Development of a highly sensitive chemiluminescence enzyme immunoassay using enhanced luminol as substrate.
Xiaoqi Tao, Wenjun Wang, Zhanhui Wang, Xingyuan Cao, Jinghui Zhu, Lanlan Niu, Xiaoping Wu, Haiyang Jiang, Jianzhong Shen
Index: Luminescence 29(4) , 301-6, (2014)
Full Text: HTML
Abstract
In this study, a high sensitivity chemiluminescence enzyme immunoassay (CLEIA) based on novel enhancers was developed. Under optimal conditions, we developed an enhanced chemiluminescence reaction (ECR) catalyzed by horseradish peroxidase (HRP-C) in the presence of 3-(10'-phenothiazinyl) propane-1-sulfonate (SPTZ) and 4-morpholinopyridine (MORP) as enhancers. The limit of detection of the newly prepared chemiluminescent cocktail for HRP was 0.33 pg/well, which is lower than that of commercial Super Signal substrate. The results showed that this novel chemiluminescent cocktail can significantly increase the light output of HRP-catalyzed ECR, which can be translated into a corresponding improvement in sensitivity. Similar improvements were observed in CLEIA for the determination of chloramphenicol in milk. In addition, the ECR of N-azoles as secondary enhancer was also presented.Copyright © 2013 John Wiley & Sons, Ltd.
Related Compounds
Related Articles:
2015-08-18
[Anal. Chem. 87 , 8394-8, (2015)]
1-Alkyl-4-dialkylaminopyridinium halides as phase-transfer catalysts in dichlorocarbene reactions. Kupetis GK, et al.
[Monatsh. Chem 133(3) , 313-321, (2002)]
Concomitant morpholine ring contraction and pyridine lithiation in 4-morpholinopyridine: straightforward access to N-pyridyl oxazolidines. Gros PC, et al.
[Tetrahedron Lett. 49(32) , 4717-4719, (2008)]