Dec. 15, 2014
Due to their excellent electro-mechanical energy conversion capability also at the nanoscale, BaTiO3 nanostructure arrays are gaining a great interest for energy harvesting applications. The systematic study on the hydrothermal conversion of TiO2 nanotubes obtained by anodic oxidation allowed the fabrication of rod-like nanostructured BaTiO3 arrays with promising ferroelectric properties. Their compositional homogeneity, crystalline phase and size, of importance for their application, are discussed.
moreDec. 09, 2014
An international team, including scientists from DESY, has caught a light sensitive biomolecule at work with an X-ray laser. The study proves that X-ray lasers can capture the fast dynamics of biomolecules in ultra slow-motion, as the scientists led by Prof. Marius Schmidt from the University of Wisconsin-Milwaukee write in the journal Science. "Our study paves the way for movies from the nano world with atomic spatial resolution and ultrafast temporal resolution", says Schmidt.
moreNov. 04, 2014
Jülich scientists have developed a new control technique for scanning tunnelling microscopes that enables the user to manipulate large single molecules interactively using their hands. Until now, only simple and inflexibly programmed movements were possible.
moreOct. 13, 2014
Modern optical and optoelectronic devices are composed of different optical materials and photonic structures which need to be analyzed at the microscale. Comprehensive micro-characterization including functional and structural properties mostly requires a combination of different microscopic techniques applied to these devices. In this article the characterization of optical materials with Correlative Light and Electron Microscopy (CLEM) is outlined for the example of a Light Emitting Diode (LED).
moreOct. 10, 2014
Physicists from the University of Regensburg have developed a novel microscope that allows them to record slow-motion movies of tiny nanostructures with groundbreaking time resolution - faster even than a single oscillation cycle of light. With their new microscope they have directly imaged the super-fast motion of electrons, which has been published in Nature Photonics.
moreSep. 23, 2014
Imagine that you want to find out from a single picture taken of the front of a house, what the building looks like from behind, whether it has any extensions or if the brickwork is damaged, and how many rooms are in the basement. Sounds impossible? Not in the nanoworld. Scientists from Jülich and Xi'an have developed a new method with which crystal structures can be reconstructed with atomic precision in all three dimensions. Admittedly, they did not use a picture from a simple digital camera to perform this feat, but rather an image from an ultra-high resolution electron microscope. The process is also especially suitable for the spatial mapping of radiation-sensitive samples, which would be quickly destroyed by the high energy measurement beam. The results have been published in the current edition of Nature Materials.
moreSep. 15, 2014
JPK Instruments, a manufacturer of nanoanalytic instrumentation for research in life sciences and soft matter, announces their expansion into the US market with new distributors and the availability of the NanoWizard AFM.
moreJul. 28, 2014
A multi-institutional team of researchers has developed a new nanoscale agent for imaging the gastrointestinal (GI) tract. This safe, noninvasive method for assessing the function and properties of the GI tract in real time could lead to better diagnosis and treatment of gut diseases. Results have been published online in Nature Nanotechnology.
moreJul. 17, 2014
Large area ordered nanopatterning of RF sputtered AlOx layers have been carried out. The technique involves UV laser treating of the film through LB films of silica nanospheres. The hexagonal, close packed arrangement of these spheres was projected to the surface due to the laser treatment resulting in ordered structure of pits of ~200 nm diameter and 1.3 nm depths. The samples were characterized by means of AFM and XTEM. Experimental results are in good agreement with the simulations.
moreJul. 07, 2014
Nanomaterials are of significant economic interest with a global market value of roughly 20 billion €, which is expected to rise to 2 trillion € by 2015 . For commercial use, the European Union provides the following recommended definition: "‘Nanomaterial' means a natural, incidental or manufactured material containing particles, in an unbound state or as an aggregate or as an agglomerate and where, for 50% or more of the particles in the number size distribution, one or more external dimensions is in the size range 1 nm-100 nm" .