Polymer composite fluorescent hydrogel film based on nitrogen‐doped carbon dots and their application in the detection of Hg        <sup >2+2+        ions

Yu Shujuan; Chen Kuan; Wang Feng; Zhu Yongfei; Zhang Xuehong

摘要

Abstract > A simple microwave‐assisted solvothermal method was used to prepare fluorescent nitrogen‐doped carbon dots (N‐CDs) with high fluorescence quantum yield (79.63%) using citric acid and N ‐(2‐hydroxyethyl)ethylenediamine as starting materials. The PVAm‐g‐N‐CDs grafted products were synthesized by amide bond formation between the carboxylic groups of N‐CDs and amine groups of polyvinylamine (PVAm). Fluorescent hydrogel films (PVAm‐g‐N‐CDs/PAM) were synthesized by interpenetration polymer network polymerization of PVAm‐g‐N‐CDs and acrylamide (AM). When used for ion detection, we found that the fluorescence of the hydrogel films was clearly quenched by addition of Hg 2+ . Repeatability tests on using the hydrogel films for Hg 2+ detection showed that they could be applied at least three times. The PVAm‐g‐N‐CDs/PAM could serve as an effective fluorescent sensing platform for sensitive detection of Hg 2+ ions with a detection limit of 0.089?μmol/L. This work may offer a new approach for developing recoverable and sensitive N‐CDs‐based sensors for biological and environmental applications. </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”> <标题类型=“main”>抽象</ title> >一种简单的微波辅助溶剂热法，用于制备具有高荧光量子的荧光氮掺杂碳点（N-CD）使用柠檬酸和<I> N-（2-羟乙基）乙二胺作为原料的产率（79.63％）。 PVAM-G-N-CDS接枝产物通过氨基键在N-Cds和聚乙烯胺（PVAM）的胺基团之间的酰胺键形成合成。通过PVAM-G-N-Cds和丙烯酰胺（AM）的间隙聚合物网络聚合来合成荧光水凝胶膜（PVAM-G-N-CDS / PAM）。当用于离子检测时，我们发现通过加入Hg 2 + / sup>清楚地淬灭水凝胶膜的荧光。使用用于Hg 2 + / sup>检测的水凝胶膜的可重复性试验表明它们可以至少施加三次。 PVAM-G-N-CDS / PAM可以用作有效的荧光传感平台，用于敏感检测Hg 2 + </ sup>离子，其检测限为0.089ΩΩμmol/ l。这项工作可以为生物和环境应用的生物和环境应用开发基于基于N-CDS的传感器的新方法。 </ 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-26441/'>《Luminescence: The journal of biological and chemical luminescence》</a> <b style="margin: 0 2px;">|</b><span>2017年第6期</span><b style="margin: 0 2px;">|</b><span>共8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=Yu Shujuan&option=202" target="_blank" rel="nofollow">Yu Shujuan;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Chen Kuan&option=202" target="_blank" rel="nofollow">Chen Kuan;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Wang Feng&option=202" target="_blank" rel="nofollow">Wang Feng;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Zhu Yongfei&option=202" target="_blank" rel="nofollow">Zhu Yongfei;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Zhang Xuehong&option=202" target="_blank" rel="nofollow">Zhang Xuehong;</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>School of Chemistry and Material ScienceGuangxi Teachers Education UniversityNanning People's Republic of China;</p> <p>School of Chemistry and Material ScienceGuangxi Teachers Education UniversityNanning People's Republic of China;</p> <p>School of Chemistry and Material ScienceGuangxi Teachers Education UniversityNanning People's Republic of China;</p> <p>School of Chemistry and Material ScienceGuangxi Teachers Education UniversityNanning People's Republic of China;</p> <p>School of Chemistry and Material ScienceGuangxi Teachers Education UniversityNanning People's Republic of China;</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/1345.html" title="生物光学">生物光学;</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=carbon dots&option=203" rel="nofollow">carbon dots;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Hg 2+&option=203" rel="nofollow">Hg 2+;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=hydrogel film&option=203" rel="nofollow">hydrogel film;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=ion detection&option=203" rel="nofollow">ion detection;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=polyvinylamine&option=203" rel="nofollow">polyvinylamine;</a> </p> <div class="translation"> 机译：碳点;Hg 2+;水凝胶膜;离子检测;聚乙烯胺; 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Polymer composite fluorescent hydrogel film based on nitrogen‐doped carbon dots and their application in the detection of Hg 2+2+ ions

摘要

Polymer composite fluorescent hydrogel film based on nitrogen‐doped carbon dots and their application in the detection of Hg ^{2+2+ ions}