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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

A flexible and wearable glucose sensor based on functional polymers with Soft-MEMS techniques.

A novel biosensor for glucose measurement using functional polymers was fabricated and tested. The biosensor utilizes the physical and chemical functions of hydrophobic polydimethyl siloxane (PDMS) and hydrophilic 2-methacryloyloxyethyl phosphorylcholine (MPC) copolymerized with dodecyl methacrylate (DMA). The glucose sensor was constructed by immobilizing glucose oxidase (GOD) onto a flexible hydrogen peroxide electrode (Pt working electrode and Ag/AgCl counter/reference electrode). The electrodes were fabricated using microelectromechanical systems (MEMS) techniques onto those functional polymers. The sensor showed novel functions of flexibility and it was stretchable so that the sensor could normally work when it was released after expanding to 120% longer than that of normal length. Also, basic characteristics of the sensor were evaluated. The output current of the hydrogen peroxide electrode was linearly related to the hydrogen peroxide concentration in a range of 0.20-2.50mmol/l, with a correlation coefficient of 0.998. GOD was then immobilized onto the surface of the sensor using MPC polymer. In this case, the current output of the glucose sensor related to the glucose level over a range of 0.06-2.00mmol/l, with a correlation coefficient of 0.997. The calibration range includes the reported concentration of tear glucose in normal human subject (0.14mmol/l).[1]


  1. A flexible and wearable glucose sensor based on functional polymers with Soft-MEMS techniques. Kudo, H., Sawada, T., Kazawa, E., Yoshida, H., Iwasaki, Y., Mitsubayashi, K. Biosensors & bioelectronics. (2006) [Pubmed]
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