Imperial College London – Page 2

Solid-state nanopores: a new tool for biomedical diagnostics

Khongkow M., Instuli E., Ivanov A., Albrecht T., Edel J.B., Imperial College London, UK

In this work, we present first results from the experimental implementation of an electrode/nanopore architecture with the aim of characterizing ion and DNA transport under the influence of a local alternating electric field. This includes [...]

Nanopore/electrode structures for single molecule biosensing

Albrecht T., Imperial College London, UK

In this contibution I will present some of our work on solid-state nanopores, the fabrication of nanopore/electrode structures and how these can be used for single-molecule biosensing applications (DNA, proteins etc.). Specifically, I will introduce [...]

Computer Simulations of CrO2 as a Spin Polarized Material for Spintronics

Kaur R., Mallia G., Yates K.A., Harrison N.M., Imperial College London, UK

Despite theoretical predictions of chromium dioxide being a half-metallic ferromagnet. Devices based on chromium dioxide have performed poorly. One major issue is the influence of defects on the electronic structure and magnetic properties as well [...]

Fuel cell catalysts based on core-shell nanoparticles

Xu H., Zalitis C., Rivera-Hernandez M., Albrecht T., Kucernak A., Imperial College London, UK

In this contribution, we focus on the different approaches to dispersing Pt and Co/Pt core/shell nanoparticles in solution and then depositing them on representative catalyst supports. These include gold or highly ordered pyrolytic graphite (HOPG) [...]

Ab initio investigation of Graphene Based Systems

Virka N.S., Harrisonb N.M., Montanaric B., Imperial College London, UK

First-principles calculations employing the hybrid exchange functional B3LYP are used to determine the structural parameters, electronic structure and associated properties of a graphene sheet, graphane chair and graphane boat confirmations. Graphane is found to have [...]

Spin Dependent Transport in Carbon Nanostructures

Harrison N.M., Montanari B., Imperial College London, UK

A theoretical investigation of the electronic and magnetic structure in carbon nanoribbons, defective graphene and carbon peapod structures. The critical importance of electron correlation in the emergent behaviour will be demonstrated for; the generation of [...]

Theoretical Investigation CrO2 as a Spin-Polarized Material

Swaim J.D., Mallia G., Harrison N.M., Imperial College London, UK

Spintronics represent a new class of electronic devices, based on their ability to conduct spin-polarized currents. CrO2 has received much attention as a potential spintronic material due to its theoretical 100% spin-polarization. Band structure calculations [...]

Carbon Nanopipes dispersions in aqueous solutions and effects on cell viability

Whitby M., Lin J., Quirke N., Thanou M., Imperial College London, UK

The development of carbon nanomaterials for biomedical applications appears highly attractive due to their nanoscale properties although their biological profile is still in doubt. Herewith, we report that the amorphous vs crystalline character of carbon [...]

How much advantage do Nanoscale Phenomena afford for Pulmonary Delivery?

Walji N., Thanou M., Quirke N., Imperial College London, UK

Although claims of improved performance due to nanoscale phenomena are made on a daily basis, exactly how much advantage can be afforded by nanotechnology for specific medical applications is quantitatively unknown. It is generally suggested [...]

Organisation of peptide ligands on the surface of gene vectors

Wang M., Miller A.D., Thanou M., Imperial College London, UK

Through the considerate organisation of surface ligands, we have developed a lipid-based vector for the targeted delivery to cancer cells. Our ligand is a short peptide with high affinity for the Urokinase Plasminogen Activator receptor [...]