Technology Update
Researchers at the University of Oxford and the Rutherford Appleton Laboratory in the UK are the first to have observed a carbon dimer structure that “hangs off” the edge of monolayer graphene (a sheet of carbon just one atom thick). Finding this feature, called a Klein Edge Doublet (KLD), predicted to exist in theory, helps […]
Researchers have observed a new type of thermoelectric effect in a system made up of two quantum dots that interact capacitively with one another.
A simple solution-processing step that crosslinks perovskite grain surfaces can improve the stability of these efficient solar cell materials. This new result, from researchers in Switzerland and China, could help in the future commercialization of these low-cost emergent semiconductors……….. http://nanotechweb.org/cws/article/tech/62296 Crystal crosslinkers and crosslinked perovskite
Researchers at the Hebrew University of Jerusalem in Israel and Philipps-Universität Marburg in Germany have developed DNA microcapsules carrying anti-cancer drugs that can release their payload in response to specific biomarker stimuli. Targeting microcapsules to infected cells, such as cancer cells, is challenging so the new work is an important step forward in this field…… […]
The operational efficiency of optoelectronic devices hinges on how the energy of injected electrons dissipates. But how these processes occur in nanostructures, which are predominantly surface with little bulk material, has been little understood. Now, studies of theluminescence under a scanning tunnelling microscope (STM) tip have revealed the dominant processes in electron energy dissipation at […]
A new polymer-based dielectric material containing boron nitride sheets that can store and release energy at temperatures of greater than 300°C has been developed
A new way to electrochemically reduce and delaminate graphene oxide (G-O) films rapidly at room temperature has been developed by researchers in the US, Italy and Korea. The films could come in use for a wide range of practical applications including coatings, protective layers, energy storage systems and membranes to name but a few…… http://nanotechweb.org/cws/article/tech/62243 […]
Lead halide perovskite thin films can better absorb sunlight if they are exposed to moisture during fabrication. This counterintuitive result from researchers in the UK, the US, Italy and the Netherlands could help further improve the performance of these up-and-coming solar-cell materials by simply altering the environment in which they are produced………. http://nanotechweb.org/cws/article/tech/62245 The perovksite […]
Thanks to new atomic force microscopy experiments, researchers from Russia and Switzerland say that they have observed the first-ever biological example of Turing nanopatterns – in the corneae of insects. The work could shed more light on the mechanisms underlying the formation of such 3D patterns in living organisms, and may even help in the […]
The number of consumer products using nanomaterials is continuing to rise, raising significant concerns about their potential impact on the environment. In this regard, finding appropriate measures for their analysis presents a major issue. This article reviews the application of nanoparticle tracking analysis (NTA) to overcome this problem……. http://www.azonano.com/article.aspx?ArticleID=4075 Figure 1. Schematic of the […]
The JRC has published science-based options to improve the clarity and the practical application of the EC recommendation on the definition of a nanomaterial…………. https://ec.europa.eu/jrc/en/news/ec-nanomaterial-definition-published The JRC report suggests that size as the sole defining property of a nanoparticle should be maintained
In the study the new battery technology employs use of graphene on the silicon surface and that confers volume expansion leading to extended battery life….. http://www.idtechex.com/research/articles/graphene-doubles-the-energy-density-of-lithium-ion-batteries-00008013.asp?rsst2id=1
Last February, when Tesla (NASDAQ:TSLA) announced its Gigafactory, it spawned a tremendous marketing campaign among graphite junior mining companies. They’ve claimed – and rightly so – that this has tremendous implications for graphite consumption. In fact this single factory (and there are certainly other Li-battery production facilities on the way) can have a tremendous impact […]
Low-frequency electronic noise is a problem in many nanodevices and circuits,
In graphene labs around the world people are seeking the killer application that will bring financial returns on research investments. But producing the graphene in the first place still raises issues. There are several ways to make graphene, each differing in terms of quality – which determines the material’s properties – and cost. Now a […]
Researchers at the Massachusetts Institute of Technology and Harvard Medical School have developed an elastic supramolecular gel that remains stable in the acidic environment of the stomach but which dissolves in the pH-neutral environment of the small and large intestines. The new polymer gel could be used to make improved delayed-release drug dosing systems as […]
A stretchable and bendable transistor has been made by researchers in the US by applying the principles of kirigami – the Japanese art of paper cutting – to graphene. The researchers have also made tiny graphene-based hinges and pyramids, and they are confident that they could reduce the size of their devices to the nanometre […]
A statistical model of polymer chain lengthening has demonstrated fundamental traits required for Darwinian evolution. By studying the dynamics of a system of monomer base units that bond through a template mechanism, researchers have shown how polymerisation in the system within defined constraints can pass information from one generation of polymers to the next….. http://nanotechweb.org/cws/article/tech/62052
Energy storage devices, such as supercapacitors, need to work at temperatures greater than 100°C for applications in ultrahigh power electronics and electric vehicles. However, it has proved difficult to make such devices in the past. Now, a team of researchers from Korea and the US has succeeded in fabricating flexible supercapacitors that have high energy […]
Researchers in China and the US have unveiled the first nanoscale amplifier for light at the technologically important telecommunications wavelength of 1.55 µm
The electrical conductivity of conducting fibres normally decreases when they are highly stretched but researchers at the University of Texas at Dallas have now created superelastic fibres based on carbon nanotubes that do not suffer from this problem. Indeed, the conductivity of the new fibres actually increases by 121-fold when they are stretched to over […]
