Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 371, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2022.132597
Keywords
Biotin-streptavidin system; Multiplex lateral flow immunoassay; Ovarian cancer; Shuriken-like molecule
Funding
- National Key Research and Devel-opment Program of China
- National Natural Science Foundation of China
- [2017YFA0700404]
- [22174015]
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In this study, a novel BDMSNs-MLFIA method was developed for simultaneous detection of ovarian cancer biomarkers CA125 and HE4, showing high accuracy and sensitivity. This method is of great significance for improving the accuracy of ovarian cancer diagnosis and the survival rate of patients.
The more accurate the diagnosis of ovarian cancer, the higher the survival rate of patients. We report here the first preparation of biotin-enriched dendritic mesoporous silica nanoparticles (BDMSNs) and successfully com-bined it with multiplex lateral flow immunoassay (MLFIA) for simultaneous detection of ovarian cancer bio-markers (CA125 and HE4). Benefiting from the aggregation-induced emission property of the newly synthesized shuriken-like molecules and the high affinity of biotin-streptavidin system, BDMSNs can be utilized as fluorescent signal reporters and have robust antibody enrichment properties. The linear ranges, limits of detection, and accuracies of simultaneous detection of CA125 and HE4 were evaluated by using BDMSNs-MLFIA. The results displayed that the corresponding limits of detection were 5 U/mL and 5 pM, respectively; the coefficient of variation of intra-assay and inter-assay were both less than 15 %. Compared with commercial electro-chemiluminescence method, the clinical test results of BDMSNs-MLFIA have a correlation coefficient of more than 98%. BDMSNs-MLFIA initially explored the simultaneous detection of CA125 and HE4 in clinical human serum, greatly improved the practicability of LFIA and emphasizing its important role in precision medicine.
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