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Novel Biomimic Crystalline Colloidal Array for Fast Detection of Trace Parathion
ACS Sensors ( IF 8.2 ) Pub Date : 2017-06-29 00:00:00 , DOI: 10.1021/acssensors.7b00281 Xihao Zhang 1 , Yanguang Cui 1 , Jialei Bai 1 , Zhiyong Sun 2 , Baoan Ning 1 , Shuang Li 1 , Jiang Wang 1 , Yuan Peng 1 , Zhixian Gao 1
ACS Sensors ( IF 8.2 ) Pub Date : 2017-06-29 00:00:00 , DOI: 10.1021/acssensors.7b00281 Xihao Zhang 1 , Yanguang Cui 1 , Jialei Bai 1 , Zhiyong Sun 2 , Baoan Ning 1 , Shuang Li 1 , Jiang Wang 1 , Yuan Peng 1 , Zhixian Gao 1
Affiliation
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A novel gold doped inverse opal photonic crystal (IO PC) was successfully fabricated with combination of molecularly imprinted technical for the fast determination of parathion. First, a closest silica array arrangement behaved as the 3D photonic crystal precursors to build the opal photonic crystal (O PC). Second, the parathion-containing polymeric solution with gold nanoparticles was drawn into the 3D array cracks. After polymerization, the well-designed O PC was treated with HF solution for the etching of the silica skeleton. Finally, the template parathion was removed and the Au-MIP IO PCs were obtained. The morphology of SiO2 and Au NPs was characterized by transmission electron microscopy (TEM), and the eluted influence of the IO PCs was monitored by scanning electron microscopy (SEM). The cross-linking effect was well optimized according to the best spectrum signal of parathion. The as-synthesized Au-MIP IO PCs displayed the specificity toward parathion and the selectivity to other competitive pesticide molecules. The response time was only 5 min, and the parathion could be well detected from real water samples. The recoveries were between 95.5% and 101.5%.
中文翻译：
快速检测痕量对硫磷的新型仿生晶体胶体阵列
结合分子印迹技术成功制备了新型金掺杂反蛋白石光子晶体（IO PC），用于快速测定对硫磷。首先，最接近的二氧化硅阵列排列充当3D光子晶体前体，以构建蛋白石光子晶体（O PC）。第二，将含对硫磷的聚合物溶液与金纳米颗粒一起拉入3D阵列裂缝中。聚合后，将设计良好的O PC用HF溶液处理，以蚀刻二氧化硅骨架。最后，除去模板对硫磷，获得Au-MIP IO PC。SiO 2的形态用透射电子显微镜（TEM）对金纳米颗粒进行了表征，并用扫描电子显微镜（SEM）监测了IO PCs的洗脱影响。根据对硫磷的最佳光谱信号，可以很好地优化交联效果。合成后的Au-MIP IO PC显示出对硫磷的特异性和对其他竞争性农药分子的选择性。响应时间仅为5分钟，并且可以从真实水样中很好地检测到对硫磷。回收率在95.5％和101.5％之间。
更新日期：2017-06-29
中文翻译：
快速检测痕量对硫磷的新型仿生晶体胶体阵列
结合分子印迹技术成功制备了新型金掺杂反蛋白石光子晶体（IO PC），用于快速测定对硫磷。首先，最接近的二氧化硅阵列排列充当3D光子晶体前体，以构建蛋白石光子晶体（O PC）。第二，将含对硫磷的聚合物溶液与金纳米颗粒一起拉入3D阵列裂缝中。聚合后，将设计良好的O PC用HF溶液处理，以蚀刻二氧化硅骨架。最后，除去模板对硫磷，获得Au-MIP IO PC。SiO 2的形态用透射电子显微镜（TEM）对金纳米颗粒进行了表征，并用扫描电子显微镜（SEM）监测了IO PCs的洗脱影响。根据对硫磷的最佳光谱信号，可以很好地优化交联效果。合成后的Au-MIP IO PC显示出对硫磷的特异性和对其他竞争性农药分子的选择性。响应时间仅为5分钟，并且可以从真实水样中很好地检测到对硫磷。回收率在95.5％和101.5％之间。
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