Self-​powered wireless carbohydrate​/oxygen sensitive biodevice based on radio signal transmission

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Self-​powered wireless carbohydrate​/oxygen sensitive biodevice based on radio signal transmission

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Publication Article, peer reviewed scientific
Title Self-​powered wireless carbohydrate​/oxygen sensitive biodevice based on radio signal transmission
Author(s) Falk, Magnus ; Alcalde, Miguel ; Bartlett, Philip ; De Lacey, Antonio ; Gorton, Lo ; Gutierrez-Sanchez, Cristina ; Haddad, Raoudha ; Kilburn, Jeremy ; Leech, Donal ; Ludwig, Roland ; Magner, Edmond ; Mate, Diana ; Conghaile, Peter ; Ortiz, Roberto ; Pita, Marcos ; Poeller, Sascha ; Ruzgas, Tautgirdas ; Salaj-Kosla, Urszula ; Schuhmann, Wolfgang ; Sebelius, Fredrik ; Shao, Minling ; Stoica, Leonard ; Sygmund, Cristoph ; Tilly, Jonas ; Toscano, Miguel ; Vivekananthan, Jeevanthi ; Wright, Emma ; Shleev, Sergey
Date 2014
English abstract
Here for the first time, we detail self-​contained (wireless and self-​powered) biodevices with wireless signal transmission. Specifically, we demonstrate the operation of self-​sustained carbohydrate and oxygen sensitive biodevices, consisting of a wireless electronic unit, radio transmitter and sep. sensing bioelectrodes, supplied with elec. energy from a combined multi-​enzyme fuel cell generating sufficient current at required voltage to power the electronics. A carbohydrate​/oxygen enzymic fuel cell was assembled by comparing the performance of a range of different bioelectrodes followed by selection of the most suitable, stable combination. Carbohydrates (viz. lactose for the demonstration) and oxygen were also chosen as bioanalytes, being important biomarkers, to demonstrate the operation of the self-​contained biosensing device, employing enzyme-​modified bioelectrodes to enable the actual sensing. A wireless electronic unit, consisting of a micropotentiostat, an energy harvesting module (voltage amplifier together with a capacitor) and a radio microchip, were designed to enable the biofuel cell to be used as a power supply for managing the sensing devices and for wireless data transmission. The electronic system used required current and voltages greater than 44 μA and 0.57 V, resp. to operate; which the biofuel cell was capable of providing, when placed in a carbohydrate and oxygen contg. buffer. In addn., a USB based receiver and computer software were employed for proof-​of concept tests of the developed biodevices. Operation of bench-​top prototypes was demonstrated in buffers contg. different concns. of the analytes, showcasing that the variation in response of both carbohydrate and oxygen biosensors could be monitored wirelessly in real-​time as analyte concns. in buffers were changed, using only an enzymic fuel cell as a power supply.
DOI (link to publisher's fulltext)
Publisher Public Library of Science
Host/Issue PLoS One;10
Volume 9
ISSN 1932-6203
Pages e109104/1-e109104/9
Language eng (iso)
Subject(s) Sciences
Research Subject Categories::NATURAL SCIENCES
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