Mark Baxendale

Queen Mary, University of London, School of Physics and Astronomy, Faculty Member

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My overarching research interest is in self-organisation and emergent phenomena in the physical and life sciences. Nanotechnology - the understanding, characterisation, and manipulation of matter on the scale of several atoms to large macromolecules - is the vehicle for this activity. My prime focus is on the science and applications nanoscale carbon macromolecules (fullerenes, carbon nanotubes, and graphene) - considered to be the archetypal building blocks of nanotechnology - in the physical and life sciences. I also have the related interests: nano-bio interface phenomena, percolation in molecular networks, quantum electronic phenomena, and nanoscale magnetism.

My current activity spans:

•Targeted drug delivery systems
•Magnetic hyperthermia cancer therapy
•Transparent conducting electrodes for plastic electronics
•Thermoelectric materials for energy harvesting
•Smart tissue scaffold for regenerative medicine.
•Single molecule detection
•Quantum electronic devices
•Multifunctional composite materials
Phone: +44(0)20 7882 5795
Address: School of Physics and Astronomy
Queen Mary, University of London
Mile End Road
London
E1 8NB
UK

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Papers by Mark Baxendale

Applications, composites, and devices: general discussion

Faraday Discuss., 2014

The Origin of Long-Period Lattice Spacings Observed in Iron-Carbide Nanowires Encapsulated by Multiwall Carbon Nanotubes

by Mark Baxendale and Lisa Karlsson

Microscopy and Microanalysis, 2013

Structures comprising single-crystal, iron-carbon-based nanowires encapsulated by multiwall carbo... more Structures comprising single-crystal, iron-carbon-based nanowires encapsulated by multiwall carbon nanotubes self-organize on inert substrates exposed to the products of ferrocene pyrolysis at high temperature. The most commonly observed encapsulated phases are Fe₃C, α-Fe, and γ-Fe. The observation of anomalously long-period lattice spacings in these nanowires has caused confusion since reflections from lattice spacings of ≥ 0.4 nm are kinematically forbidden for Fe₃C, most of the rarely observed, less stable carbides, α-Fe, and g-Fe. Through high-resolution electron microscopy, selective area electron diffraction, and electron energy loss spectroscopy we demonstrate that the observed long-period lattice spacings of 0.49, 0.66, and 0.44 nm correspond to reflections from the (100), (010), and (001) planes of orthorhombic Fe₃C (space group Pnma). Observation of these forbidden reflections results from dynamic scattering of the incident beam as first observed in bulk Fe₃C crystals.With small amounts of beam tilt these reflections can have significant intensities for crystals containing glide planes such as Fe₃C with space groups Pnma or Pbmn.

Synthesis in gas and liquid phase: general discussion

by Christopher Ewels, M. Heggie, Mark Baxendale, and Varsha Khare

Faraday discussions, 2014

Mark Baxendale

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