Biomineralized tissues, such as sea shells and bones, grow in a genetically programmed way to obtain specific shapes and compositions, which define the unique functionalities. The growth of biominerals usually takes place in aqueous media at ambient conditions. Material scientists are keen to adapt this process from nature for a cost-efficient and simple fabrication of inorganic based materials.
Scientists at ETH Zurich used a set of laser beams to create a honeycomb-like structure similar to that found in graphene. By loading ultracold atoms into this optical lattice, they can simulate electronic properties of this promising material. Such experiments may be used to identify electronic properties of materials which have yet to be discovered.
Cutting-edge artists from across the world will participate in the "Art of the Small", a juried exhibition held in conjunction with the Nanotech Commercialization Conference, April 4-5, 2012 at the American Tobacco Campus, in Durham, NC.
Researchers from Stanford University and the U.S. Department of Energy's SLAC National Accelerator Laboratory have created the first-ever system of 'designer electrons' - exotic variants of ordinary electrons with tunable properties that may ultimately lead to new types of materials and devices.
Using artificial DNA molecules, an international team of scientists headed by the Cluster of Excellence Nanosystems Initiative Munich has produced nanostructured materials that can be used to modify visible light by specification.
Experiments at SLAC's Linac Coherent Light Source (LCLS) have shown a promising new way to collect data on these elusive proteins. Researchers embedded tiny protein crystals in an oily paste that mimics the supportive environment of the cell membrane, and then hit them with a powerful X-ray laser to determine the protein's structure.
Imagine a test that sifts through millions of molecules in a drop of a patient's blood to detect a telltale protein signature of a cancer subtype, or a drug ferry that doesn't release its toxic contents until it slips inside cancer cells. These and other nanotechnologies could be game changers in how we diagnose, monitor and treat cancer. To more fully understand the impact, The Kavli Foundation held a roundtable conference with four pioneers in the field.
Silver nanoparticles cause more damage to testicular cells than titanium dioxide nanoparticles, according to a recent study by the Norwegian Institute of Public Health. However, the use of both types may affect testicular cells with possible consequences for fertility.
Die Kryo-Elektronentomografie ermoeglicht hochaufloesende, dreidimensionale Einblicke in das Innere von Zellen. Jedoch koennen damit nur sehr kleine Zellen oder duenne Randbereiche groesserer Zellern direkt untersucht werden. Wissenschaftler vom Max-Planck-Institut fuer Biochemie haben jetzt eine Methode entwickelt, um in nahezu unzugaengliche Zellbereiche vorzudringen.