Highly sensitive and stable fructose self-powered biosensor based on a self-charging biosupercapacitor

被引：34
作者：
Bollella, Paolo [1 ]
Boeva, Zhanna [1 ]
Latonen, Rose-Marie [1 ]
Kano, Kenji [2 ]
Gorton, Lo [3 ]
Bobacka, Johan [1 ]
机构：
[1] Abo Akad Univ, Johan Gadolin Proc Chem Ctr, Fac Sci & Engn, Lab Mol Sci & Engn, Biskopsgatan 8, FIN-20500 Turku, Finland
[2] Kyoto Univ, Grad Sch Agr, Div Appl Life Sci, Sakyo Ku, Kyoto 6068502, Japan
[3] Lund Univ, Dept Analyt Chem Biochem, POB 124, S-22100 Lund, Sweden
来源：
BIOSENSORS & BIOELECTRONICS | 2021年 / 176卷
基金：
瑞典研究理事会;
关键词：
Self-powered biosensors; Self-charging biosupercapacitors; Fructose dehydrogenase; Conducting polymers; Enzyme-based electrodes; DIRECT ELECTRON-TRANSFER; MICROBIAL FUEL-CELL; DEPENDENT GLUCOSE-DEHYDROGENASE; FRUCTOSE/DIOXYGEN BIOFUEL CELL; PROOF-OF-CONCEPT; CARBON NANOTUBES; CONDUCTING POLYMERS; RAMAN-SPECTROSCOPY; POLYANILINE; EMERALDINE;
D O I：
10.1016/j.bios.2020.112909
中图分类号：
Q6 [生物物理学];
学科分类号：
071011 ;
摘要：
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.
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页数：9
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