Frontiers of Engineering Reports on Leading-Edge Engineering from the 2008 Symposium (2009) / Chapter Skim
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The Role of DNA in Nanoarchitectonics--Mihrimah Ozkan and Cengiz S. Ozkan
The Role of DNA in Nanoarchitectonics--Mihrimah Ozkan and Cengiz S. Ozkan
Pages 71-82
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From page 71... ...
The ultimate goal is the development of highly controlled, high-throughput fabrication of nanoelectronics as stand-alone devices/systems or components/devices that could be integrated heterogeneously onto existing device platforms. Deoxyribonucleic acid (DNA)
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From page 72... ...
. We believe that novel routes, which would be available with self-assembly processing and highly integrated materials, could circumvent current challenges of CMOS to achieve environmental friendliness, thermal balance, dielectric quality, and manageable capital costs of next-generation fabrication facilities -- if we can develop massively parallel integration of SWNTs and semiconducting, defecttolerant nanowires.
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From page 73... ...
a resonant tunneling diode based on DNA-SWNT architectures. Carbon Nanotube-Based Functional Nanostructures The synthesis of hybrid nanoarchitectures based on SWNT-DNA or SWNTPNA conjugates may offer unique possibilities for nanoelectronics and biotechnology (Figure 2)
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From page 74... ...
The search for alternative routes based on molecular recognition between complementary strands of DNA has prompted an exploration of the electronic properties of DNA for use in molecular electronics and templated nanostructures (Arkin et al., 1996; Coffer et al., 1996; Heath and Ratner, 2003; Seeman, 1998, 1999, 2003)
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From page 75... ...
After placing physical metallic contacts on SWNTs, we investigated the electrical characteristics of this heterojunction. The results show negative resonance tunneling behavior that can be adopted to fabricate resonant tunneling diode circuits.
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From page 76... ...
and lowlying unoccupied molecular orbitals (LUMO) reveals the structural and electrical properties of bio-inorganic interfaces, such as CNT/protein, quantum dot (QD)
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From page 77... ...
enables rapid, parallel transport within seconds to a specific location on the chip array by providing independent current or voltage control on each electrode. Current commercialized applications of this platform include DNA hybridization and DNA analysis for molecular diagnostics via fluorescence detection using fluorophore-labeled reporters (Akin et al., 2007; Dubois and Nuzzo, 1992; Ruan et al., 2007; Salem et al., 2004)
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From page 78... ...
Figure ssDNA sequences and functionalized microarray device for dielectrophoresis (E) Specificity of assembly of different lock and key ssDNA sequences.
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From page 79... ...
We anticipate that the first applications in this area will be enabled by top-down approaches for integrating assembled components onto existing device platforms. References Akin, H., J
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From page 80... ...
2003. Covalent coupling of quantum dots to multi-walled carbon nanotubes for electronic device applications.
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From page 81... ...
2004b. Carbon nanotube-modified glassy carbon electrode for adsorptive stripping voltammetric detection of ultratrace levels of 2,4,6-trinitrotoluene.
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