Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 282, Issue -, Pages 309-316Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2018.11.074
Keywords
Acute myocardial infarction; Myoglobin; Upconversion nanoparticles; Lateral flow assay; Point of care assay
Funding
- Fundamental Research Funds for the Central Universities, China [BRETIV.201503, AUGA5710052614]
- National Natural Science Foundation of China [51672061]
- Guangzhou Science and Technology Project [805161033022]
Ask authors/readers for more resources
Reliable detection and quantification of myoglobin (Mb) in blood plasma is of significance for clinical diagnosis and management of acute myocardial infarction (AMI). Here, we describe a homemade platform combining efficient core-shell upconversion nanoparticles (UCNPs) and lateral flow assay (LFA) for ultrasensitive and specific fluorescence ratiometric evaluation of Mb in clinical blood samples. After a systematic optimization, this platform was able to reach a limit of detection as low as 0.21 ng/ml, a linear range of 0.5-400 ng/ml, a recovery rate of 90.6-110.5%, an inter-assay coefficient of variation (CV) of 3.0-6.2%, an infra-assay CV of 8.8-13.6%, and a detection time of 10 min. Furthermore, the acquired concentration results were unresponsive to the interference of high-bilirubin, high-lipids, and hemolysis, and a range of other biomarkers (CRP, PCT, and BSA), substantiating robust Mb-specific detection. Importantly, the platform showed a significant linear correlation (R-2 = 0.9484) with clinically used Abbott Chemiluminescence detection system (CLDS) on evaluation of Mb concentration in 50 clinical human blood plasmas. The achievement of rapid, sensitive and reliable quantification of Mb in clinical plasma promises the prevalent use of the described platform for on-field diagnosis or rule-out of AMI in clinical practice.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available