CA – Page 28 – TechConnect Briefs

New Ferrocene-Functionalized Cationic Polythiophene For Label-Free Electrochemical DNA Detection

Harding-Lepage P., Le Floch F., Leclerc M., Ho H.-A., Harding-Lepage P., Leclerc M., Université Laval, CA

A specific polycationic polythiophene was discovered in order to identify dsDNA from ssDNA. The main properties of this new polymer are its conformational possibilities associated with photophysics modifications. This conjugated polymer is still subject to [...]

Cationic Polythiophene for Label-Free, Colorimetric and Fluorometric Detection of DNA

Ho H.-A., Leclerc M., Université Laval, CA

In order to respond to new demands and needs in modern medical diagnostics and biomedical research applications, a lot of new DNA detection approaches have been reported. However, most of these methods have the disadvantage [...]

Fast DNA Hybridization on a Multi-Sample Multi-probe Microfluidic Microarray Compact Disc

Peng X.Y., Li P.C.H., Yu H-Z, Parameswaran A.M., Beardmore S., Chou W.L., Simon Fraser University, CA

DNA microarrays are usually constructed using photolithographic synthesis of oligonucleotide probes or by spotting of pre-synthesized probes. These are expensive methods, and only one sample can be applied on a microarray chip at one time. [...]

Structural Characterization of Novel Micro- And Nano-Scale Non-Viral DNA Delivery Systems for Cutaneous Gene Therapy

Foldvari M., Badea I., Wettig S., Verrall R., Bagonluri M., University of Saskatchewan, CA

Our main goal is to develop micro/nano-scale self-assembling delivery vehicles for cutaneous gene therapy. The objective of this study was to characterize the structural and physicochemical properties of novel dicationic lipid-based DNA complexes by atomic [...]

Characterization of a Novel Self-Association of an Alternating Copolymer into Nanotubes in Solution

Malardier-Jugroot C., van de Ven T.G.M., Whitehead M.A., McGill University, CA

The characterisation of the association of an alternating copolymer was performed using theoretical methods (quantum mechanics and molecular mechanics) and experimental methods (cryo-Transmission Electron Microscopy, Neutron Reflectivity and Neutron Scattering). The most stable conformation obtained [...]

Design and Development of Nano-reinforced Bonds and Interfaces

Sun Y., Meguid S.A., Liew K.M., Ong L.S., University of Toronto, CA

This investigation focuses on the design and development of nano-reinforced adhesively-bonded high performance joints. The influence of homogeneous dispersion of carbon nanotubes and alumina nanoparticles on the cohesive strength, interfacial properties and mechanical behaviour of [...]

Kinetics of Microdomain Structures in Multi-Phase Polymer-Liquid Crystalline Materials

Das S.K., Rey A.D., McGill University, CA

A mesoscopic kinetic model for phase separation in the presence of liquid crystalline order has been formulated, and solved using high performance numerical methods. The thermodynamic phase diagram on temperature-polymer concentration plane indicates the presence [...]

A Schrödinger-Poisson Solver for Modeling Carbon Nanotube FETs

John D.L., Castro L.C., Pereira P.J.S., Pulfrey D.L., Department of Electrical and Computer Engineering, CA

Carbon nanotubes are attracting great interest for their use in nanoscale electronic devices. Recent modeling efforts of carbon nanotube field-effect transistors (CNFETs) have been successful in examining the subthreshold behaviour of these devices through a [...]

Simulation of Carbonaceous Mesophases Micro-Textures

de Andrade Lima L.R.P., Rey A.D., McGill University, CA

Carbonaceous mesophases are liquid crystalline precursor that can be spun into carbon fibers using the melt spinning process; the manufacture optimization requires a better understanding of the principles that control the carbon fiber structure development [...]

Multiscale Simulation of Flow-Induced Texture Formation in Thermotropic Liquid Crystals

Grecov D., Rey A.D., McGill University, CA

This paper presents theory and simulation of flow-induced structures, useful to the creation of synthetic material structures and to the biomimetics of natural fibers. We present a multiscale theory and simulation of hydrodynamic texture formation [...]