nanopore – TechConnect Briefs

Pore wall charge patterning and spatial profiles of electrical conductivity in short nanopores

Tajparast M., Glavinovic M.I., McGill University, CA

Artificial nanopores are now used as filters, nanofluidic switches or biosensors. Given that their functioning often critically depends on pore conductivity it is important to determine what influences the pore conductivity and how far these [...]

From Viruses to Cells: Tuneable Resistive Pulse Sensors for High Resolution Characterization of Nano to Micro-Scale Particle Solutions

Kozak D., Anderson W., Vogel R., Broom M.F., Izon Science, US

Tuneable resistive pulse sensors (TRPS) have generated considerable interest for their ability to accurately characterize the size, charge and concentration of nano to micro-scale particulate suspensions. Measuring the properties of each particle (e.g. exosome, virus, [...]

Nanoparticle transport models in confined fluids

Mahadevan T.S., Kojic M., Milosevic M., Isailovic V., Filipovic N., Ferrari M., Ziemys A., The Methodist Hospital Research Institute, US

Mechanisms of nanoparticle (NP) and microparticle (MP) transport in confined spaces and role of material properties are not clearly understood, and transport models may not be complete. Here we present recently developed models of convective [...]

Nanopore detection of nerve agent degradation products

Guan X., Gupta J., Zhao Q., de Zoysa R.S., Jayawardhana D.A., The University of Texas at Arlington, US

Improved analytical capability for detection of organophosphate chemical agents (i.e. nerve gases) remains a high priority need in our continuing defense against future terrorist attacks. A nanopore stochastic sensing method for the rapid detection of [...]

Growth and Engineering of High Aspect-Ratio AAO Templates Integrated on Silicon Substrates

Choi S., Daugherty M., Enable IPC Corporation, US

We have developed a CMOS-compatible process for manufacturing nanowires directly on silicon (or other) substrates. This process removes some of the steps for conventional nanowire manufacture. The result are highly-ordered, high aspect-ratio nanowires for use [...]

Recent Advances in the Characterization of Free Volume in Model Fluids and Polymers: Shape and Connectivity

Willmore F.T., Sanchez I.C., University of Texas, US

The solubility and diffusivity of a penetrant species in an amorphous material are determined by the nanoscale properties of its free volume. Positron Annihilation Lifetime Spectroscopy, mechanical measurements of equation of state behavior, and Voronoi [...]

Anodisation of Thin Film Aluminium

Douglas C, Evans P, Pollard R.J., Queen's University, Belfast & Nanotec NI, UK

Anodisation of alumina is a promising route for the preparation of nano-templates where regular arrays of pores can be produced in foils using a two step anodisation process [1] and Figure 1. The integration of [...]

Characterization of a Solid State DNA Nanopore Sequencer using Multi-Scale (Nano-to-Device) Modeling

Jenkins J.W., Sengupta D., Sundaram S., CFD Research Corporation, US

The rapid convergence of nanotechnology and biotechnology has generated a need for design tools that can incorporate sufficiently detailed models of the nanoscale molecular phenomena with overarching transport and related effects in microfluidic devices. Currently, [...]