A new study explores the ways in which electrical charges move along DNA bases affixed to a pair of electrodes.
Tuesday, April 14, 2015
Making carboxyl(ate) friends
When it comes to supramolecular chemistry, the carboxylic acid group - and its conjugate carboxylate base - is one of the chemist's most flexible friends. In pairs, they act as supramolecular synthons from which more complicated structures might be built but also offer up complex hydrogen bond connectivity.
Graphene scientists develop ultrafast photodetectors
Scientists affiliated with Europe's Graphene Flagship develop a photodetector that converts incident light into electrical signals on femtosecond timescales, enabling ultrafast operation speeds for electronic circuits in optical communications and various other applications.
Crystal clear: crystal breeding factory uncovered
A breakthrough in understanding the way in which crystals develop will have a major impact for the pharmaceutical, chemical and food industries.
Graphene pushes the speed limit of light-to-electricity conversion
Researchers have been able to develop a graphene-based photodetector capable of converting absorbed light into an electrical voltage at ultrafast timescales.
The microscopic topography of ink on paper
Researchers have analyzed the varying thickness of printed toner in unprecedented 3-D detail, yielding insights that could lead to higher quality, less expensive and more environmentally-friendly glossy and non-glossy papers.
'Parachuting' boron on benzene rings
A bulky catalyst induces pinpoint targeting on benzene to create bioactive molecules.
Nanotechnology takes aircraft manufacturing out of the oven
New technique uses carbon nanotube film to directly heat and cure composite materials.
A new synthesis method produces novel nanostructures from carbon
With the help of a new method, researchers have now succeeded in producing not only spherical but also sheet-like and fibrous nanostructures.
Nanoparticles at specific temperature stimulate antitumor response
Researchers identify precise heat to boost immune system against cancer tumors.
Scientists create invisible objects without metamaterial cloaking
Researchers managed to make homogenous cylindrical objects completely invisible in the microwave range. Contrary to the now prevailing notion of invisibility that relies on metamaterial coatings, the scientists achieved the result using a homogenous object without any additional coating layers.
Quantization of surface Dirac states could lead to exotic applications
Scientists have uncovered the first evidence of an unusual quantum phenomenon - the integer quantum Hall effect - in a new type of film, called a 3D topological insulator. In doing this, they demonstrated that 'surface Dirac states' - a particular form of massless electrons - are quantized in these materials, meaning that they only take on certain discrete values.
Nanotechnology gold rush with cancer-seeking peptides
Researchers have demonstrated a promising new way to increase the effectiveness of radiation in killing cancer cells. The approach involves gold nanoparticles tethered to acid-seeking compounds called pHLIPs.
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