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Integrating MXene/MWCNTs into aptasensor capable of ultrasensitive quantification of cTnI towards the diagnosis of acute myocardial infarction

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Abstract

The development of a pragmatic biosensor for diagnosing acute myocardial infarction (AMI) is of paramount significance. However, the detection of cardiac Troponin I (cTnI) presents formidable challenges owing to the intricate composition and scant concentration of cTnI in clinical samples. Therefore, we propose an innovative approach employing an aptamer biosensor predicated on MXene/multi-wall carbon nanotubes (MWCNTs) to discern cTnI. By integrating the MXene/MWCNTs nanomaterial, our aptasensor manifests remarkable amplification effects, thereby enabling an extensive detection range spanning from 10 to 106 pg/mL, while attaining an unparalleled detection sensitivity with an exceptionally low limit of 6.21 pg/mL. Furthermore, our aptasensor exhibits favourable selectivity, reproducibility, and stability. Moreover, our aptasensor showcases a robust clinical correlation equation of y = 1.202x + 0.0147, accompanied by an R2 value of 0.9797. A notable p-value discrepancy is observed between the AMI and healthy control groups. Remarkably, the area under the curve (AUC) achieved amounts to 0.981, with a sensitivity of 0.938 and specificity of 0.923. These outstanding attributes, coupled with its exceptional clinical performance, position our aptasensor as the optimal choice for the practical monitoring of acute myocardial infarction (AMI) disease.

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Acknowledgements

This project is funded by the Z202120 (Wuxi Health Commission) and M202140 (Wuxi Health Commission).

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Correspondence to Zhang Hua.

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On behalf of all authors, the corresponding author states that there is no conflict of interest.

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The Ethics Committee of Jiangyin People's Hospital approved this project (No:2021-039).

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Jinsong, T., Jin, H., Weizhang, L. et al. Integrating MXene/MWCNTs into aptasensor capable of ultrasensitive quantification of cTnI towards the diagnosis of acute myocardial infarction. Chem. Pap. 78, 3205–3212 (2024). https://doi.org/10.1007/s11696-024-03304-w

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  • DOI: https://doi.org/10.1007/s11696-024-03304-w

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