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open access

Persistence Length Control of the Polyelectrolyte Layer-by-Layer Self-Assembly on Carbon Nanotubes

Description: One-dimensional inorganic materials such as carbon nanotubes1 and semiconductor nanowires have been central to important advances in materials science in the last decade. Unique mechanical and electronic properties of these molecular-scale wires enabled a variety of applications ranging from novel composite materials, to electronic circuits, to new sensors. Often, these applications require non-covalent modification of carbon nanotubes with organic compounds, DNA and biomolecules, and polymers … more
Date: April 30, 2005
Creator: Huang, S. J.; Artyukhin, A. B.; Wang, Y.; Ju, J.; Stroeve, P. & Noy, A.
Partner: UNT Libraries Government Documents Department
open access

Bio-functional subwavelength optical waveguides for biodetection

Description: We report a versatile biofunctional subwavelength photonic device platform for real-time detection of biological molecules. Our devices contain lipid bilayer membranes fused onto metal oxide nanowire waveguides stretched across polymeric flow channels. The lipid bilayers incorporating target receptors are submersed in the propagating evanescent field of the optical cavity. We show that the lipid bilayers in our devices are continuous, have very high mobile fraction, and are resistant to fouling… more
Date: July 10, 2007
Creator: Sirbuly, Donald J.; Fischer, Nicholas; Huang, Shih-Chieh; Artyukhin, Alexander; Tok, Jeff & Bakajin, Olgica
Partner: UNT Libraries Government Documents Department
open access

Formation, Stability, and Mobility of One-Dimensional Lipid Bilayer on High Curvature Substrates

Description: Curved lipid membranes are ubiquitous in living systems and play an important role in many biological processes. To understand how curvature and lipid composition affect membrane formation and fluidity we have assembled and studied mixed 1,2-Dioleoyl-sn-Glycero-3-Phosphocholine (DOPC) and 1,2-Dioleoyl-sn-Glycero-3-Phosphoethanolamine (DOPE) supported lipid bilayers on amorphous silicon nanowires with controlled diameters ranging from 20 nm to 200 nm. Addition of cone-shaped DOPE molecules to cy… more
Date: March 23, 2007
Creator: Huang, J.; Martinez, J.; Artyukhin, A.; Sirbuly, D.; Wang, Y.; Ju, J. W. et al.
Partner: UNT Libraries Government Documents Department
open access

Fabrication and Characterization of Suspended Carbon Nanotube Devices in Liquid

Description: Suspended carbon nanotube devices are a promising platform for future bio-electronic applications. Suspended carbon nanotube transistors have been previously fabricated in air; however all previous attempts to bring them into liquid failed. We analyze forces acting on the suspended nanotube devices during immersion into liquids and during device operation and show that surface tension forces acting on the suspended nanotubes during transfer into the liquid phase are responsible for the nanotube… more
Date: October 30, 2006
Creator: Artyukhin, A.; Stadermann, M.; Stroeve, P.; Bakajin, O. & Noy, A.
Partner: UNT Libraries Government Documents Department
open access

Functional One-Dimensional Lipid Bilayers on Carbon Nanotube Templates

Description: We present one-dimensional (1-D) lipid bilayer structures that integrate carbon nanotubes with a key biological environment-phospholipid membrane. Our structures consist of lipid bilayers wrapped around carbon nanotubes modified with a hydrophilic polymer cushion layer. Despite high bilayer curvature, the lipid membrane maintains its fluidity and can sustain repeated damage-recovery cycles. We also present the first evidence of spontaneous insertion of pore-forming proteins into 1-D lipid bilay… more
Date: July 23, 2004
Creator: Artyukhin, Alexander; Shestakov, Alexei; Harper, Jennifer; Bakajin, Olgica; Stroeve, Pieter & Noy, Aleksandr
Partner: UNT Libraries Government Documents Department
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