Specialists from the A. V. Rzhanov Institute of Semiconductor Physics (ISP) SB RAS have created the first flexible graphene glucose sensor in Russia. The development makes it possible to control sugar levels by sweat composition, without piercing the skin. This was reported by the press service of the university.
Special ink was created to print the sensitive element of the sensor on paper. It consists of graphene and a conductive polymer.
When such a composite is applied to paper, vertically arranged graphene particles are formed in the layer, and they act as catalysts for glucose oxidation, and the signal level depends on the amount of oxidation products. This is the first sample of this type of sensor in Russia.
The experimental sample is currently operating at a low recording speed. It generates a result within 10-30 minutes. The developers are creating an additional module to amplify the signal and transmit data to the phone via Bluetooth.
The difference between our sensor and those being developed by other groups in Russia and abroad is that we have found a simple and inexpensive way to obtain a high response using graphene as the main sensitive matrix. Other authors chose other components as the sensitive element, while graphene only amplified the signal.
The sensor can be worn on the wrist or elsewhere. It can become an alternative to a glucometer.
Earlier www1.ru reported that a Russian neural network is learning to determine diabetes by the eyes of a person.
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