Article ; Online: Continuous Real-Time Detection of Serotonin Using an Aptamer-Based Electrochemical Biosensor.
2023 Volume 13, Issue 11
Abstract: Serotonin (5-HT) is a critical neurotransmitter involved in many neuronal functions, and 5-HT depletion has been linked to several mental diseases. The fast release and clearance of serotonin in the extracellular space, low analyte concentrations, and a ... ...
Abstract | Serotonin (5-HT) is a critical neurotransmitter involved in many neuronal functions, and 5-HT depletion has been linked to several mental diseases. The fast release and clearance of serotonin in the extracellular space, low analyte concentrations, and a multitude of interfering species make the detection of serotonin challenging. This work presents an electrochemical aptamer-based biosensing platform that can monitor 5-HT continuously with high sensitivity and selectivity. Our electrochemical sensor showed a response time of approximately 1 min to a step change in the serotonin concentration in continuous monitoring using a single-frequency EIS (electrochemical impedance spectroscopy) technique. The developed sensing platform was able to detect 5-HT in the range of 25-150 nM in the continuous sample fluid flow with a detection limit (LOD) of 5.6 nM. The electrochemical sensor showed promising selectivity against other species with similar chemical structures and redox potentials, including dopamine (DA), norepinephrine (NE), L-tryptophan (L-TP), 5-hydroxyindoleacetic acid (5-HIAA), and 5-hydroxytryptophan (5-HTP). The proposed sensing platform is able to achieve high selectivity in the nanomolar range continuously in real-time, demonstrating the potential for monitoring serotonin from neurons in organ-on-a-chip or brain-on-a-chip-based platforms. |
---|---|
MeSH term(s) | Serotonin ; Dopamine ; Norepinephrine ; Tryptophan ; Oligonucleotides ; Biosensing Techniques ; Electrochemical Techniques |
Chemical Substances | Serotonin (333DO1RDJY) ; Dopamine (VTD58H1Z2X) ; Norepinephrine (X4W3ENH1CV) ; Tryptophan (8DUH1N11BX) ; Oligonucleotides |
Language | English |
Publishing date | 2023-11-13 |
Publishing country | Switzerland |
Document type | Journal Article |
ZDB-ID | 2662125-3 |
ISSN | 2079-6374 ; 2079-6374 |
ISSN (online) | 2079-6374 |
ISSN | 2079-6374 |
DOI | 10.3390/bios13110983 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
More links
Kategorien
Order via subito
This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.