title: Toward Single Electron Nanoelectronics Using Self-Assembled DNA Structure.
abstract: DNA based structures offer an adaptable and robust way to develop customized nanostructures for various purposes in bionanotechnology. One main aim in this field is to develop a DNA nanobreadboard for a controllable attachment of nanoparticles or biomolecules to form specific nanoelectronic devices. Here we conjugate three gold nanoparticles on a defined size TX-tile assembly into a linear pattern to form nanometer scale isolated islands that could be utilized in a room temperature single electron transistor. To demonstrate this, conjugated structures were trapped using dielectrophoresis for current-voltage characterization. After trapping only high resistance behavior was observed. However, after extending the islands by chemical growth of gold, several structures exhibited Coulomb blockade behavior from 4.2 K up to room temperature, which gives a good indication that self-assembled DNA structures could be used for nanoelectronic patterning and single electron devices.
authors.affiliation: University of Jyvaskyla , Department of Physics, Nanoscience Center, P.O. Box 35, FI-40014 University of Jyväskylä, Finland.
authors.forename: Kosti
authors.initials: K
authors.lastname: Tapio
authors.affiliation: BioMediTech, University of Tampere , Lääkärinkatu 1, FI-33520 Tampere, Finland.|Fimlab Laboratories, Biokatu 4, FI-33520 Tampere, Finland.
authors.forename: Jenni
authors.initials: J
authors.lastname: Leppiniemi
authors.affiliation: University of Jyvaskyla , Department of Physics, Nanoscience Center, P.O. Box 35, FI-40014 University of Jyväskylä, Finland.
authors.forename: Boxuan
authors.initials: B
authors.lastname: Shen
authors.affiliation: BioMediTech, University of Tampere , Lääkärinkatu 1, FI-33520 Tampere, Finland.|Fimlab Laboratories, Biokatu 4, FI-33520 Tampere, Finland.
authors.forename: Vesa P
authors.initials: VP
authors.lastname: Hytönen
authors.affiliation: Leibniz Institute of Photonic Technology (IPHT) , Albert-Einstein-Strasse 9, Jena 07745, Germany.
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Fritzsche
authors.affiliation: University of Jyvaskyla , Department of Physics, Nanoscience Center, P.O. Box 35, FI-40014 University of Jyväskylä, Finland.
authors.forename: J Jussi
authors.initials: JJ
authors.lastname: Toppari
mesh_terms: D004247:DNA / Q000737:chemistry*; D019281:Dimerization; D004583:Electrons; D006046:Gold / Q000737:chemistry; D053768:Metal Nanoparticles / Q000737:chemistry*; D010316:Particle Size; D013696:Temperature; D014173:Transistors, Electronic
chemical_list: D006046:Gold; D004247:DNA
keywords: DNA; DNA metallization; conjugation; dielectrophoresis; gold nanoparticles; single electron transistor