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An oxygen-independent and membrane-less glucose biobattery/supercapacitor hybrid device

Overview of attention for article published in Biosensors & Bioelectronics, July 2017
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Title
An oxygen-independent and membrane-less glucose biobattery/supercapacitor hybrid device
Published in
Biosensors & Bioelectronics, July 2017
DOI 10.1016/j.bios.2017.07.023
Pubmed ID
Authors

Xinxin Xiao, Peter Ó Conghaile, Dónal Leech, Roland Ludwig, Edmond Magner

Abstract

Enzymatic biofuel cells can generate electricity directly from the chemical energy of biofuels in physiological fluids, but their power density is significantly limited by the performance of the cathode which is based on oxygen reduction for in vivo applications. An oxygen-independent and membrane-less glucose biobattery was prepared that consists of a dealloyed nanoporous gold (NPG) supported glucose dehydrogenase (GDH) bioanode, immobilised with the assistance of conductive polymer/Os redox polymer composites, and a solid-state NPG/MnO2 cathode. In a solution containing 10mM glucose, a maximum power density of 2.3µWcm(-2) at 0.21V and an open circuit voltage (OCV) of 0.49V were registered as a biobattery. The potential of the discharged MnO2 could be recovered, enabling a proof-of-concept biobattery/supercapacitor hybrid device. The resulting device exhibited a stable performance for 50 cycles of self-recovery and galvanostatic discharge as a supercapacitor at 0.1mAcm(-2) over a period of 25h. The device could be discharged at current densities up to 2mAcm(-2) supplying a maximum instantaneous power density of 676 μW cm(-2), which is 294 times higher than that from the biobattery alone. A mechanism for the recovery of the potential of the cathode, analogous to that of RuO2 (Electrochim. Acta 42(23), 3541-3552) is described.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 158 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 158 100%

Demographic breakdown

Readers by professional status Count As %
Student > Bachelor 86 54%
Student > Ph. D. Student 9 6%
Other 8 5%
Researcher 7 4%
Student > Master 5 3%
Other 8 5%
Unknown 35 22%
Readers by discipline Count As %
Engineering 50 32%
Chemistry 18 11%
Agricultural and Biological Sciences 11 7%
Biochemistry, Genetics and Molecular Biology 11 7%
Materials Science 5 3%
Other 20 13%
Unknown 43 27%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 2. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 12 July 2017.
All research outputs
#15,173,117
of 25,382,440 outputs
Outputs from Biosensors & Bioelectronics
#4,144
of 6,851 outputs
Outputs of similar age
#169,537
of 324,855 outputs
Outputs of similar age from Biosensors & Bioelectronics
#47
of 90 outputs
Altmetric has tracked 25,382,440 research outputs across all sources so far. This one is in the 38th percentile – i.e., 38% of other outputs scored the same or lower than it.
So far Altmetric has tracked 6,851 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 5.6. This one is in the 38th percentile – i.e., 38% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 324,855 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 46th percentile – i.e., 46% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 90 others from the same source and published within six weeks on either side of this one. This one is in the 47th percentile – i.e., 47% of its contemporaries scored the same or lower than it.