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Highly sensitive an...
Highly sensitive and stable fructose self-powered biosensor based on a self-charging biosupercapacitor
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- Bollella, Paolo (author)
- Åbo Akademi University
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- Boeva, Zhanna (author)
- Åbo Akademi University
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- Latonen, Rose Marie (author)
- Åbo Akademi University
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- Kano, Kenji (author)
- Kyoto University
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- Gorton, Lo (author)
- Lund University,Lunds universitet,Biokemi och Strukturbiologi,Centrum för Molekylär Proteinvetenskap,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Biochemistry and Structural Biology,Center for Molecular Protein Science,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH
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- Bobacka, Johan (author)
- Åbo Akademi University
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(creator_code:org_t)
- Elsevier BV, 2021
- 2021
- English.
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In: Biosensors and Bioelectronics. - : Elsevier BV. - 0956-5663. ; 176
- Related links:
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http://dx.doi.org/10...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Subject headings
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- 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.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Energiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Energy Engineering (hsv//eng)
- NATURVETENSKAP -- Kemi -- Analytisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Analytical Chemistry (hsv//eng)
Keyword
- Conducting polymers
- Enzyme-based electrodes
- Fructose dehydrogenase
- Self-charging biosupercapacitors
- Self-powered biosensors
Publication and Content Type
- art (subject category)
- ref (subject category)
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