> <div class="record"> <h2 class="all_title" id="enpatent33" >著录项</h2> <ul> <li> <span class="lefttit">来源</span> <div style="width: 86%;vertical-align: text-top;display: inline-block;"> <a href='/journal-foreign-22546/'>《Electroanalysis》</a> <b style="margin: 0 2px;">|</b><span>2018年第6期</span><b style="margin: 0 2px;">|</b><span>共7页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Cao Fei&option=202" target="_blank" rel="nofollow">Cao Fei;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Dong Qiuchen&option=202" target="_blank" rel="nofollow">Dong Qiuchen;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Li Caolong&option=202" target="_blank" rel="nofollow">Li Caolong;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Kwak Dongwook&option=202" target="_blank" rel="nofollow">Kwak Dongwook;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Huang Yikun&option=202" target="_blank" rel="nofollow">Huang Yikun;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Song Donghui&option=202" target="_blank" rel="nofollow">Song Donghui;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Lei Yu&option=202" target="_blank" rel="nofollow">Lei Yu;</a> </p> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zkzz" style="display: none;">展开▼</span> </div> </li> <li> <div style="display: flex;"> <span class="lefttit">作者单位</span> <div style="position: relative;margin-left: 3px;max-width: 639px;"> <div class="threelineshidden zhankaihshouqi" id="fOrgthree"> <p>Key Laboratory of Biomedical Functional Materials School of SciencesChina Pharmaceutical UniversityNanjing 211198 China;</p> <p>Department of Biomedical EngineeringUniversity of ConnecticutStorrs CT 06269 USA;</p> <p>Key Laboratory of Biomedical Functional Materials School of SciencesChina Pharmaceutical UniversityNanjing 211198 China;</p> <p>Department of Materials Science and EngineeringUniversity of Connecticut97 North Eagleville Road Storrs Connecticut 06269 USA;</p> <p>Department of Biomedical EngineeringUniversity of ConnecticutStorrs CT 06269 USA;</p> <p>Department of Biomedical EngineeringUniversity of ConnecticutStorrs CT 06269 USA;</p> <p>Department of Chemical and Biomolecular EngineeringUniversity of ConnecticutStorrs CT 06269 USA;</p> </div> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zhdw" style="display: none;">展开▼</span> </div> </div> </li> <li > <span class="lefttit">收录信息</span> <span style="width: 86%;vertical-align: text-top;display: inline-block;"></span> </li> <li> <span class="lefttit">原文格式</span> <span>PDF</span> </li> <li> <span class="lefttit">正文语种</span> <span>eng</span> </li> <li> <span class="lefttit">中图分类</span> <span><a href="https://www.zhangqiaokeyan.com/clc/4817.html" title="电化学、电解、磁化学">电化学、电解、磁化学;</a></span> </li> <li class="antistop"> <span class="lefttit">关键词</span> <p style="width: 86%;vertical-align: text-top;"> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=CeO 2 nanofibers&option=203" rel="nofollow">CeO 2 nanofibers;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=electrocatalytic oxidation&option=203" rel="nofollow">electrocatalytic oxidation;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=L-cysteine&option=203" rel="nofollow">L-cysteine;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=electrochemical sensor&option=203" rel="nofollow">electrochemical sensor;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=electrospinning&option=203" rel="nofollow">electrospinning;</a> </p> <div class="translation"> 机译:CEO 2纳米纤维;电催化氧化;L-半胱氨酸;电化学传感器;静电纺丝; </div> </li> </ul> </div> </div> <div class="literature cardcommon" id="literaturereference" style="display:none"> <div class="similarity "> <h3 class="all_title" id="enpatent111">引文网络</h3> <div class="referencetab clearfix"> <ul id="referencedaohang"> <li dataid="referenceul">参考文献</li> <li dataid="citationul">引证文献</li> <li dataid="commonreferenceul">共引文献</li> <li dataid="commoncitationul">同被引文献</li> <li dataid="tworeferenceul">二级参考文献</li> <li dataid="twocitationul">二级引证文献</li> </ul> </div> <div class="reference_details" id="referenceList"> <ul id="referenceul"></ul> <ul id="citationul"></ul> <ul id="commonreferenceul"></ul> <ul id="commoncitationul"></ul> <ul id="tworeferenceul"></ul> <ul id="twocitationul"></ul> </div> </div> </div> <div class="literature cardcommon"> <div class="similarity "> <h3 class="all_title" id="enpatent66">相似文献</h3> <div class="similaritytab clearfix"> <ul> <li class="active" >外文文献</li> <li >中文文献</li> <li >专利</li> </ul> </div> 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<span>机译:电化学方法测定含水样品中的总有机碳,涉及通过载气将二氧化碳引导至检测器并选择性地量化二氧化碳,其中气体中包含氧气和水的混合物 </span> </p> </li> <li> <div> <b>4. </b><a class="enjiyixqcontent" href="/patent-detail/06130417755199.html">Process of modification of the electrode printed ink, carbon ink printed modified electrode, carbon electrode modified use of printed ink, carbon eletroquu00cdmico biosensor system, the use of biosensor system eletroquu00cdmico</a> <b>[P]</b> . <span> 外国专利: <!-- --> BR102012021218A2 </span> <span> . 2014-06-10</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译:电极印刷油墨的改性过程,碳油墨印刷的改性电极,碳电极改性的印刷油墨使用,碳电极生物传感器系统,生物传感器系统生物传感器使用 </span> </p> </li> <li> <div> <b>5. </b><a class="enjiyixqcontent" href="/patent-detail/06130425560361.html">Cerium-modified doped strontium titanate compositions for solid oxide fuel cell anodes and electrodes for other electrochemical devices</a> <b>[P]</b> . 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