PDF全文下载:
201806002.pdf
文章编号: 16726987(2018)06001704; DOI: 10.16351/j.16726987.2018.06.002
张楠, 张晓茹, 何鹏*
(青岛科技大学 化学与分子工程学院;肿瘤标志物传感器分析重点实验室,山东 青岛 266042)
摘要: 利用聚T单链DNA为模板合成的荧光铜纳米粒子作为荧光探针,设计了一种简单、快速、灵敏的荧光生物传感方法用于乙酰胆碱酯酶活性的检测。验证了实验可行,对反应时间、硫代乙酰胆碱的浓度进行了优化,在最优条件下对乙酰胆碱酯酶的灵敏度进行了检测,检测限为0036 U·L-1,并证明了本实验具有良好的选择性。最后,探索了抑制剂浓度与体系荧光强度的关系,并且对比了他克林和加兰他敏抑制剂的抑制效率。
关键词: 荧光铜纳米粒子; 乙酰胆碱酯酶; 硫代乙酰胆碱
中图分类号: O 0657.3文献标志码: A
引用格式: 张楠, 张晓茹, 何鹏. 荧光铜纳米粒子检测乙酰胆碱酯酶活性\[J\]. 青岛科技大学学报(自然科学版), 2018, 39(6): 1720.
ZHANG Nan, ZHANG Xiaoru, HE Peng. Detection of acetylcholinesterase activity by fluorescent copper nanoparticles\[J\]. Journal of Qingdao University of Science and Technology(Natural Science Edition), 2018, 39(6): 1720.
Detection of Acetylcholinesterase Activity by
Fluorescent Copper Nanoparticles
ZHANG Nan, ZHANG Xiaoru, HE Peng
(College of Chemistry and Molecular Engineering; Key Laboratory of Sensor Analysis of Tumor Marker,
Ministry of Education, Qingdao University of Science and Technology, Qingdao 266042, China)
Abstract: A simple, rapid and sensitive fluorescence biosensor was developed for the detection of acetylcholinesterase activity using fluorescent copper nanoparticles synthesized by polyT singlestranded DNA as a fluorescent probe. It was proved that the experiment was feasible, the reaction time and the concentration of thioacetyl chloride were optimized. The sensitivity of acetylcholinesterase was tested under the optimal conditions. The detection limit was 0036 U · L-1 and it was proved that the experiment had good selectivity. Finally, the inhibitory efficiency of tacrine and galanthamine was compared.
Key words: fluorescent copper nanoparticles; acetylcholinesterase; thioacetylcholiner
收稿日期: 20170718
基金项目: 国家自然科学基金项目(21275003);山东省高校科技计划项目(J16LC10).
作者简介: 张楠(1992—),女,硕士研究生.*通信联系人.