Dreidimensionale Gerueste, auf denen Zellen sich ansiedeln und zu Geweben oder Organen heranwachsen koennen, sind in der regenerativen Medizin begehrt. Materialwissenschaftler der Uni Wuerzburg haben dafuer erfolgreich neue Fasern mit ganz besonderen Eigenschaften entwickelt.
Physics is sometimes just like a criminal investigation. Researchers gather one piece of evidence after another in order to solve a mystery - for example, the question as to how unconventional superconductivity is caused, something which is also of particular interest for technical applications. An international team involving scientists at the Max Planck Institute for Chemical Physics of Solids has now provided the strongest evidence yet that magnetic interactions can bring about this form of zero-resistance current transport - something that physicists have been gathering evidence for, for some time.
Pyrroles, which are rings containing one nitrogen and four carbon atoms, are essential components of our red hemoglobin as well as the green chlorophyll in plants. Japanese researchers have now also used this molecular motif in the construction of new nanostructured materials: They combined planar pyrrole-containing negatively charged complexes with similarly planar, positively charged organic ions.
The Institute of Microelectronics (IME), an institute of the Agency for Science, Technology and Research (A*STAR), and the University of Illinois at Urbana-Champaign (Illinois) have entered into a research collaboration focussed on identifying and defining the ground rules for the systematic optimisation of nanowire sensor design as well as the techniques for batch fabrication.
A new paper describes, for the first time, a simple molecule that each time it chemically reacts with a surface prepares a hospitable neighbouring site at which the next incoming molecule reacts. Accordingly, these molecules, when simply dosed (blindly) on the surface, spontaneously grow durable 'molecular-chains'. These molecular chains are the desired prototypes of nano-wires.
A team of University of Akron scientists discovered a new method for patterning curved surfaces. The technique creates patterns on curved or topographically uneven surfaces with stand-alone nanoparticles, opening new technology opportunities.
The awards, presented during a symposium at Pittcon 2011, March 13-18, Georgia World Congress Center (GWCC), Atlanta, Georgia, will recognize scientists from diverse disciplines including bioanalytical science, biomedical, chromatography, electrochemistry, mass spectrometry, nanotechnology, separations science, and vibrational spectroscopy.
This conference brings together experts in various fields of engineering, from biomedical to environmental to materials engineering to the artificial intelligence community to discuss the state of the art and find solutions and trends for the future development of this exciting and cutting edge research and technology domain.
Tests of the new high-resolution electron microscope TITAN CUBED 80-300 has been just finished at the Institute of Physics of the Polish Academy of Sciences. The microscope is one of the best facilities of such kind in Europe and allows for the comprehensive examination of materials used in nanotechnology and spintronics.
A key step in many nanofabrication processes is to create thin films, sometimes only one molecule thick, by a method known as atomic layer deposition. Researchers at Cornell and Tel Aviv University have developed a new tool for nanofabricators to test the physical properties of such films.
The Technology Strategy Board and the Engineering and Physical Sciences Research Council have jointly allocated up to GBP 400,000 to stimulate innovation with technologies that can address the potential environmental, health and safety (EHS) aspects of the development of nanoscale technologies, either by offering an innovative EHS product or by solving EHS issues with nanotechnology enabled products and processes.
The EU Commission's Scientific Committee for Emerging and Newly Identified Health Risks (SCENIHR) has published a 46-page paper - Scientific Basis for the Definition of the Term nanomaterial - where it basically concludes that size should be the basis for the scientific definition of the term nanomaterials.