Biosensors comprising enzymes coupled to mesoporous tin-rich indium tin oxide based transparent and conductive thin films prepared by employing a single source precursor approach

AKSU Y., Frasca S., Aksu S., Thomas A., Wollenberger U., Driess M.

IUPAC 44th World Chemistry Congress, İstanbul, Turkey, 11 - 16 August 2013, pp.109, (Full Text)

  • Publication Type: Conference Paper / Full Text
  • City: İstanbul
  • Country: Turkey
  • Page Numbers: pp.109
  • Akdeniz University Affiliated: Yes

Abstract

The unique combination of transparency and conductivity allows transparent conducting oxides (TCOs) to find many applications in modern scientific and industrial technologies.[1] Especially, the preparation of mesoporous, thin film electrodes from transparent TCOs, with well defined 3D mesoporosity of a few nanometers in diameter, are ideal candidates as host materials for catalysts, metals, organic molecule and biomolecules, and of considerable interest for applications in optoelectronics, solar cells and sensors.

 

By employing a Single Source Precursor (SSP)-approach,[2] we prepared very effectively mesoporous, tin-rich ITO films with high tin content and durable optoelectronical properties.[3] The porous nanostructure allows the incorporation of higher amounts of supported electrochemically active and native Cytochrome-C centers, while the transparency of the electrode makes a spectroscopic characterization of these centers possible even during cell performance. Advantage of this novel material in comparison to a normal mpITO for bioelectrochemistry will be presented. 

 

References

 

[1] S. Frasca, T. Graberg, J. Feng, A. Thomas, B. Smarsly, I. Weidinger, F. Scheller, P
      Hildebrandt, U. Wollenberger , ChemCatChem, 2, 839 (2010).

[2]  Y. Aksu., M. Driess, Angew. Chem. Int. Ed., 48, 7778 (2009).

[3] Y. Aksu, S. Frasca, U. Wollenberger, M. Driess, A. Thomas, Chem. Mat., 23(7),
      1798 (2011).