Iranian Researchers Develop Wearable Biosensor to Diagnose Diabetes

Saturday, June 27, 2020 - 14:20

Researchers of Amirkabir University of Technology have developed a wearable and flexible textile-based electrode for non-enzymatic glucose detection.

According to an ISCA report, the research executor, Ali Sedighi, explained that monitoring and controlling glucose levels are the keys of managing diabetes; therefore, it must be measured frequently in order to prevent the side effects.

In this research, Ni-SnOx, PANI and CuO nanoparticles were synthesized on cotton fabric through chemical methods to make a new flexible high-performance non-enzymatic glucose sensor.

Based on the study, “FESEM, XRD, XPS, EDS and ATR analysis were employed to characterize the structure and the morphology of the nanomaterials. The high electrochemical performance of nickel and copper oxide and hydroxide on a conductive template leads to fabrication of a wearable and flexible cotton electrode with an excellent electrocatalytic activity to oxidize glucose.

“This hybrid system on the fabric as an electrode indicates a detection limit of 130nM with wide linear range of 0.001–10 mM. The sensitivity was measured to be 1625 and 1325A mM−1 cm−2 for the ranges of 0.001–1 and 1–10 mM, respectively.

“Long-term stability, appropriate selectivity and reusability for many times make possibility for utilizing the fabricated sensor in the practical applications. The fabric is a wide linear range electrode with low detection limit to sense glucose concentration in the body fluids as well as the human blood that can be presumably suggested for designing other similar flexible types of sensor.”

The research was done by Ali Sedighi, Majid Montazer and Saeedeh Mazinani and the results published in the journal of Biosensors and Bioelectronics.


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