Biosupercapacitors for powering oxygen sensing devices

Kizling, Michał; Dramińska, Sylwia; Stolarczyk, Krzysztof; Tammela, Petter; Wang, Zhaohui; Nyholm, Leif; Bilewicz, Renata

doi:10.1016/j.bioelechem.2015.04.012

Cited by 48 publications

(45 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Evidently, no external power source is required for charging the capacitor . This approach was successfully demonstrated by using carbon nanotubes or nano‐porous gold matrices, conducting polymers, or redox polymers as the charge storing capacitance matrix. In these systems, charges generated by oxidation or reduction reactions catalyzed by the immobilized enzymes are transferred to the corresponding storage matrix either by means of direct electron transfer to/from the electrode material or in a mediated electron transfer reaction between the biocatalyst and the redox mediator.…”

Section: Introductionmentioning

confidence: 99%

An Intrinsic Self‐Charging Biosupercapacitor Comprised of a High‐Potential Bioanode and a Low‐Potential Biocathode

et al. 2017

View full text Add to dashboard Cite

Abstract:We present an intrinsic self-charging biosupercapacitor built on a unique concept for the fabrication of biodevices based on redox polymers. The biosupercapacitor consists of a high-potential redox polymer based bioanode and a low-potential redox polymer based biocathode in which the potentials of the electrodes in the discharged state show an apparent potential mismatch E anode > E cathode and prevent the use of the device as a conventional biofuel cell. Upon charging the potentials of the electrodes are shifted to more positive (cathode) and more negative (anode) values because of a change in the a ox -to-a red ratio within the redox polymer matrix. Hence, a potential inversion occurs in the charged state (E anode < E cathode ) and an open circuit voltage of > 0.4 V is achieved and the biodevice acts as a true biosupercapacitor. The bioanode consists of a novel specifically designed high potential Os-complex modified polymer for the efficient immobilization and electrical wiring of glucose converting enzymes, such as glucose oxidase and FAD-dependent glucose dehydrogenase. The cathodic side is constructed from a low potential Os-complex modified polymer integrating the O 2 reducing enzyme, bilirubin oxidase. The large potential differences between the redox polymers and the prosthetic groups of the biocatalysts ensure fast and efficient charging of the biodevice.

show abstract

Section: Introductionmentioning

confidence: 99%

An Intrinsic Self‐Charging Biosupercapacitor Comprised of a High‐Potential Bioanode and a Low‐Potential Biocathode

et al. 2017

View full text Add to dashboard Cite

show abstract

“…Die beiden Bioelektroden wurden zu einem Nernst‐BSC kombiniert, und es wurde eine detaillierte Charakterisierung in Anwesenheit und Abwesenheit der Enzymsubstrate, Glukose und O 2 , durchgeführt. Im Gegensatz zur früher genutzten Methode,, haben wir während des Selbstladens sowie der externen Entladung sowohl die OCV des Biodevices sowie das freie Korrosionspotential (open‐circuit potential, OCP) separat beobachtet (hier und folgend sind alle Potentiale gegenüber der NHE angegeben; Abbildung b sowie SI, Abschnitt 2).…”

Section: Figureunclassified

“… bzw. ). Die spezifische Ladungsdichte, die im Nernst‐BSC erreicht wurde, ist mit 1700 mC g −1 dramatisch höher als die aus Lit.…”

Section: Figureunclassified

See 1 more Smart Citation

Ein Nernst‐Biosuperkondensator

et al. 2016

View full text Add to dashboard Cite

show abstract

“…[16] Also, it was proved that separated subunits can be reconstituted on the electrode surface with full maintenance of enzymatic activity. [17] However, several approaches, such as the use of a mediator [18] or conductive polymer, [19] have been reported to improve the electrocatalytic performance of FDH for mediated electron transfer. On the other hand, high catalytic current density was obtained in the DET-type process, without any mediator, with some porous materials or electrode modified with nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

Fructose Dehydrogenase Electron Transfer Pathway in Bioelectrocatalytic Reactions

Kizling

Bilewicz

2017

ChemElectroChem

Self Cite

View full text Add to dashboard Cite

We present kinetic and mechanistic studies of fructose oxidation by fructose dehydrogenase (FDH) using the electrochemical methods of stationary and rotating disk voltammetry. FDH was physically adsorbed on unmodified multiwalled carbon nanotubes (MWCNT) to study direct electron transfer (DET) parameters, and for comparison an MWCNT with an adsorbed pyrene derivative of naphthoquinone employed as the mediator in mediated electron transfer, MET, was also examined. Kinetic parameters, such as the number of electrons transferred, the turnover number, and the electron transfer rate constant, were calculated. Comparison of the non-turnover and catalytic behaviour revealed the role of the heme c active site in the electron transfer of FDH. It was also shown that a mediator with a sufficiently low formal potential, such as the naphthoquinone, substitutes for the heme c site in the electron transfer to the electrode. The kinetic parameters of the processes proved that the application of the mediator results in an increase in the rate of fructose catalytic oxidation compared to that of the DET oxidation process.

show abstract

Biosupercapacitors for powering oxygen sensing devices

Cited by 48 publications

References 40 publications

An Intrinsic Self‐Charging Biosupercapacitor Comprised of a High‐Potential Bioanode and a Low‐Potential Biocathode

An Intrinsic Self‐Charging Biosupercapacitor Comprised of a High‐Potential Bioanode and a Low‐Potential Biocathode

Ein Nernst‐Biosuperkondensator

Fructose Dehydrogenase Electron Transfer Pathway in Bioelectrocatalytic Reactions

Contact Info

Product

Resources

About