کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
868627 | 909810 | 2010 | 4 صفحه PDF | دانلود رایگان |
The development of a screen-printed strip-based amperometric biosensor for the determination of myeloperoxidase (MPO) levels is reported. The biosensor utilizes 3,3′,5,5′-tetramethylbenzidine (TMB) as a redox mediator to enable high-sensitivity quantification of physiological levels of MPO. A multivariate parameter optimization was performed. Under the optimal conditions, physiological levels of MPO between 3 and 18 U/L were detected in both acetate buffer (pH 4.5) and human serum using flexible screen-printed electrodes (SPE). The potential interference generated by common serum-based electroactive compounds and a similar peroxidase enzyme was also investigated. The proposed detection methodology offers a simpler, more rapid, and cost-effective alternative to conventional MPO immunoassays, thereby leading to further development in point-of-care testing of acute cardiac events.
Journal: Biosensors and Bioelectronics - Volume 26, Issue 2, 15 October 2010, Pages 886–889