Abstract
General anesthesia is significantly gaining prominence and becoming unavoidable in modern medicine. Since neuroprotein fluctuations are common during anesthetic procedures, it is essential to monitor protein levels to identify neuro-related issues. Tau protein fluctuations are often found in the anesthetic process, and higher levels of tau are highly related to various neuro-related issues. Researchers are focusing on monitoring tau levels during and after anesthesia. This research has developed a high-sensitive tau biosensor on a gold nanomaterial-modified interdigitated electrode, measured at 0–2 V on a dual-probe station. Aptamer and antibody were used as capture and detection molecules, and a biotin-streptavidin strategy was employed to attach a higher number of aptamers on the electrode. These immobilized aptamers recognize the tau protein and form a sandwich with antibodies, lowering the detection of tau protein to 1 fM on a linear regression from 0.001 to 100 pM (y = 2.0651x - 1.3813, R2 = 0.987). Further, tau-spiked cerebrospinal fluid increases the current flow without any interferences, confirming the selective detection of tau protein.
Published Version
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