Quantitative determination of calcium ions by means of enhanced fluorescence of silver nanocluster complex
Quantitative determination of calcium ions by means of enhanced fluorescence of silver nanocluster complex
复制标题
银纳米团簇复合物增强荧光定量测定钙离子
DOI：
10.1039/c6ay02477g
复制
发表时间：
2017-01-07
影响因子：
3.1
通讯作者：
Huang, Wenxue
中科院分区：
文献类型：
--
作者：
Lu, Liang;An, Xueqin;Huang, Wenxue
提出了一种简单、绿色的荧光银纳米团簇-纳米粒子复合物（AgNCs-AgNPs）的合成方法。该方法以氢气为还原剂，聚丙烯酸钠为软模板，在室温下将Ag+还原形成AgNCs-AgNPs。 AgNCs-AgNPs具有较强的荧光性，且荧光特性对Ca2+具有高灵敏度和优异的选择性。基于荧光增强的方法首次应用于Ca2+的定量测定。该方法具有宽线性响应、优异的选择性和高灵敏度，为生物系统中Ca2+的定量测定提供了潜在的候选方法。
A simple and green method for the synthesis of fluorescent silver nanocluster-nanoparticle complexes (AgNCs-AgNPs) is presented. In this method, Ag+ was reduced to form AgNCs-AgNPs using hydrogen as the reductant and sodium polyacrylate as a soft template at room temperature. The AgNCs-AgNPs possess strong fluorescence, and the fluorescence property has high sensitivity and excellent selectivity to Ca2+. An approach based on the enhancement of fluorescence was firstly applied for the quantitative determination of Ca2+. The approach displays a wide linear response, excellent selectivity and high sensitivity, and provides a potential candidate for the quantitative determination of Ca2+ in biological systems.