A facile synthesis of nontoxic luminescent carbon dots for detection of chromium and iron in real water sample and bio‐imaging

摘要

Abstract > In this study, we have reported the synthesis of luminescent carbon dots (CDs) from indigenous potato sources by simple heating reactions. The as‐synthesized CDs exhibited an average size of ~?5.97?nm with a quantum yield (QY) of 6.08%. Furthermore, the CDs possessed high water‐solubility, possibly due to the presence of ─COOH and ─OH groups on their surfaces. The quenching of luminescence of the CDs specifically by Cr 6+ and Fe 3+ ions was used to detect chromium and iron in the water sample. The minimum limit of detection (LOD) for Cr 6+ and Fe 3+ ions was found to be 0.012?μM and 0.000549?μM, respectively, in a linear range of 0.5 μM‐100?μM and 0.5 μM‐5 μM for Cr 6+ and Fe 3+ , respectively, which was well below the concentration specified by WHO. We used our sensing system to detect the metal ions in water from the Brahmaputra River as well as in tannery water. In addition, the MTT‐based cell viability experiments showed that the CDs were nontoxic within 200?μg/mL. High quantum yield and the easy uptake of CDs enabled the quick labelling of cytoplasm of the HeLa cells, which can be further attributed to bioimaging 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”XML：Lang =“en”> <标题类型=“main”>抽象</ title> > 在这项研究中，我们通过简单的加热反应报道了从土着土豆盐来源的发光碳点（CDS）的合成。合成的CDS表现出平均大小的~~~~.97？NM，量子产率（QY）为6.08％。此外，CD具有高水溶性，可能是由于其表面上存在α-β和─OH基团的存在。 CR的CDS的发光淬火 6 + </ sup> 和fe. 3 + </ sup> 离子用于检测水样中的铬和铁。 CR的最小检测限（LOD） 6 + </ sup> 和fe. 3 + </ sup> 离子分别在0.5μm-100？μm和0.5μm-5μm的线性范围内分别为0.012Ωμm和0.000549ΩΩμm。 6 + </ sup> 和fe. 3 + </ sup> 分别远低于谁指定的浓度。我们利用传感系统检测来自Brahmaputra河以及Tannery水中的水中的金属离子。此外，基于MTT的细胞活力实验表明，CD在200μg/ ml内的无毒。高量子产量和CD的易摄取使HeLa细胞的细胞质的快速标记，这可以进一步归因于生物体积应用。 </ p> </摘要> </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-30631/'>《The Canadian Journal of Chemical Engineering》</a> <b style="margin: 0 2px;">|</b><span>2020年第1期</span><b style="margin: 0 2px;">|</b><span>共11页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> </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"> </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/238.html" title="化学工业">化学工业;</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=bioimaging&option=203" rel="nofollow">bioimaging;</a> <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=chromium‐iron sensing&option=203" rel="nofollow">chromium‐iron sensing;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=photoluminescence&option=203" rel="nofollow">photoluminescence;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=quantum yield&option=203" rel="nofollow">quantum yield;</a> </p> <div class="translation"> 机译：生物分析;碳点;铬 - 铁感应;光致发光;量子产量; </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 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href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=王芳&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,王芳</a> <span> <a href="/conference-cn-22801/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 第四届海峡两岸分析化学学术会议 </a> <span> <span> . 2006</span> </span> </div> </li> <li> <div> <b>7. </b><a class="enjiyixqcontent" href="/academic-degree-domestic_mphd_thesis/020315878703.html">新型碳点的合成及其在水样分析和生物成像方面的应用</a> <b>[A] </b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=田敏&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 田敏</a> <span> . 2020</span> </span> </div> </li> </ul> <ul style="display: none;"> <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/patent-detail/061204001820.html">一种同时合成亲、疏水碳点的方法及其在检测Au<Sup>3+</Sup>和制备白光发光二极管中的应用</a> <b>[P]</b> . <span> 中国专利： CN108410455B </span> <span> . 2020.09.15</span> </div> </li> <li> <div> <b>2. </b><a class="enjiyixqcontent" href="/patent-detail/06120110903202.html">一种同时合成亲、疏水碳点的方法及其在检测Au<Sup>3+</Sup>和制备白光发光二极管中的应用</a> <b>[P]</b> . <span> 中国专利： CN108410455A </span> <span> . 2018-08-17</span> </div> </li> <li> <div> <b>3. </b><a class="enjiyixqcontent" href="/patent-detail/06130406665333.html">QUICK AND LOW COST SIMULTANEOUS SYNTHESIS OF SULPHUR DOPED CARBON DOTS (S-C-DOTS) FOR THE DETECTION OF FE3+ IONS AND ACTIVED CARBON (AC) FOR DYE ADSORPTION IN HIGH ACID ENVIRONMENT BY SIMPLE ACIDIC CARBONIZATIO OF SUCROSE.</a> <b>[P]</b> . <span> 外国专利：  IN201721041508A </span> <span> . 2017-12-22</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：快速，低成本同时合成硫掺杂碳点（S-C-DO），用于通过简单的蔗糖酸性碳氮化合物检测高酸性环境中的染料吸附中的Fe3 +离子和活性碳（AC）。 </span> </p> </li> <li> <div> <b>4. </b><a class="enjiyixqcontent" href="/patent-detail/06130491865311.html">Process for the removal of cobalt - and at least one other metal-carbonyl, for example, iron -, nickel -, chromium - or molybdenum - carbonyl, from primaerprodukten - of the oxo synthesis</a> <b>[P]</b> . <span> 外国专利：  DE1036244B </span> <span> . 1958-08-14</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：脱除羰基合成的钴-和至少一种其他羰基金属，例如铁-，镍-，铬-或钼-羰基的羰基合成方法 </span> </p> </li> <li> <div> <b>5. </b><a class="enjiyixqcontent" href="/patent-detail/06130491865312.html">process for removal of cobalt and at least one other metallcarbonyls, such as iron, nickel, chromium or molybdaen - carbonyl, etc., from primaerprodukten of oxo synthesis</a> <b>[P]</b> . <span> 外国专利：  DE000001036244A </span> <span> . 1958-08-14</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> 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