Charge stabilization by reaction center protein immobilized to carbon nanotubes functionalized by amine groups and poly(3-thiophene acetic acid) conducting polymer

T. Szabó, M. Magyar, Z. Németh, K. Hernádi, B. Endrodi, G. Bencsik, C. Visy, E. Horváth, A. Magrez, L. Forró, L. Nagy

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

A large number of studies have indicated recently that photosynthetic reaction center proteins (RC) bind successfully to nanostructures and their functional activity is largely retained. The major goal of current research is to find the most efficient systems and conditions for the photoelectric energy conversion and for the stability of this bio-nanocomposite. In our studies, we immobilized the RC protein on multiwalled carbon nanotubes (MWNT) through specific chemical binding to amine functional groups and through conducting polymer (poly(3-thiophene acetic acid), PTAA). Both structural (TEM, AFM) and functional (absorption change and conductivity) measurements has shown that RCs could be bound effectively to functionalized CNTs. The kinetics of the light induced absorption change indicated that RCs were still active in the composite and there was an interaction between the protein cofactors and the CNTs. The light generated photocurrent was measured in an electrochemical cell with transparent CNT electrode designed specially for this experiment.

Original languageEnglish
Pages (from-to)2386-2389
Number of pages4
JournalPhysica Status Solidi (B) Basic Research
Volume249
Issue number12
DOIs
Publication statusPublished - Dec 2012

Fingerprint

Immobilized Proteins
Carbon Nanotubes
Conducting polymers
conducting polymers
Thiophene
thiophenes
acetic acid
Acetic acid
Amines
Carbon nanotubes
amines
Stabilization
stabilization
carbon nanotubes
proteins
Proteins
Photosynthetic Reaction Center Complex Proteins
Electrochemical cells
Multiwalled carbon nanotubes (MWCN)
electrochemical cells

Keywords

  • Carbon nanotubes
  • Conducting polymers
  • Reaction center protein

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Charge stabilization by reaction center protein immobilized to carbon nanotubes functionalized by amine groups and poly(3-thiophene acetic acid) conducting polymer. / Szabó, T.; Magyar, M.; Németh, Z.; Hernádi, K.; Endrodi, B.; Bencsik, G.; Visy, C.; Horváth, E.; Magrez, A.; Forró, L.; Nagy, L.

In: Physica Status Solidi (B) Basic Research, Vol. 249, No. 12, 12.2012, p. 2386-2389.

Research output: Contribution to journalArticle

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AU - Endrodi, B.

AU - Bencsik, G.

AU - Visy, C.

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