基于HRP催化诱导金纳米棒形貌改变的碘离子检测研究  

Horseradish peroxidase( HRP) assisted colorimetric detection of I-based on the morphology transition of gold nanorods

作　　者：胥彦琪 

机构地区：[1]江西医学高等专科学校,江西上饶334000

出　　处：《化学研究与应用》2018年第1期133-136,共4页Chemical Research and Application

摘　　要：本文中,我们通过金纳米棒颜色的改变实现了对I-的可视化检测,在HRP酶催化的情况下,H_2O_2把I-的氧化为I_2,之后I_2会对金纳米棒进行刻蚀,使其纵向表面等离子体共振吸收峰发生蓝移,同时伴随颜色的改变,检测灵敏度达到了0.01μM。此方法简单便捷,同时实现了对实际样品水样中I-的检测。In this work,we designed a colorimetric sensor for the detection of l through the color change of gold nanorods. I could be oxidized to I： by H2O2 in the presence of HRP,which could cause the etching of gold nanorods and lead to a blue shift of the lon-gitudinal surface plasma resonance absorption peak accompanied with the color change from blue to red. The detection sensitivity reached to 0. 01 jxM. This method is simple and convenient,moreover,it realizes the analysis of I in water samples.Key words ： HRP ; gold nanorods ; I - ; blue shift

关 键 词：HRP 金纳米棒 I- 蓝移 

分 类 号：O614.12[理学—无机化学]