Skip to main content
Log in

Graphene biosensor design based on glass substrate for forensic detection of illicit drugs

  • Published:
Optical and Quantum Electronics Aims and scope Submit manuscript

Abstract

This manuscript presents the development and analysis of a highly sensitive surface plasmonic biosensor tailored for forensic applications, with a specific focus on the precise identification of illegal drugs. The sensor employs a synergistic combination of graphene, glass(fused silica), and gold as fundamental building materials, harnessing their unique properties to enhance detection capabilities. By integrating glass as the substrate, the sensor benefits from its excellent transparency, mechanical stability, and chemical inertness. This provides a solid foundation for the graphene layer, allowing for precise and reliable sensing interactions. A comparative evaluation with existing technologies highlights the sensor's competitive edge in terms of both sensitivity and accuracy. The application of glass as the substrate plays a pivotal role in providing a robust platform for the graphene layer, thereby contributing significantly to the sensor's overall performance and applicability in forensic scenarios. The proposed sensor demonstrates remarkable sensitivity, achieving a maximum relative sensitivity of 4889 GHz/RIU enabling the detection of even the slightest shifts in refractive index—a crucial aspect in the identification of illicit drugs. The sensor's wide range of FOM values, ranging from 15.138 to 54.932 RIU−1, further highlights its adaptability across a diverse spectrum of refractive index measurements.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10
Fig. 11

Similar content being viewed by others

Availability of data and materials

The data supporting the findings in this work are available from the corresponding author with a reasonable request.

References

Download references

Acknowledgements

Researchers Supporting Project number (RSPD2024R654), King Saud University, Riyadh, Saudi Arabia

Funding

Researchers Supporting Project number (RSPD2024R654), King Saud University, Riyadh, Saudi Arabia.

Author information

Authors and Affiliations

Authors

Contributions

“Conceptualization, Shobhit K. Patel; methodology,, Shobhit K. Patel, Jacob Wekalao; Software, Jacob Wekalao, Shobhit K. Patel and Osamah Alsalman Validation, All authors writing—original draft preparation, Jacob Wekalao and Rinku Manvani; Formal Analysis, All Authors; writing—review and editing, All Authors; All authors have read and agreed to the published version of the manuscript.”

Corresponding author

Correspondence to Shobhit K. Patel.

Ethics declarations

Competing interests

The authors declare no competing interests.

Ethical approval

Not applicable.

Additional information

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Wekalao, J., Alsalman, O., Manvani, R. et al. Graphene biosensor design based on glass substrate for forensic detection of illicit drugs. Opt Quant Electron 56, 819 (2024). https://doi.org/10.1007/s11082-024-06690-3

Download citation

  • Received:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1007/s11082-024-06690-3

Keywords

Navigation