This month’s issue focuses on materials in medicine, and includes:
•A timely delivery – Roy Carter, Director of Celsum Technologies, and Mike Newton, Emeritus Professor, The School of Pharmacy, University of London, describe how technology developed for the production of solid gun and rocket propellants has been tailored to enable pharmaceutical pills to progressively release active ingredients. Computer modelling was used to predict tablet erosion in the human body.
•Light fantastic - Recent advances in organic semiconductors have led to a light-emitting sticking plaster that treats skin cancers. Professor Ifor Samuel from the Organic Semiconductor Centre at the University of St Andrews reports on photodynamic therapy (PDT) as an attractive alternative to surgery. In PDT, light and a pharmaceutical cream are used to treat non-melanoma skin cancers. Aminolaevulinic acid in the cream is metabolised to a porphyrin, which is a photosensitiser. When illuminated, a photochemical reaction occurs destroying the surrounding tissue.
Differences in metabolism between normal and tumour cells mean that there is a higher concentration of porphyrin in the tumour than in the surrounding healthy tissue.
•Cast away - Articulated materials can be used to support injured body parts. Mary Anne Cordeiro, Commercial Director of FlexNlock Ltd, explores a family of materials suitable for any application that requires customised moulding and setting. The material can stretch and conform around complex 3D shapes. Once in the desired position, energy, such as in the form of high intensity visible light, locks the structure into place. Developed by researchers in the UK at the Royal National Orthopaedic Hospital, University College London and Brunel University, the material could provide treatment for patients with spinal disabilities, particularly those with scoliosis.
In addition, Materials World carries industry and conference news, as well as event listings. The mining features in August’s issue cover attempts to harmonise reporting standards. ‘In reserve’ focuses on the Pan European Resources Committee, a member of the Committee for Mineral Reserves International Reporting Standards. The second article, ‘Coded messages’ examines government perceptions of mining companies, looking at how mining codes have brought prosperity to African countries, and the limitations of earlier codes.
New design improves performance of flexible wearable electronics
23.06.2017 | North Carolina State University
Plant inspiration could lead to flexible electronics
22.06.2017 | American Chemical Society
An international team of scientists has proposed a new multi-disciplinary approach in which an array of new technologies will allow us to map biodiversity and the risks that wildlife is facing at the scale of whole landscapes. The findings are published in Nature Ecology and Evolution. This international research is led by the Kunming Institute of Zoology from China, University of East Anglia, University of Leicester and the Leibniz Institute for Zoo and Wildlife Research.
Using a combination of satellite and ground data, the team proposes that it is now possible to map biodiversity with an accuracy that has not been previously...
Heatwaves in the Arctic, longer periods of vegetation in Europe, severe floods in West Africa – starting in 2021, scientists want to explore the emissions of the greenhouse gas methane with the German-French satellite MERLIN. This is made possible by a new robust laser system of the Fraunhofer Institute for Laser Technology ILT in Aachen, which achieves unprecedented measurement accuracy.
Methane is primarily the result of the decomposition of organic matter. The gas has a 25 times greater warming potential than carbon dioxide, but is not as...
Hydrogen is regarded as the energy source of the future: It is produced with solar power and can be used to generate heat and electricity in fuel cells. Empa researchers have now succeeded in decoding the movement of hydrogen ions in crystals – a key step towards more efficient energy conversion in the hydrogen industry of tomorrow.
As charge carriers, electrons and ions play the leading role in electrochemical energy storage devices and converters such as batteries and fuel cells. Proton...
Scientists from the Excellence Cluster Universe at the Ludwig-Maximilians-Universität Munich have establised "Cosmowebportal", a unique data centre for cosmological simulations located at the Leibniz Supercomputing Centre (LRZ) of the Bavarian Academy of Sciences. The complete results of a series of large hydrodynamical cosmological simulations are available, with data volumes typically exceeding several hundred terabytes. Scientists worldwide can interactively explore these complex simulations via a web interface and directly access the results.
With current telescopes, scientists can observe our Universe’s galaxies and galaxy clusters and their distribution along an invisible cosmic web. From the...
Temperature measurements possible even on the smallest scale / Molecular ruby for use in material sciences, biology, and medicine
Chemists at Johannes Gutenberg University Mainz (JGU) in cooperation with researchers of the German Federal Institute for Materials Research and Testing (BAM)...
19.06.2017 | Event News
13.06.2017 | Event News
13.06.2017 | Event News
27.06.2017 | Power and Electrical Engineering
27.06.2017 | Information Technology
27.06.2017 | Physics and Astronomy