Abstract
In recent years, flexible sensors have been widely utilized in wearable technologies for biological monitoring. However, the traditional sensors comprised of silicon and other glass substances are limited to continuous monitoring. Nanomaterial-based biosensors are widely utilized in biological applications because of their properties, such as greater flexibility, sensitivity, cost efficiency. In this article, a novel hybrid nanomaterial was designed combining indium tin oxide-doped graphene quantum dots with peptides (ITO-GQD/P) for pressure sensing applications in the biological field. The characteristics of the designed hybrid nanomaterial were analyzed by performing experiments like FT-IR, UV–V, and XRD spectroscopy. The X-ray diffusion analysis evaluates the strong interconnection between the ITO and GQD structures with a lateral size of 0.9 nm, illustrating the efficient transfer of excitation energy to the sensor and making it more suitable for sensing applications. Furthermore, to evaluate the efficiency of the designed nanomaterial, its characteristics are compared with individual organic materials like GQDs and ITO/peptides. From the experimental analysis, the designed material attained a greater sensitivity of 99.8% for pressure-sensing applications and acts as a promising biosensor in wearable healthcare monitoring.
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The authors extend their appreciation to the Deanship of Scientific Research at King Khalid University, Saudi Arabia, for funding this work through a Large Group Research Project under grant number RGP2/477/44.
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Ahmad, M.T., Alam, M.M., Imran, M. et al. Nanomaterial-based biosensor for effective pressure sensing in biological applications. J Mater Sci: Mater Electron 34, 1946 (2023). https://doi.org/10.1007/s10854-023-11291-z
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DOI: https://doi.org/10.1007/s10854-023-11291-z