Capped Mesoporous Silica Nanoparticles for the Selective and Sensitive Detection of Cyanide

Sayed Sameh El; Licchelli Maurizio; Martínez‐Má?ez Ramón; Sancenón Félix

摘要

Abstract > The development of easy and affordable methods for the detection of cyanide is of great significance due to the high toxicity of this anion and the potential risks associated with its pollution. Herein, optical detection of cyanide in water has been achieved by using a hybrid organic–inorganic nanomaterial. Mesoporous silica nanoparticles were loaded with [Ru(bipy) <sub>3</sub> ] 2+ , functionalized with macrocyclic nickel(II) complex subunits, and capped with a sterically hindering anion (hexametaphosphate). Cyanide selectively induces demetallation of nickel(II) complexes and the removal of capping anions from the silica surface, allowing the release of the dye and the consequent increase in fluorescence intensity. The response of the capped nanoparticles in aqueous solution is highly selective and sensitive towards cyanide with a limit of detection of 2?μ <sc>m</sc> . </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 XMLNS =“http://www.wiley.com/namespaces/wiley”type =“main”xml：lang =“en”> <title type =“main”>抽象</ title> >开发由于这种阴离子的高毒性和与其污染相关的潜在风险，氰化物的易于和实惠的方法具有重要意义。这里，通过使用杂合的有机 - 无机纳米材料实现了水中氰化物中的光学检测。用大环镍（II）复合亚基官能化的[Ru（Bipy）<sub> 3 / sup>] 2 + </ sup>，用甲状腺镍（II）复合亚基，并用空中阻塞阴离子（六偏磷酸盐）封装。氰化物选择性地诱导镍（II）络合物的破裂并从二氧化硅表面去除覆盖阴离子，允许释放染料和随后的荧光强度的增加。封端的纳米颗粒在水溶液中的响应是高度选择性和敏感的氰化物，其检测限为2ΩμS-m> m </ sc>。 </ 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-16161/'>《Chemistry, an Asian journal》</a> <b style="margin: 0 2px;">|</b><span>2017年第20期</span><b style="margin: 0 2px;">|</b><span>共5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=Sayed Sameh El&option=202" target="_blank" rel="nofollow">Sayed Sameh El;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Licchelli Maurizio&option=202" target="_blank" rel="nofollow">Licchelli Maurizio;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Martínez‐Má?ez Ramón&option=202" target="_blank" rel="nofollow">Martínez‐Má?ez Ramón;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Sancenón Félix&option=202" target="_blank" rel="nofollow">Sancenón Félix;</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>Departamento de QuímicaUniversitat Politécnica de ValènciaCamino de Vera s/n 46022 Valencia Spain;</p> <p>Dipartimento di ChimicaUniversità di Paviavia Taramelli 12 I- 27100 Pavia Italy;</p> <p>Departamento de QuímicaUniversitat Politécnica de ValènciaCamino de Vera s/n 46022 Valencia Spain;</p> <p>Departamento de QuímicaUniversitat Politécnica de ValènciaCamino de Vera s/n 46022 Valencia Spain;</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/159.html" title="化学">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=cyanides&option=203" rel="nofollow">cyanides;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=hybrid materials&option=203" rel="nofollow">hybrid materials;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=macrocyclic ligands&option=203" rel="nofollow">macrocyclic ligands;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=mesoporous silica nanoparticles&option=203" rel="nofollow">mesoporous silica nanoparticles;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=optical detection&option=203" rel="nofollow">optical detection;</a> </p> <div class="translation"> 机译：氰化物;杂交材料;宏环配体;中孔二氧化硅纳米颗粒;光学检测; </div> </li> </ul> </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> <div class="similarity_details"> <ul > <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/journal-foreign-detail/0704022087097.html">Capped Mesoporous Silica Nanoparticles for the Selective and Sensitive Detection of Cyanide</a> <b>[J]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Sayed Sameh El&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Sayed Sameh El,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Licchelli Maurizio&option=202" target="_blank" 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