Micro-CT of Parchment
Abstract: Some results and a discussion of the problems faced when trying to use micro-CT to read damaged parchment documents. Download: Slides
High contrast XMT studies of in-situ electrochemical dissolution of broken dental tools
Abstract: Fracture of nickel-titanium (NiTi) endodontic files is an uncommon but potentially damaging occurrence during root canal preparation. If the broken portion of the file remains inside the tooth canal it can prevent complete preparation of the root canal with consequent negative impact on treatment outcomes. Removal of file fragment from the tooth canal is currently a mechanical process, which due to the limited working space and restricted view can lead to further problems including perforation of the tooth....
Apocalypto Revealing the Bressingham Roll
Abstract: “Can modern imaging and image processing techniques retrieve textual content from damaged parchment rolls?” The Institute of Dentistry at Queen Mary University of London is the leading centre for very high contrast X-Ray Microtomogra- phy imaging. The Apocalypto (Greek for Revelation) Project is our collaboration with experts in Computer Vision systems in the Com- puter Science department at Cardiff University. This collaboration has developed techniques and a workflow that allows us to reveal some textual content from damaged parchment rolls....
Fragmenting densely mineralised acellular protrusions from articular calcified cartilage: a role in osteoarthritis?
Abstract: High density mineralised protrusions (HDMP) from the tidemark mineralising front into hyaline articular cartilage (HAC) were first discovered in Thoroughbred racehorse fetlock joints and later in Icelandic horse hock joints. If these fragment, they could make a significant contribution to joint destruction in osteoarthritis. We looked for them in human material. Methods Whole femoral heads removed at operation for joint replacement or from dissection room cadavers were studied by MRI DESS at 0....
Apocalypto - Revealing lost text with XMT
Abstract: “Can brute-force high-contrast tomography techniques and image processing techniques retrieve textual content from damaged heritage materials?” The Dental Institute at Queen Mary University of London (QMUL) is the leading centre for very high contrast X-Ray Microtomography imaging. The Apocalypto Project is our collaboration with the heritage community and experts in Computer Vision systems in the Computer Science Department at Cardiff University. This collaboration has developed techniques and a workflow that allows us to reveal textual content from moisture-damaged parchment rolls....
On fragmenting, densely mineralised acellular protrusions into articular cartilage and their possible role in osteoarthritis
Abstract: High density mineralised protrusions (HDMP) from the tidemark mineralising front into hyaline articular cartilage (HAC) were first described in Thoroughbred racehorse fetlock joints and later in Icelandic horse hock joints. We now report them in human material. Whole femoral heads removed at operation for joint replacement or from dissection room cadavers were imaged using magnetic resonance imaging (MRI) dual echo steady state at 0.23 mm resolution, then 26 µm resolution high contrast X-ray microtomography, sectioned and embedded in polymethylmethacrylate, blocks cut and polished and re-imaged with 6µm resolution X-ray microtomography....
Is there evidence for change to collagen within parchment samples after exposure to an X-ray dose during high contrast X-ray microtomography? a multi technique investigation
Abstract: The potential use of high contrast X-ray microtomography (XMT) for the reading of fragile historic documents without the need to physically unravel them is a new analytical imaging development in the field of conservation however, it is important to first assess if there is any evidence of change in the parchment structure during scanning by XMT. Modern and historic parchment samples were exposed to X-rays using the high contrast XMT equipment....
Apocalypto: Revealing the unreadable
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Structural studies of aliphatic substituted phthalocyanine-lipid multilayers.
Abstract: A Langmuir-Blodgett film of aliphatic substituted phthalocyanines on a C18 silane supporting layer coupled onto a silicon substrate has been investigated using neutron reflectometry. This multilayer structure is seen as a possible candidate for phthalocyanine-lipid biosensor devices. The results show the suitability of the C18 ligands as an anchoring layer for the phthalocyanines. The scattering length density profiles demonstrate the effectiveness of a lipid monolayer in partitioning the composition of phthalocyanine layers from that of the bulk liquid....
Surface texturing of Si, porous Si and TiO2 by laser ablation
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Formation and characterisation of silicon meso-and nano-structures
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Solidification driven extrusion of spikes during laser melting of silicon pillars
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Stain etching of silicon pillars and macropores
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Non-lithographic method of forming ordered arrays of silicon pillars and macropores
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Laser-etched silicon pillars and their porosification
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