Milovan Šuvakov and Bosiljka Tadić J. Stat. Mech. (2009) P02015 doi:10.1088/1742-5468/2009/02/P02015
Milovan Šuvakov and Bosiljka Tadić
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Using numerical modeling we study the emergence of structure and structure-related non-linear conduction properties in self-assembled nanoparticle films. In particular, we show how different nanoparticle networks emerge within assembly processes with molecular bio-recognition binding. We then simulate the charge transport under voltage bias via single-electron tunnelings through the junctions between nanoparticles on such networks. We show how the regular nanoparticle array and topologically inhomogeneous nanonetworks affect the charge transport. We find long-range correlations in the time series of charge fluctuation at individual nanoparticles and of flow along the junctions within the network. These correlations explain the occurrence of a large non-linearity in the simulated and experimentally measured current–voltage characteristics and non-Gaussian fluctuations of the current at the electrode.
87.15.B- Structure of biomolecules
73.23.Hk Coulomb blockade; single-electron tunneling
87.15.K- Molecular interactions; membrane-protein interactions
92D20 Protein sequences, DNA sequences
92C40 Biochemistry, molecular biology
82C80 Numerical methods (Monte Carlo, series resummation, etc.)
Issue 02 (February 2009)
Received 24 October 2008, accepted for publication 14 November 2008
Published 4 February 2009
Milovan Šuvakov and Bosiljka Tadić J. Stat. Mech. (2009) P02015
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