<abstract xmlns="http://www.w3.org/1999/xhtml">

Herein, a novel miniaturized sensor for sulfide detection is presented. The sensor was fabricated over a flexible polyimide substrate via CO2 laser ablation followed by surface modification with methylene blue acting as a redox mediator. The sensor showed an acceptable linear detection range (0.5 μM–1 mM), and excellent limit of detection (0.435 μM) and limit of quantification (2.45 μM). Further, remarkable sensitivity of 0.295 μA/(μM mm2) for 0.5–50 μM and 0.0047 μA/(μM mm2) for 100–1 mM was obtained. The signal-to-noise ratio was found to be 2.76 and the performance was validated by real lake water samples.
</abstract>

Herein, a novel miniaturized sensor for sulfide detection is presented. The sensor was fabricated over a flexible polyimide substrate via CO2 laser ablation followed by surface modification with methylene blue acting as a redox mediator. The sensor showed an acceptable linear detection range (0.5 μM–1 mM), and excellent limit of detection (0.435 μM) and limit of quantification (2.45 μM). Further, remarkable sensitivity of 0.295 μA/(μM mm2) for 0.5–50 μM and 0.0047 μA/(μM mm2) for 100–1 mM was obtained. The signal-to-noise ratio was found to be 2.76 and the performance was validated by real lake water samples.

A Highly Selective Real-Time Electroanalytical Detection of Sulfide Via Laser-Induced Graphene Sensor

Department of Electrical and Electronics Engineering

MEMS, Microfluidics and Nanoelectronics (MMNE) Lab

International Journal on Smart Sensing and Intelligent Systems

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Herein, a novel miniaturized sensor for sulfide detection is presented. The sensor was fabricated over a flexible polyimide substrate via CO2 laser ablation...

A Highly Selective Real-Time Electroanalytical Detection of Sulfide Via Laser-Induced Graphene Sensor

Article Category: Review

Online veröffentlicht: 07. Feb. 2024

Seitenbereich: -

Eingereicht: 09. Aug. 2023

DOI: https://doi.org/10.2478/ijssis-2024-0001

Schlüsselwörter
Laser-Induced Graphene, Methylene Blue, Sulfide, Miniaturization

© 2024 Ritesh Kumar Singh et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

A Highly Selective Real-Time Electroanalytical Detection of Sulfide Via Laser-Induced Graphene Sensor

Article Category: Review

Online veröffentlicht: 07. Feb. 2024

Seitenbereich: -

Eingereicht: 09. Aug. 2023

DOI: https://doi.org/10.2478/ijssis-2024-0001

SchlüsselwörterLaser-Induced Graphene, Methylene Blue, Sulfide, Miniaturization

© 2024 Ritesh Kumar Singh et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Schlüsselwörter
Laser-Induced Graphene, Methylene Blue, Sulfide, Miniaturization