A thin film polyethylene terephthalate (PET) electrochemical sensor for detection of glucose in sweat
2019
Abstract In this work, a thin film PET based gold electrode (PGE) glucose sensor was fabricated through ultraviolet mediated chemical plating technique. Compared with the most existing wearable thin film gold electrode sensors, the PGE-glucose sensor is simple, low cost and minimum instrumentation was required. The proposed glucose sensor revealed a sensitivity of 22.05 μA mM −1 cm −2 in a linear range from 0.02 to 1.11 mM with a low detection limit of 2.7 μM (S/N = 3). The PGE-glucose sensor had a good selectivity and was not interfered by lactic acid, urea, acetaminophen, uric acid, dopamine and ascorbic acid. Additionally, it exhibited good reproducibility and long-term stability over four weeks. Finally, the disposable PGE-glucose sensor was successfully applied to determine the glucose in sweat and commercial beverage accurately.
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