Biofuel cell as a power source for electronic contact lenses

Falk, Magnus; Andoralov, Viktor; Blum, Zoltan; Sotres, Javier; Suyatin, Dmitry; Ruzgas, Tautgirdas; Arnebrant, Thomas; Shleev, Sergey

doi:10.1016/j.bios.2012.04.030

Cited by 201 publications

(166 citation statements)

References 33 publications

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“…Vice versa, by immobilizing MvBOx at the biocathode oxygen was used as oxidant. Characterization of the individual bioelectrodes, as well as the complete EFC in simple buffers, are presented in the Supplementary Information (SI, Figures S1 and S2), and is also discussed in detail in our previous work [13]. …”

Section: Resultsmentioning

confidence: 99%

“…A similar approach as reported previously was used to design the bioelectrodes [13] The CtCDH concentration on the electrode surface was estimated to be around 1 pmol cm ±2 , taking into account the real surface area, corresponding to sub-monolayer coverage.…”

Section: Methodsmentioning

confidence: 99%

“…We recently reported on a microscale EFC operating in human tears, where we suggested its use as a power source for bioelectronic contact lenses [13]. The EFC was fabricated utilizing gold nanoparticle (AuNP) modified microwires, employing a cellobiose dehydrogenase (CDH) modified anode for glucose oxidation and a bilirubin oxidase (BOx) modified cathode for oxygen reduction.…”

Section: Introductionmentioning

confidence: 99%

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Miniature Direct Electron Transfer Based Enzymatic Fuel Cell Operating in Human Sweat and Saliva

et al. 2014

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We present data on operation of a miniature membrane‐less, direct electron transfer based enzymatic fuel cell in human sweat and saliva. The enzymatic fuel cell was fabricated following our previous reports on miniature biofuel cells, utilizing gold nanoparticle modified gold microwires with immobilized cellobiose dehydrogenase and bilirubin oxidase. The following average characteristics of miniature glucose/oxygen biodevices operating in human sweat and saliva, respectively, were registered: 580 and 560 mV open‐circuit voltage, 0.26 and 0.1 μW cm–2 power density at a cell voltage of 0.5 V, with up to ten times higher power output at 0.2 V. When saliva collected after meal ingestion was used, roughly a two‐fold increase in power output was obtained, with a further two‐fold increase by addition of 500 μM glucose. Likewise, the power generated in sweat at 0.5 V increased two‐fold by addition of 500 μM glucose.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Miniature Direct Electron Transfer Based Enzymatic Fuel Cell Operating in Human Sweat and Saliva

et al. 2014

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“…While there is not much to say about the first approach [5,8,9], which is obviously a reasonable approach for scientific studies but certainly inappropriate for an end user, the second group is very diverse and includes over-the-air (OTA) electric power delivery [2,6,8,11], as well as solar [7] and electrochemical cells [12,13].…”

Section: Expert Commentarymentioning

confidence: 99%

“…Indeed, as early as in 2011, a patent application, patent cooperation treaty, entitled 'flexible biofuel cell, device and method' was filed, with the priority date 24 March 2010, describing the possible usage of biological fuel cells (BFCs) to power bionic contact lenses [17]. Later, several papers about the performance of different BFCs in human lachrymal liquid were also published [12,13].…”

Section: Expert Commentarymentioning

confidence: 99%