Simple, Fast, and Sensitive detection of artemisinin in human serum and Artemisia annua using microsensor array coupled with electrochemiluminescent imaging technique

作     者：Tang, Xiao-Chong Xiao, Yi Li, Ping Qi, Lian-Wen 

作者机构：China Pharmaceut Univ State Key Lab Nat Med Nanjing 210009 Jiangsu Peoples R China Hunan Normal Univ Sch Med Dept Pharm Key Lab Study & Discovery Small Targeted Mol Huna Changsha 410013 Hunan Peoples R China 

出 版 物：《TALANTA》 (塔兰塔)

年 卷 期：2019年第196卷

页      面：124-130页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070302[理学-分析化学] 0703[理学-化学] 

基　　金：National Science Fund of China for Distinguished Young Scholars National Natural Science Foundation of China 

主　　题：Artemisinin Electochemiluminescence Microsensor array Human serum Artemisia annua 

摘      要：Artemisinin is an important frontline antimalarial. Fast, accurate detection of artemisinin in human serum is of importance in monitoring its clinical pharmaceutical effect. In this work, a strategy using microsensor array coupled with electrochemiluminescence (ECL) imaging technique was developed for detection of artemisinin. The microsensor array was constructed by integrating a patterned indium tin oxide glass plate with two perforated hydrophobic paper covers. By introducing the reactant of p-aminophenylboronic acid, luminol and artemisinin into the microsensor array, artemisinin would oxidize p-aminophenylboronic acid into p-aminophenol, a product which can efficiently inhibit the ECL of luminol. ECL signals decrease linearly with the increase of artemisinin. Based on the decreased ECL signal, artemisinin can be accurately detected. A good linearity (r = 0.994) was observed for artemisinin detection. The detection sensitivity is 0.48 mu M for artemisinin. The detection selectivity and stability were also investigated. Results show that the present method shows a good selectivity and stability towards artemisinin detection. To evaluate the applicability of the present strategy for detecting artemisinin in real samples, the artemisinin content in human serum and Artemisia annua samples were analyzed. Results demonstrated that the present strategy shows excellent selectivity with high sensitivity towards artemisinin detection in real samples.