Base Dependent DNA-carbon Nanotube Interactions: Activation Enthalpies and Assembly-disassembly Control

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Base Dependent DNA-carbon Nanotube Interactions: Activation Enthalpies and Assembly-disassembly Control

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Title: Base Dependent DNA-carbon Nanotube Interactions: Activation Enthalpies and Assembly-disassembly Control
Author: Albertorio, Fernando; Hughes, Mary E.; Golovchenko, Jene A.; Branton, Daniel

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Citation: Albertorio, Fernando, Mary E. Hughes, Jene A. Golovchenko, and Daniel Branton. 2009. Base dependent DNA-carbon nanotube interactions: activation enthalpies and assembly-disassembly control. Nanotechnology 20(39): 395101.
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Abstract: We quantify the base dependent interactions between single stranded DNA and single walled carbon nanotubes (SWNTs) in solution. DNA/SWNT hybrids hold the promise of applications ranging from nanoscale electronics and assembly of nanotube based materials, to drug delivery and DNA sequencing. These applications require control over the hybrid assembly and disassembly. Our analytical assay reveals the order of nucleobase binding strengths with SWNTs as G>C>A>T. Furthermore, time dependent fixed temperature experiments that probe the kinetics of the dissociation process provide values for the equilibrium constants and dissociation enthalpies that underlie the microscopic interactions. Quantifying the base dependency of hybrid stability shows how insight into the energetics of the component interactions facilitates control over hybrid assembly and disassembly.
Published Version: 10.1088/0957-4484/20/39/395101
Terms of Use: This article is made available under the terms and conditions applicable to Open Access Policy Articles, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#OAP
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:5168873

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  • FAS Scholarly Articles [7219]
    Peer reviewed scholarly articles from the Faculty of Arts and Sciences of Harvard University
 
 

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