The influence of nanoparticles on enzymatic bioelectrocatalysis

Summary, in English

In nearly all papers concerning enzyme-nanoparticle based bio-electronic 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.

• Författare: Dmitry Pankratov; Richard Sundberg; Dmitry Suyatin; Javier Sotres; Alejandro Barrantes; Tautgirdas Ruzgas; Ivan Maximov; Lars Montelius; Sergey Shleev
• Avdelning/ar: Fasta tillståndets fysik; Neuronano Research Center (NRC); NanoLund: Centre for Nanoscience
• Publiceringsår: 2014
• Språk: Engelska
• Sidor: 38164-38168
• Publikation/Tidskrift/Serie: RSC Advances
• Volym: 4
• Issue: 72
• Länkar: http://dx.doi.org/10.1039/c4ra08107b
• Dokumenttyp: Artikel i tidskrift
• Förlag: Royal Society of Chemistry
• Ämne: Nano Technology; Chemical Sciences; Other Physics Topics
• Status: Published
• Forskningsgrupp: Neuronano Research Center (NRC); Nanometer structure consortium (nmC)
• ISBN/ISSN/Övrigt: ISSN: 2046-2069