Abstrakti
Herein, we present an alternative approach to obtain a highly sensitive and stable self-powered biosensor that was used to detect D-fructose as proof of concept.In this platform, we perform a two-step process, viz. self charging the biosupercapacitor for a constant time by using D-fructose as fuel and using the stored charge to realize the detection of D-fructose by performing several polarization curves at different D-fructose concentrations. The proposed BSC shows an instantaneous power density release of 17.6 mW cm(-2) and 3.8 mW cm(-2) in pulse mode and at constant load, respectively. Moreover, the power density achieved for the self-charging BSC in pulse mode or under constant load allows for an enhancement of the sensitivity of the device up to 10 times (3.82 +/- 0.01 mW cm(-2) mM(-1), charging time = 70 min) compared to the BSC in continuous operation mode and 100 times compared to the normal enzymatic fuel cell. The platform can potentially be employed as a self powered biosensor in food or biomedical applications.
Alkuperäiskieli | Englanti |
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Artikkeli | 112909 |
Julkaisu | Biosensors and Bioelectronics |
Vuosikerta | 176 |
DOI - pysyväislinkit | |
Tila | Julkaistu - 15 maalisk. 2021 |
OKM-julkaisutyyppi | A1 Julkaistu artikkeli, soviteltu |
Sormenjälki
Sukella tutkimusaiheisiin 'Highly sensitive and stable fructose self-powered biosensor based on a self-charging biosupercapacitor'. Ne muodostavat yhdessä ainutlaatuisen sormenjäljen.Laitteet
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Åbo Akademi Functional Printing Center
Martti Toivakka (PI), Jessica Rosenholm (PI), Nicklas Anttu (PI), Johan Bobacka (PI), Tan Phat Huynh (PI), Jouko Peltonen (PI), Xiaoju Wang (PI), Carl-Eric Wilen (PI), Chunlin Xu (PI), Hongbo Zhang (PI) & Ronald Österbacka (PI)
Faculty of Science and EngineeringLaitteistot/tilat: Laitos