卟啉纳米材料制备及在可视化传感器中的应用

Production of nano-porphyrin and application in a colorimetric sensor array system

在水/油体系中,利用表面活性剂辅助自组装制备出5,10,15,20-四苯基卟啉锌(ZnTPP)和5,10,15,20-四苯基卟啉钴(CoTPP)纳米材料,改变陈化时间制备多种形貌卟啉纳米材料,如纳米球、纳米棒和纳米片等。利用紫外-可见光谱和荧光光谱分析两种卟啉纳米材料的光学性质,ZnTPP纳米材料的荧光强度是其单体的4.5倍,具有良好光敏性。基于两种卟啉纳米材料构建可视化阵列芯片对挥发性气体己醛检测,卟啉纳米的响应度是它们单体的2倍。

Various self-assembled nanostructures of either nanospheres or nanorods of ZnTPP and CoTPP can be synthesized whereas the effect of aging time on the morphology of nanoporphyrin has been studied. The formed self-assembled nanostructures were investigated in solution via UV/Vis, fluorescence spectroscopy and SEM. A highly sensitive porphyrin based array volatile organic compound （VOC） sensor has been developed using nano- porphrin. In sensitive measurement of the porphyrin nanostructured material the strongly enhanced signal intensity is observed compared with a color difference map of the corresponding monomeric porphyrin.