Malmö University Publications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
The influence of nanoparticles on enzymatic bioelectrocatalysis
Malmö högskola, Faculty of Health and Society (HS), Department of Biomedical Science (BMV).
Malmö högskola, Faculty of Health and Society (HS), Department of Biomedical Science (BMV).ORCID iD: 0000-0001-6937-3057
Show others and affiliations
2014 (English)In: RSC Advances, E-ISSN 2046-2069, Vol. 4, no 72, p. 38164-38168Article in journal (Refereed) Published
Abstract [en]

In nearly all papers concerning enzyme–nanoparticle based bioelectronic devices, it is stated that the presence of nanoparticles on electrode surfaces per se enhances bioelectrocatalysis, although the reasons for that enhancement are often unclear. Here, we report detailed experimental evidence that neither an overpotential of bioelectrocatalysis, nor direct electron transfer and bioelectrocatalytic reaction rates for an adsorbed enzyme depend on the size of nanoparticles within the range of 20–80 nm, i.e. for nanoparticles that are considerably larger than the enzyme molecules.

Place, publisher, year, edition, pages
Royal Society of Chemistry, 2014. Vol. 4, no 72, p. 38164-38168
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:mau:diva-14762DOI: 10.1039/C4RA08107BISI: 000341455200030Scopus ID: 2-s2.0-84906872032Local ID: 18131OAI: oai:DiVA.org:mau-14762DiVA, id: diva2:1418283
Available from: 2020-03-30 Created: 2020-03-30 Last updated: 2024-02-05Bibliographically approved
In thesis
1. Self-charging biosupercapacitors
Open this publication in new window or tab >>Self-charging biosupercapacitors
2016 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

The thesis is focused on an entirely new class of electric power biodevices –self-charging biosupercapacitors, or in other words, charge-storing biofuelcells. The power generating segments of these biodevices rely on differentredox enzymes electrically wired to electrode surfaces. Planar electrodes wereadditionally nanostructured by gold nanoparticles to increase the real surfacearea/enhance enzyme loading. Bilirubin oxidase was used as a cathodicbiocatalyst responsible for oxygen electroreduction, whereas cellobiosedehydrogenase and glucose dehydrogenase were exploited as anodicbioelements catalyzing electrooxidation of glucose. The charge-storingsegments of biosupercapacitors were based on different electroconductingpolymers, including carbon nanotube based nanocomposites, and osmiummodified redox hydrogels. The particular bioelectrodes were characterized indetail using scanning electron and atomic force microscopies, as well asvarious electrochemical techniques. Self-charging biosupercapacitors wereassembled and basic parameters of the biodevices, viz. open-circuit voltages,power and charge densities, and stability, were studied in continuous andpulse operating modes.

Place, publisher, year, edition, pages
Malmö university, 2016. p. 62
Series
Malmö University Health and Society Dissertations, ISSN 1653-5383 ; 8
National Category
Natural Sciences
Identifiers
urn:nbn:se:mau:diva-7355 (URN)21181 (Local ID)978-91-7104-733-5 (ISBN)978-91-7104-732-8 (ISBN)21181 (Archive number)21181 (OAI)
Note

Paper VI in dissertation as manuscript.

Available from: 2020-02-28 Created: 2020-02-28 Last updated: 2024-03-15Bibliographically approved

Open Access in DiVA

fulltext(361 kB)133 downloads
File information
File name FULLTEXT01.pdfFile size 361 kBChecksum SHA-512
ff462c3d5858cdc85859053c9d711f1d40fedd7959c2d5d5e4320a4f0cd6023bf1de62c2d84342c922e170d757f40b7cba2ea04fc0c788a5d60a2675d11822d0
Type fulltextMimetype application/pdf

Other links

Publisher's full textScopus

Authority records

Pankratov, DmitrySotres, JavierBarrantes, AlejandroRuzgas, TautgirdasShleev, Sergey

Search in DiVA

By author/editor
Pankratov, DmitrySotres, JavierBarrantes, AlejandroRuzgas, TautgirdasShleev, Sergey
By organisation
Department of Biomedical Science (BMV)
In the same journal
RSC Advances
Natural Sciences

Search outside of DiVA

GoogleGoogle Scholar
Total: 133 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 32 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf