my.chemeurope.com
With an accout for my.chemeurope.com you can always see everything at a glance – and you can configure your own website and individual newsletter.
24-09-2008: Takayoshi Sasaki and colleagues at the National Institute of Materials Science, Tsukuba, and co-workers from the University of Tsukuba, Japan have prepared rare earth hydroxide films by trapping micrometer-sized crystals at a hexane-water interface and then transferring them to a substrate. The resulting film is of much better quality in terms of orientation and coverage than films fabricated by traditional methods, such as solvent evaporation or spin-coating.
In situ the films show anion-exchange properties at room temperature allowing modification and further design. In addition the films exhibit photoluminescence properties which may have potential applications in optical devices or luminescence probes for chemical sensors.
The motivation for Sasaki and his team was to develop a method that could synthesise well-organised functional material films that could have a wide range of applications.
The next challenge is to "control the lateral alignment of the crystals, then much better films of closely packed crystals may be produced. Such films would exhibit enhanced physical properties," says Sasaki.
Original publication: T. Sasaki et al., Chem. Commun., 2008.
Watchlist
This is where you can add this news to your personal favourites
Additional Information
Dark-field microscopy coupled with capillary electrophoresis to see gold nanoparticles
Chinese scientists have combined interfacing dark field microscopy (DFM) with capillary electrophoresis (CE) and used it to “see” single gold nanoparticle (AuNPs) movement visually and in real time. The study also served to confirm the separation rules and fundamental theories of CE. more
Detecting harmful dye used to make ketchup red
It may soon be easier to protect consumers from dangerous condiments thanks to an electrochemical method developed by Chinese scientists that can spot the toxic azo dye, Orange II. They were able to spot the dye at nanomolar concentrations in ketchup and chilli products using the sensor. O ... more
Cobalt oxide nanosheet electrodes to enhance batteries
A graphene inspired electrode material that could help batteries hold more power has been developed by Chinese scientists. The large surface area of these cobalt oxide nanosheets is key to their electrochemical performance. As technology advances, the search is on for batteries that can pac ... more
Royal Society of Chemistry (RSC)
The RSC is a leading international publisher of highly regarded journals and books in the chemical sciences. The RSC is also the professional body for chemists with a global membership of over 46,000. more
Materials That Shrink When Heated
One common reason that people with fillings experience toothache is that their fillings expand at a different rate to the original tooth when, for example, drinking a hot drink. Contrary to intuition, however, not all materials expand when heated - some actually contract. Recent research on ... more
High-performance thin film boost for electronics research
Researchers of the International Center for Materials Nanoarchitectonics (MANA) at the National Institute for Material Science have developed the world's highest performance thin-film capacitors using a new high-permittivity (high-k) dielectric sheet with molecular-level thickness (~1 nm). ... more
Atomic Nano-Switches Emulate Human Memory
In a breakthrough, researchers at the International Center for Materials Nanoarchitectonics (MANA) demonstrate for the first time the key features in the neuroscience and psychology of memory by a AgS2 synapse.Artificial neural networks have attracted attention as a means to a better unders ... more
Polymer films mimic nature’s iridescence
Triple-layer photonic polymer films have been prepared that show the same type of iridescent optical behaviour that is seen in the bodies of some insects and birds. The scientists behind the work mimicked the phenomenon by preparing triple-layered films that contain different liquid crystal ... more
Planting the seeds for nanoparticle growth
Metal sulphide building blocks can be used to create functional heterostructured nanoparticles say scientists from Japan. Toshiharu Teranishi and co-workers from the University of Tsukuba, Ibaraki, have developed a seed-mediated growth strategy to make flower- and dumbbell-shaped heterostr ... more
Photoluminescent well-organised films
Takayoshi Sasaki and colleagues at the National Institute of Materials Science, Tsukuba, and co-workers from the University of Tsukuba, Japan have prepared rare earth hydroxide films by trapping micrometer-sized crystals at a hexane-water interface and then transferring them to a substrate. ... more
Über CHEMIE.DE
CHEMIE.DE Information Service GmbH runs specialist scientific internet portals. The secret to our success? We are familiar with what we publish.
Advertising at CHEMIE.DE
Our advertising formats support you in getting your message across to a clearly defined target audience.
© 1997-2013 CHEMIE.DE Information Service GmbH, All rights reserved
Netmeeting
