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The research aimed to develop a selective sensor for the detection of dopamine using phase-engineered SWCNTs wrapped in ssDNA.

June 21, 2026Journal of FluorescenceOpen Access

Highly Selective Near-Infrared Nanosensors for Dopamine Detection: Leveraging the Phase–Engineered ssDNA-SWCNT Nanosensors

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Randomized trial demonstrates effective dopamine detection in biological samples, highlighting innovative sensor technology.

The research aimed to develop a selective sensor for the detection of dopamine using phase-engineered SWCNTs wrapped in ssDNA.
Developed a sensor system utilizing GTA 20-repeat ssDNA around SWCNTs.
Conducted fluorescence measurements in the near-infrared region using a customized microscope.
Analyzed sensor responses to different concentrations of dopamine in the 10–100 µM range.
The sensor exhibited a limited detection (LOD) of 4.2 × 10 − 5 M for dopamine.
A limit of quantification (LOQ) was determined as 13.24 × 10 − 5 M.
Fluorescence intensity increased with higher dopamine concentrations, confirming sensor selectivity.

Bayat et al. (2026) studied this question.

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